Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Dec. 31, 2017	Apr. 20, 2018	Jun. 30, 2017
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Trading Symbol	CHCI
Entity Registrant Name	Comstock Holding Companies, Inc.
Entity Central Index Key	0001299969
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 3,472,127
Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		3,374,461
Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		220,250

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents	$ 1,806	$ 5,761
Restricted cash	1,141	1,238
Trade receivables	636	613
Real estate inventories	44,711	49,842
Fixed assets, net	309	255
Goodwill and intangibles	1,939
Other assets, net	616	2,112
TOTAL ASSETS	51,158	59,821
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued liabilities	9,116	7,721
Notes payable-secured by real estate inventories, net of deferred financing charges	23,215	26,927
Notes payable-due to affiliates, unsecured, net of discount	14,893	15,866
Notes payable-unsecured, net of deferred financing charges	1,285	911
Income taxes payable	39	19
TOTAL LIABILITIES	48,548	51,444
Commitments and contingencies (Note 10)
STOCKHOLDERS' EQUITY (DEFICIT)
Additional paid-in capital	177,612	176,251
Accumulated deficit	(189,803)	(184,778)
TOTAL COMSTOCK HOLDING COMPANIES, INC. DEFICIT	(14,376)	(9,875)
Non-controlling interests	16,986	18,252
TOTAL EQUITY	2,610	8,377
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	51,158	59,821
Series C Preferred Stock [Member]
STOCKHOLDERS' EQUITY (DEFICIT)
Preferred stock	442
TOTAL EQUITY	442
Series B Preferred Stock [Member]
STOCKHOLDERS' EQUITY (DEFICIT)
Preferred stock		1,280
TOTAL EQUITY		1,280
Class A [Member]
STOCKHOLDERS' EQUITY (DEFICIT)
Common stock	33	30
Treasury stock, at cost (85,570 shares Class A common stock)	(2,662)	(2,662)
TOTAL EQUITY	33	30
Class B [Member]
STOCKHOLDERS' EQUITY (DEFICIT)
Common stock	2	4
TOTAL EQUITY	$ 2	$ 4

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Series C Preferred Stock [Member]
Preferred Stock, par value	$ 0.01	$ 0.01
Preferred Stock, shares authorized	3,000,000	3,000,000
Preferred Stock, shares issued	579,158	0
Preferred Stock, liquidation value	$ 2,896	$ 0
Series B Preferred Stock [Member]
Preferred Stock, par value	$ 0.01	$ 0.01
Preferred Stock, shares authorized	3,000,000	3,000,000
Preferred Stock, shares issued	0	841,848
Preferred Stock, liquidation value	$ 0	$ 4,209
Class A [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	11,038,071	11,038,071
Common stock, shares issued	3,295,518	3,035,922
Common stock, shares outstanding	3,295,518	3,035,922
Treasury stock, shares	85,570	85,570
Class B [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	220,250	390,500
Common stock, shares issued	220,250	390,500
Common stock, shares outstanding	220,250	390,500

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Revenues
Revenue-homebuilding	$ 43,399	$ 40,696
Revenue-other	2,031	884
Total revenue	45,430	41,580
Expenses
Cost of sales-homebuilding	40,585	38,236
Cost of sales-other	2,297	427
Impairment charges and recovery, net	526	1,703
Sales and marketing	1,490	1,606
General and administrative	5,297	5,586
Interest and real estate tax expense	41	886
Operating loss	(4,806)	(6,864)
Other income, net	66	157
Loss before income tax expense	(4,740)	(6,707)
Income tax expense	(38)	(55)
Net loss	(4,778)	(6,762)
Net income attributable to non-controlling interests	247	2,231
Net loss attributable to Comstock Holding Companies, Inc.	(5,025)	(8,993)
Paid-in-kind dividends on Series B Preferred Stock	78	348
Extinguishment of Series B Preferred Stock	(1,011)
Net loss attributable to common stockholders	$ (4,092)	$ (9,341)
Basic loss per share	$ (1.21)	$ (2.81)
Diluted loss per share	$ (1.21)	$ (2.81)
Basic weighted average shares outstanding	3,370	3,321
Diluted weighted average shares outstanding	3,370	3,321

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]	Non Controlling Interest [Member]	Series B Preferred Stock [Member]	Series C Preferred Stock [Member]	Class A [Member]	Class B [Member]
Beginning Balance at Dec. 31, 2015	$ 5,441	$ 175,963	$ (2,662)	$ (175,785)	$ 6,717	$ 1,174		$ 30	$ 4
Beginning Balance, shares at Dec. 31, 2015						772,000		2,997,000	390,000
Stock compensation and issuances	144	144
Stock compensation and issuances, shares								43,000
Shares withheld related to net share settlement of restricted stock awards	(8)	(8)
Shares withheld related to net share settlement of restricted stock awards, shares								(5,000)
Dividends paid in-kind		(106)				$ 106
Dividends paid in-kind, shares						69,639
Non-controlling interest contributions	14,500	258			14,242
Non-controlling interest distributions	(4,938)				(4,938)
Net (loss) income	(6,762)			(8,993)	2,231
Ending Balance at Dec. 31, 2016	8,377	176,251	(2,662)	(184,778)	18,252	$ 1,280		$ 30	$ 4
Ending Balance, shares at Dec. 31, 2016						842,000		3,035,000	390,000
Stock compensation and issuances	532	531						$ 1
Stock compensation and issuances, shares								90,000
Series B Conversion to Series C		715				$ (1,304)	$ 589
Series B Conversion to Series C, shares						(858,000)	772,000
Stock repurchases and issuances	(89)	58					$ (147)	$ 2	$ (2)
Stock repurchases and issuances, shares							(193,000)	170,000	(170,000)
Dividends paid in-kind		(24)				$ 24
Dividends paid in-kind, shares						15,663
Non-controlling interest contributions	5,000	81			4,919
Non-controlling interest distributions	(6,432)				(6,432)
Net (loss) income	(4,778)			(5,025)	247
Ending Balance at Dec. 31, 2017	$ 2,610	$ 177,612	$ (2,662)	$ (189,803)	$ 16,986		$ 442	$ 33	$ 2
Ending Balance, shares at Dec. 31, 2017							579,000	3,295,000	220,000

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net loss	$ (4,778)	$ (6,762)
Adjustment to reconcile net loss to net cash provided by (used in) operating activities
Amortization of loan discount, loan commitment, deferred financing fees and intangible assets	1,105	1,046
Deferred income tax benefit		7
Depreciation and amortization expense	181	181
Earnings from unconsolidated joint venture, net of distributions	30	16
Stock compensation	346	69
Impairment charges	526	2,425
Changes in operating assets and liabilities:
Purchaser escrow deposits	335	1,096
Trade receivables	271	(281)
Real estate inventories	4,778	(11,090)
Other assets	787	569
Accrued interest	107	748
Accounts payable and accrued liabilities	1,356	141
Income taxes payable	20	19
Net cash provided by (used in) operating activities	5,064	(11,816)
Cash flows from investing activities:
Business acquisition, net of cash acquired	(579)
Purchase of fixed assets	(54)	(42)
Principal received on note receivable	37	37
Collateral for letters of credit	(238)	232
Net cash (used in) provided by investing activities	(834)	227
Cash flows from financing activities:
Proceeds from notes payable	23,517	29,235
Payments on notes payable	(29,947)	(33,735)
Loan financing costs	(234)	(152)
Distributions to non-controlling interests	(6,432)	(4,938)
Contributions from non-controlling interests	5,000	14,500
Repurchase of Series C Preferred Stock	(89)
Taxes paid related to net share settlement of equity awards		(8)
Net cash (used in) provided by financing activities	(8,185)	4,902
Net decrease in cash and cash equivalents	(3,955)	(6,687)
Cash and cash equivalents, beginning of period	5,761	12,448
Cash and cash equivalents, end of period	1,806	5,761
Supplemental cash flow information:
Interest paid, net of interest capitalized	(493)	(73)
Income taxes paid	(18)
Supplemental disclosure for non-cash activity:
Business acquisition notes payable	1,710
Seller's note payable	115	2,124
Accrued liability settled through issuance of stock	127	$ 58
Increase in Series B preferred stock value in connection with dividends paid in-kind	24
Conversion of Class B common stock to Class A common stock	2
Extinguishment of Series B preferred stock	1,011
Increase in class A common stock par value in connection with issuance of stock compensation	$ 1

Organization	12 Months Ended
Organization	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	1. ORGANIZATION Comstock Holding Companies, Inc., incorporated in 2004 as a Delaware corporation, is a multi-faceted real estate development and services company primarily focused in the mid-Atlantic region of the United States. In 2018, the Company has changed its focus to commercial development, asset management, and provision of complementary real estate related services, transitioning from its primary reliance upon revenue generated by production-oriented, for-sale homebuilding. To accomplish the transition from homebuilding to the new lines of business, the Company will operate through two real estate focused platforms – CDS Asset Management, LC (“CAM”) and Comstock Real Estate Services, LC (“CRES”). References in this Annual Report on Form 10-K to “Comstock,” “Company,” “we,” “our” and “us” refer to Comstock Holding Companies, Inc. together in each case with our subsidiaries and any predecessor entities unless the context suggests otherwise. The Company’s Class A common stock is traded on the Nasdaq Capital Market (“NASDAQ”) under the symbol “CHCI”. *Liquidity Developments* We require capital to operate, to post deposits on new potential acquisitions, to purchase and develop land, to construct homes, to fund related carrying costs and overhead and to fund various advertising and marketing programs to generate sales. These expenditures include payroll, community engineering, entitlement, architecture, advertising, utilities and interest as well as the construction costs of our homes. Our sources of capital have historically included, private equity and debt placements (which has included significant participation from Company insiders), funds derived from various secured and unsecured borrowings to finance acquisition, development and construction on acquired land, cash flow from operations, which includes the sale and delivery of constructed homes and finished and raw building lots. The Company is involved in ongoing discussions with lenders and equity sources in order to obtain additional growth capital to fund various new business opportunities. See Note 10 for more details on our credit facilities and Note 15 for details on private placement offerings in 2017 and 2016. As of December 31, 2017, $16.0 million of the Company’s secured project related notes were set to mature at various periods through the end of 2018. As of April 20, 2018, the Company has successfully extended or repaid all obligations with Lenders through April 20, 2018, as more fully described in Note 10 and Note 22, and we are actively engaging our lenders seeking long term extensions and modifications to the loans where necessary. These debt instruments impose certain restrictions on our operations, including speculative unit construction limitations, curtailment obligations and financial covenant compliance. If we fail to comply with any of these restrictions, an event of default could occur. Additionally, events of default could occur if we fail to make required debt service payments or if we fail to come to agreement on an extension on a certain facility prior to a given loan’s maturity date. Any event of default would likely render the obligations under these instruments due and payable as of that event. Any such event of default would allow certain of our lenders to exercise cross default provisions in our loan agreements with them, such that if we default on an obligation, all debt with that particular institution could be called into default. At December 31, 2017, $14.9 million of our notes payable to affiliates were set to mature prior to the end of 2018. These funds were primarily obtained from entities wholly owned by our Chief Executive Officer, who has unilateral ability to extend the maturity dates beyond 2018 as needed. The current performance of our projects has met all required servicing obligations required by the facilities. We are anticipating that with successful resolution of the debt extension discussions with our lenders, the recently completed capital raises from our private placements, current available cash on hand, and additional cash from settlement proceeds at existing and under development communities, the Company will have sufficient financial resources to sustain its operations through the next 12 months, though no assurances can be made that the Company will be successful in its efforts. Refer to Note 10 for further discussion regarding extensions and Note 22 for other subsequent events impacting our credit facilities.

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

A summary of the significant accounting policies and practices used in the preparation of the consolidated financial statements is as follows:

Basis of presentation

The accompanying consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and include the accounts of the Company and all of its majority-owned and controlled subsidiaries. All significant intercompany accounts and transactions have been eliminated. Investments in 50% or less owned partnerships and affiliates are accounted for using the equity method unless it is determined that the Company has control of the entity, in which case the entity would be consolidated. The Company had one joint venture investment accounted for using the equity method as of December 31, 2017 and 2016.

Cash and cash equivalents and restricted cash

Cash and cash equivalents are comprised of cash and short-term investments with maturities of three months or less when purchased. At times, the Company may have deposits with institutions in excess of federally insured limits. We monitor the cash balances in our bank accounts and adjust the balance as appropriate. To date, we have not experienced loss or lack of access to our invested cash or cash equivalents; however, we can provide no assurance that access to our cash and cash equivalents will not be impacted by adverse conditions in the financial market. At December 31, 2017 and 2016, the Company had restricted cash of $1.1 million and $1.2 million, respectively, related to restricted purchaser escrow deposits and cash held in escrow as collateral for letters of credit.

Trade Receivables

Trade receivables are recorded at the amount invoiced. We reduce accounts receivable by estimating an allowance for amounts that may become uncollectible in the future. Management determines the estimated allowance for uncollectible amounts based on their judgements in evaluating the aging of the receivables and the financial condition of our clients, which may be dependent on the type of client and the client’s current financial condition.

Real estate inventories

Real estate inventories include land, land development costs, construction and other costs. Real estate held for development and use is stated at cost, or when circumstances or events indicate that the real estate is impaired, at estimated fair value. Real estate held for sale is carried at the lower of cost or fair value less estimated costs to sell. Land, land development and indirect land development costs are accumulated by specific project and allocated to various units within that project using specific identification and allocation based upon the relative sales value, unit or area methods. Direct construction costs are assigned to units based on specific identification. Construction costs primarily include direct construction costs and capitalized field overhead. Other costs are comprised of fees, capitalized interest and real estate taxes. We also use our best estimate at the end of a reporting period to capitalize estimated construction and development costs. Costs incurred to sell real estate are capitalized to the extent they are reasonably expected to be recovered from the sale of the project and are tangible assets or services performed to obtain regulatory approval of sales. Other selling costs are expensed as incurred.

If the project is considered held for sale, it is valued at the lower of cost or fair value less estimated selling costs. The evaluation takes into consideration the current status of the property, carrying costs, costs of disposition, various restrictions and any other circumstances that may affect fair value including management’s plans for the property. For assets held for development and use, a write-down to estimated fair value is recorded when the net carrying value of the property exceeds its estimated undiscounted future cash flows. Estimated fair value is based on comparable sales of real estate in the normal course of business under existing and anticipated market conditions. These evaluations are made on a property-by-property basis whenever events or changes in circumstances indicate that the net book value may not be recoverable. As of December 31, 2017 and 2016, the Company did not have any development projects considered to be held for sale.

Capitalized interest and real estate taxes

Interest and real estate taxes incurred relating to the development of lots and parcels are capitalized to real estate inventories during the active development period, which generally commences when borrowings are used to acquire real estate assets and ends when the properties are substantially complete or the property becomes inactive. A project becomes inactive when development and construction activities have been suspended indefinitely. Interest is capitalized based on the interest rate applicable to specific borrowings or the weighted average of the rates applicable to other borrowings during the period. Interest and real estate taxes capitalized to real estate inventories are expensed as a component of cost of sales as related units are settled.

The following table is a summary of interest and real estate taxes incurred, capitalized and expensed for units settled:


	Twelve Months Ended December 31
	2017		2016
Total interest incurred and capitalized	$	4,223	$	3,227
Total real estate taxes incurred and capitalized		354		240

Total interest and real estate taxes incurred and capitalized	$	4,577	$	3,467

Interest expensed as a component of cost of sales	$	2,604	$	1,833
Real estate taxes expensed as a component of cost of sales		267		235

Interest and real estate taxes expensed as a component of cost of sales	$	2,871	$	2,068

The amount of interest from entity level borrowings that we are able to capitalize in accordance with Accounting Standards Codification (“ASC”) 835 is dependent upon the average accumulated expenditures that exceed project specific borrowings. Additionally, when a project becomes inactive, its interest, real estate taxes and indirect production overhead costs are no longer capitalized but rather expensed in the period they are incurred.

The following is a breakdown of the interest and real estate taxes expensed in the consolidated statement of operations for the periods presented:


	Twelve Months Ended December 31,
	2017		2016
Interest incurred and expensed from entity level borrowings	$	—	$	876
Interest incurred and expensed for inactive projects		41		5
Real estate taxes incurred and expensed for inactive projects		—		5

	$	41	$	886

Fixed assets

Fixed assets are carried at cost less accumulated depreciation and are depreciated on the straight-line method over their estimated useful lives as follows:


Furniture and fixtures			7 years
Office equipment and vehicles			5 years
Leasehold improvements			life of related lease
Computer equipment			3 years
Capitalized software			3 years

When assets are retired or otherwise disposed of, the cost and accumulated depreciation are removed from their separate accounts and any gain or loss on sale is reflected in operations. Expenditures for maintenance and repairs are charged to expense as incurred.

Goodwill and Intangible Assets

Goodwill represents the excess of the aggregate purchase price over the fair value of the net assets acquired in a business acquisition. Following an acquisition, we perform an analysis to value the acquired company’s tangible and identifiable intangible assets and liabilities. With respect to identifiable intangible assets, we consider backlog, non-compete agreements, client relations, trade names, patents and other assets. We amortize our intangible assets based on the period over which the contractual or economic benefits of the intangible assets are expected to be realized. We assess the recoverability of the unamortized balance of our intangible assets when indicators of impairment are present based on expected future profitability and undiscounted expected cash flows and their contribution to our overall operations. Should the review indicate that the carrying value is not fully recoverable, the excess of the carrying value over the fair value of the intangible assets would be recognized as an impairment loss.

We test our goodwill for impairment on an annual basis, and more frequently when an event occurs or circumstances indicate that the carrying value of the asset may not be recoverable. We believe the methodology that we use to review impairment of goodwill, which includes a significant amount of judgment and estimates, provides us with a reasonable basis to determine whether impairment has occurred.

We perform our annual goodwill impairment review during our fiscal fourth quarter and our first annual review will be performed in 2018. In addition, we regularly evaluate whether events and circumstances have occurred that may indicate a potential change in recoverability of goodwill. We perform interim goodwill impairment reviews between our annual reviews if certain events and circumstances have occurred, including a deterioration in general economic conditions, an increased competitive environment, a change in management, key personnel, strategy or customers, negative or declining cash flows, or a decline in actual or planned revenue or earnings compared with actual and projected results of relevant prior periods.

The impairment test for goodwill is a two-step process involving the comparison of the estimated fair value of each reporting unit to the reporting unit’s carrying value, including goodwill. We estimate the fair value of reporting units based on a comparison and weighting of the income approach, specifically the discounted cash flow method and the market approach, which estimates the fair value of our reporting units based upon comparable market prices and recent transactions and also validates the reasonableness of the multiples from the income approach. If the fair value of a reporting unit exceeds its carrying amount, the goodwill of the reporting unit is not considered impaired; therefore, the second step of the impairment test is unnecessary. If the carrying amount of a reporting unit exceeds its fair value, we perform the second step of the goodwill impairment test to measure the amount of impairment loss to be recorded. If our goodwill is impaired, we are required to record a non-cash charge that could have a material adverse effect on our consolidated financial statements.

Warranty reserve

Warranty reserves for units settled are established to cover potential costs for materials and labor with regard to warranty-type claims expected to arise during the typical one-year warranty period provided by the Company or within the two-year statutorily mandated structural warranty period for condominiums. Because the Company typically subcontracts its homebuilding work, subcontractors are required to provide the Company with an indemnity and a certificate of insurance prior to receiving payments for their work. Claims relating to workmanship and materials are generally the primary responsibility of the subcontractors and product manufacturers. The warranty reserve is established at the time of closing, and is calculated based upon historical warranty cost experience and current business factors. This reserve is an estimate and actual warranty costs could vary from these estimates. Variables used in the calculation of the reserve, as well as the adequacy of the reserve based on the number of homes still under warranty, are reviewed on a periodic basis. Warranty claims are directly charged to the reserve as they arise. The following table is a summary of warranty reserve activity, which is included in accounts payable and accrued liabilities:


	Years ended December 31,
	2017			2016
Balance at beginning of period	$	287		$	312
Additions		178			233
Releases and/or charges incurred		(207	)		(258	)

Balance at end of period	$	258		$	287

Revenue recognition

We recognize revenues and related profits or losses from the sale of residential properties and units, finished lots and land sales when closing has occurred, full payment is reasonably assured, title and possession of the property has transferred to the buyer and we have no significant continuing involvement in the property. Other revenues include revenue from land sales, rental revenue from leased multi-family units, which is recognized ratably over the terms of the respective leases and revenue from construction services which is recognized under the percentage-of-completion method.

We consider revenue to be from homebuilding when there is a structure built or being built on the lot at closing when cash receipt is reasonably assured and the title is transferred along with the risks and rewards of ownership. Sales of lots occur, and are included in other revenues, when we sell raw land or finished home sites in advance of any home construction.

Revenues generated through real estate professional services such as management and administrative support, environmental design, engineering and remediation are recognized when the services have been provided, the benefits of the services are transferred to the customer and our performance obligations are satisfied.

Advertising costs

The total amount of advertising costs charged to operations for the year ended December 31, 2017 was $568, of which $560 was charged to sales and marketing and $8 was charged to general and administrative expenses. The total amount of advertising costs charged to operations for the year ended December 31, 2016 was $586, of which $542 was charged to sales and marketing and $44 was charged to general and administrative expenses.

Stock compensation

As discussed in Note 14, the Company sponsors stock option plans and restricted stock award plans. The Company accounts for its share-based awards pursuant to Accounting Standards Codification (“ASC”) 718, Share Based Payments. ASC 718 requires all share-based payments to employees, including grants of employee stock options, to be recognized in the financial statements over the vesting period based on their fair values at the date of grant. For the year ended December 31, 2017, total stock based compensation cost was $405 of which, $346 was charged to expenses within ‘general and administrative’ and ‘cost of sales-other’ in the consolidated statement of operations, and $59 was capitalized to ‘Real estate inventories’. For the year ended December 31, 2016, total stock based compensation cost was $86 of which, $69 was charged to expenses within ‘general and administrative’ and ‘cost of sales-other’ in the consolidated statement of operations, and $17 was capitalized to ‘Real estate inventories’.

Income taxes

Income taxes are accounted for under the asset and liability method in accordance with ASC 740, Accounting for Income Taxes. Deferred tax assets and liabilities are recognized for future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect of a change in tax rates on the deferred tax assets and liabilities is recognized in income in the period that includes the enactment date. We provide a valuation allowance when we consider it “more likely than not” (greater than a 50% probability) that a deferred income tax asset will not be fully recovered. Adjustments to the valuation allowance are a component of the deferred income tax expense or benefit in the consolidated statement of operations.

The Tax Cuts and Jobs Act was enacted on December 22, 2017 with an effective date of January 1, 2018. The results of the Tax Act include, among others, a reduction to the corporate federal income tax rate from 35% to 21%, the repeal of the Alternative Minimum Tax, and the allowance of net operating losses arising in tax years ending after 2017 to be carried forward indefinitely, subject to limitation. The law introduces substantial changes to the Internal Revenue Code, with extensive implications for our federal current and deferred income tax provision. For further information, see Note 19 of the Notes to Consolidated Financial Statement included in this report.

Loss per share

The weighted average shares and share equivalents used to calculate basic and diluted loss per share for the years ended December 31, 2017 and 2016 are presented on the consolidated statement of operations. Restricted stock awards, stock options and warrants for the years ended December 31, 2017 and 2016 are included in the diluted loss per share calculation using the treasury stock method and average market prices during the periods, unless the restricted stock award, stock options and warrants would be anti-dilutive.

As a result of net losses for the years ended December 31, 2017 and 2016, diluted net loss per share excludes the effects of common stock equivalents consisting of restricted stock awards and warrants, which are anti-dilutive. The following number of shares have been excluded from consideration in the calculation of diluted net loss per share were:


	Twelve Months Ended December 31,
	2017		2016
Restricted stock awards		83		—
Warrants		11		—

		94		—

As of December 31, 2017 and 2016, warrants of 763 and 851, respectively; stock options of 666 and 404, respectively; and restricted stock awards of zero and 22, respectively; were excluded from the table above as the shares related were considered anti-dilutive as a result of the treasury method calculation.

Comprehensive income (loss)

For the years ended December 31, 2017 and 2016, comprehensive income (loss) equaled net income (loss); therefore, a separate statement of comprehensive income (loss) is not included in the consolidated financial statements.

Segment reporting

During 2017 and 2016, we operated our business through three segments: Homebuilding, Multi-family and Real Estate Services. We are focused on the Washington, D.C. market. In 2018, we revised our business strategy and transitioned our business operations to three operating segments; Homebuilding, Asset Management and Real Estate Services.

In our Homebuilding segment, we develop properties with the intent to sell as fee-simple properties or condominiums to individual buyers or to private or institutional investors. Our for-sale products are designed to attract first-time, early move-up, and secondary move-up buyers. We focus on products that we are able to offer for sale in the middle price points within the markets where we operate, avoiding the very low-end and high-end products.

In our Multi-family segment we focus on projects ranging from approximately 75 to 200 units in locations that are supply constrained with demonstrated demand for stabilized assets. We seek opportunities in the multi-family rental market where our experience and core capabilities can be leveraged. We will either position the assets for sale when completed or operate the asset within our own portfolio. Operating the asset for our own account affords us the flexibility of converting the units to condominiums in the future.

In our Real Estate Services segment we pursue projects in all aspects of real estate management including strategic planning, land development, entitlement, property management, sales and marketing, workout and turnaround strategies, financing and general construction. We are able to provide a wide range of construction management, environmental assessments and remediation services, and general contracting services to other property owners.

The following disclosure includes the Company’s three reportable segments of Homebuilding, Multi-family and Real Estate Services. Each of these segments operates within the Company’s single Washington, D.C. reportable geographic segment.


	Homebuilding			Multi-Family		Real Estate Services			Total
Twelve Months Ended December 31, 2017
Gross revenue	$	43,399		$	—	$	2,031		$	45,430
Gross profit		2,814			—		(268	)		2,546
Net (loss) income		(4,348	)		—		(430	)		(4,778	)
Total assets		47,474			—		3,684			51,158
Depreciation, amortization, and stock based compensation		409			—		177			586
Interest expense		—			—		41			41
Twelve Months Ended December 31, 2016
Gross revenue	$	40,696		$	—	$	884		$	41,580
Gross profit		2,460			—		457			2,917
Net (loss) income		(7,219	)		—		457			(6,762	)
Total assets		59,688			—		133			59,821
Depreciation, amortization, and stock based compensation		258			—		10			268
Interest expense		881			—		—			881

The Company allocates sales, marketing and general and administrative expenses to the individual segments based upon specifically allocable costs.

Use of estimates

The preparation of the financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts in the financial statements and accompanying notes. Actual results could differ from those estimates. Material estimates are utilized in the valuation of real estate inventories, valuation of deferred tax assets, analysis of goodwill impairment, valuation of equity-based compensation, capitalization of costs, consolidation of variable interest entities and warranty reserves.

Reclassifications

Certain amounts in the prior year consolidated financial statements have been reclassified to the current year presentation. The impact of the reclassifications made to prior year amounts is not material and did not affect net loss.

Recent accounting pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers” (“ASU 2014-09”). ASU 2014-09 provides a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. ASU No. 2014-09 will require an entity to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued ASU 2015-14, which deferred the effective date of ASU 2014-09 for one year, which would make the guidance effective for the Company’s first fiscal year beginning after December 15, 2017. Entities may use either the full retrospective or modified retrospective methods of adoption. The Company has completed its evaluation of the impact of the adoption of ASU 2014-09 for its homebuilding and construction services revenue streams, and believes that there will be no material impact to its consolidated financial statements, except enhanced disclosure regarding revenue recognition, including disclosures of revenue streams, performance obligations, variable consideration and the related judgments and estimates necessary to apply the new standard. The Company adopted using the modified retrospective method effective January 1, 2018 and anticipates completing the implementation in connection with its first quarter 2018 interim financial statements.

In February 2016, the FASB issued ASU 2016-02, “Leases”. The core principle of the standard is that a lessee should recognize the assets and liabilities that arise from leases. A lessee should recognize in its statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. ASU 2016-02 is effective for public companies for annual reporting periods beginning after December 15, 2018 and interim periods within those fiscal years. Early adoption is permitted. We are currently evaluating the impact this new standard will have on our consolidated financial statements.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230), Classification of Certain Cash Receipts and Cash Payments (“ASU 2016-15”). ASU 2016-15 reduces the existing diversity in practice in financial reporting across all industries by clarifying certain existing principles in ASC 230, Statement of Cash Flows, including providing additional guidance on how and what an entity should consider in determining the classification of certain cash flows. Additionally, in November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230), Restricted Cash (“ASU 2016-18”). ASU 2016-18 clarifies certain existing principles in ASC 230, Statement of Cash Flows, including providing additional guidance related to transfers between cash and restricted cash and how entities present, in their statement of cash flows, the cash receipts and cash payments that directly affect the restricted cash accounts. Both ASU 2016-15 and ASU 2016-18 will be effective for the Company’s fiscal year beginning January 1, 2018 and subsequent interim periods. The adoption of ASU 2016-15 will modify the Company’s current disclosures and reclassifications within the consolidated statement of cash flows but is not expected to have a material effect on the Company’s consolidated financial statements. The adoption of ASU 2016-18 will result in restricted cash of $1,141 being included with cash.

In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805), Clarifying the Definition of a Business”, which provides a more robust framework to use in determining when a set of assets and activities (collectively referred to as a “set”) is a business. The standard requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. ASU 2017-01 is effective for public business entities for annual periods beginning after December 15, 2017, including interim periods within those periods. The amendments in ASU 2017-01 should be applied prospectively on or after the effective date. We do not expect the adoption of ASU 2017-01 to have a material effect on our consolidated financial statements.

In January 2017, the FASB issued ASU 2017-04, “Simplifying the Test for Goodwill Impairment,” which removes Step 2 from the goodwill impairment test and replaces the qualitative assessment. Impairment will be measured using the difference between the carrying amount and the fair value of the reporting unit. Under this revised guidance, failing Step 1 will always result in a goodwill impairment. The amendments in this update should be applied prospectively for annual and interim periods in fiscal years beginning after December 15, 2019. Early adoption is permitted for goodwill impairment tests with measurement dates after January 1, 2017. We do not expect the adoption of ASU 2017-04 to have a material effect on our consolidated financial statements.

In May 2017, the FASB issued ASU 2017-09, “Compensation—Stock Compensation (Topic 718)—Scope of Modification Accounting.” The amendments in this update provide guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting. ASU 2017-09 is effective for fiscal years, including interim periods within those fiscal years, beginning after December 15, 2017. The amendments in this update should be applied prospectively to an award modified on or after the adoption date. We do not expect the adoption of ASU 2017-09 to have a material effect on our consolidated financial statements.

Other accounting pronouncements issued or effective during the year ended December 31, 2017 are not applicable to us or are not anticipated to have a material effect on our consolidated financial statements.

Trade Receivables

12 Months Ended

Dec. 31, 2017

Text Block [Abstract]

Trade Receivables

3. TRADE RECEIVABLES

Trade receivables include amounts due from real estate services, home sales transactions and amounts due from related parties with whom we have service arrangements.


	December 31,		December 31,
	2017		2016
Trade	$	432	$	—
Due from Settlement Attorneys		—		432
Related parties		145		132
Other		59		49

		636		613
Less : allowance for doubtful accounts		—		—

	$	636	$	613

Real Estate Inventories

12 Months Ended

Dec. 31, 2017

Real Estate [Abstract]

Real Estate Inventories

4. REAL ESTATE INVENTORIES

For assets held for development and use, a write-down to estimated fair value is recorded when the net carrying value of the property exceeds its estimated undiscounted future cash flows. Estimated fair value is based on comparable sales of real estate in the normal course of business under existing and anticipated market conditions. These evaluations are made on a property-by-property basis whenever events or changes in circumstances indicate that the net book value may not be recoverable.

If the project is considered held for sale, it is valued at the lower of cost or fair value less estimated selling costs. The evaluation takes into consideration the current status of the property, carrying costs, costs of disposition, various restrictions and any other circumstances that may affect fair value including management’s plans for the property. At December 31, 2017 and 2016, the Company had no projects classified as held for sale. During 2017 and 2016, as a result of our impairment analysis, the Company wrote off $0.5 million and $2.4 million, respectively, in feasibility, site securing, predevelopment, design, carry costs and related costs for certain of our communities in the Washington, D.C. metropolitan area due to unsuccessful negotiations and changes in market conditions. Additionally, during 2016, the Company, through its subsidiaries, and the land seller of a community in the Washington, D.C. area entered into a settlement agreement, and the Company received a refund of $0.7 million representing a portion of the deposit deemed impaired during the Company’s impairment analysis in 2015.

After impairments and write-offs, real estate held for development and sale consists of the following:


	December 31, 2017		December 31, 2016
Land and land development costs	$	24,304	$	33,355
Cost of construction (including capitalized interest and real estate taxes)		20,407		16,487

	$	44,711	$	49,842

Fixed Assets, Net

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Fixed Assets, Net

5. FIXED ASSETS, NET

Fixed assets consist of the following:


	December 31, 2017			December 31, 2016
Computer equipment and capitalized software	$	731		$	704
Furniture and fixtures		51			52
Office equipment		209			45
Vehicles		42			—

		1,033			801
Less : accumulated depreciation		(724	)		(546	)

	$	309		$	255

Depreciation and amortization expense, included in ‘general and administrative’ in the accompanying consolidated statements of operations, amounted to $178 and $181 for the years ended December 31, 2017 and 2016, respectively.

Note Receivable	12 Months Ended
Note Receivable	Dec. 31, 2017
Receivables [Abstract]
Note Receivable	6. NOTE RECEIVABLE The Company originated a note receivable to a third party in the amount of $180 during 2014. This note has a maturity date of September 2, 2019 and is payable in monthly installments of principal and interest. The note bears a fixed interest rate of 6% per annum. As of December 31, 2017 and 2016, the outstanding balance of the note was $66 and $103, respectively, and was included within ‘Other assets’ in the accompanying consolidated balance sheets, the interest income of $5 and $7 for the years ended December 31, 2017 and 2016, respectively, was included in ‘Other income, net’ in the consolidated statements of operations.

- Definition

The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.

+ References + Details

Goodwill And Intangibles

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill And Intangibles

7. GOODWILL AND INTANGIBLES

On July 17, 2017, JK Environmental Services, LLC, (“JK”) an entity wholly owned by CDS Capital Management, L.C., a subsidiary of Comstock, purchased all of the business assets of Monridge Environmental, LLC for $2.3 million. JK has its principal office located in Conshohocken, Pennsylvania, and operates in Maryland, Pennsylvania, New Jersey, and Delaware. JK operates as an environmental services company, providing consulting, remediation, and other environmental services.

Based on an evaluation of the provisions of Accounting Standards Codification Topic 805, Business Combinations, (“ASC 805”), JK Environmental Services, LLC was determined to be the acquirer for accounting purposes. The table below summarizes the purchase price allocation based on the estimated fair value of net assets acquired at the date of acquisition.


ASSETS
Net Working Capital	$	141
Net Fixed Assets		180
Intangible Assets		268
Goodwill		1,702

Total Purchase Price	$	2,291

Goodwill represents the excess of the purchase price over the fair value of assets acquired and liabilities assumed, and it is not deductible for income tax purposes. As of the acquisition date, goodwill consisted primarily of synergies resulting from the combination, expected expanded opportunities for growth and production, and savings in corporate overhead costs.

Intangible assets include customer relationships which has an amortization period of four years.


	December 31, 2017
Goodwill	$	1,702
Intangibles		268

		1,970
Less : accumulated amortization		(31	)

	$	1,939

As of December 31, 2017, the future estimated amortization expense related to these intangible assets was:


	Amortization Expense
2018	$	67
2019		67
2020		67
2021		36
2022 and thereafter		—

Total	$	237

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

Other Assets

12 Months Ended

Dec. 31, 2017

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Other Assets

8. OTHER ASSETS

Other assets consist of the following:


	December 31, 2017			December 31, 2016
Prepaid project costs	$	—		$	989
Deferred financing cost—line of credit		—			1,286
Bonds and escrow deposits		380			221
Other		905			846

		1,285			3,342
Less : accumulated amortization		(669	)		(1,230	)

	$	616		$	2,112

Accounts Payable and Accrued Liabilities

12 Months Ended

Dec. 31, 2017

Payables and Accruals [Abstract]

Accounts Payable and Accrued Liabilities

9. ACCOUNTS PAYABLE AND ACCRUED LIABILITIES

Accounts payable and accrued liabilities consist of the following:


	December 31, 2017		December 31, 2016
Trade and accrued payables	$	8,279	$	6,925
Warranty		258		287
Customer deposits		575		497
Other		4		12

	$	9,116	$	7,721

Debt

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Debt

10. DEBT

Notes payable consisted of the following:


	December 31, 2017			December 31, 2016
Construction revolvers	$	7,337		$	6,429
Development and acquisition notes		11,584			16,278
Mezzanine notes		1,244			1,424
Line of credit		2,131			2,929
Secured-other		1,069			—

Total secured notes		23,365			27,060
Deferred financing charges, net of amortization		(150	)		(133	)

Net secured notes		23,215			26,927
Unsecured financing, net of unamortized deferred financing charges of $55 and $121		1,285			911
Notes payable, unsecured, net of $2.0 and $2.1 million discount and unamortized deferred financing charges, respectively		14,893			15,866

Total notes payable	$	39,393		$	43,704

As of December 31, 2017, maturities of our borrowings are as follows:


2018	$	33,510
2019		4,080
2020		124
2021		—
2022 and thereafter		1,679

Total	$	39,393

We are in active discussions with our lenders with respect to the 2018 maturities and are seeking extensions and modifications to the credit facilities and loans as necessary. See Note 22 for further discussion on repayments and extensions subsequent to December 31, 2017.

Construction, development and mezzanine debt—secured

The Company enters into secured acquisition and development loan agreements to purchase and develop land parcels. In addition, the Company enters into secured construction loan agreements for the construction of its real estate inventories. The loans are repaid with proceeds from home closings based upon a specific release price, as defined in each respective loan agreement.

As of December 31, 2017 and 2016, the Company had secured construction revolving credit facilities with a maximum loan commitment of $24.8 million and $26.6 million, respectively. The Company may borrow under these facilities to fund its homebuilding activities. The amount the Company may borrow is subject to applicable borrowing base provisions and the number of units under construction, which may also limit the amount available or outstanding under the facilities. The facilities are secured by deeds of trust on the real property and improvements thereon, and the borrowings are repaid with the net proceeds from the closings of homes sold, subject to a minimum release price. As of December 31, 2017 and 2016, the Company had approximately $17.5 million and $20.2 million, respectively, of unused loan commitments. The Company had $7.3 million and $6.4 million of outstanding construction borrowings as of December 31, 2017 and 2016, respectively. Interest rates charged under these facilities include the London Interbank Offered Rate (“LIBOR”) and prime rate pricing options, subject to minimum interest rate floors. At December 31, 2017 and 2016, the weighted average interest rate on the Company’s outstanding construction revolving facility was 4.7% and 4.6%, respectively. The secured debt facilities have maturity dates ranging from January 2018 to February 2019, including extensions subject to certain conditions. Subsequent to year end, during the first quarter of 2018, $7.4 million of the outstanding construction revolving credit facilities at December 31, 2017 matured therefore, the Company secured extensions for these facilities. See Note 22 for further discussions on the extensions.

As of December 31, 2017 and 2016, the Company had approximately $28.5 million and $27.8 million, respectively, of aggregate acquisition and development maximum loan commitments of which $11.6 million and $16.3 million, respectively, was outstanding. The acquisition and development loans have maturity dates ranging from January 2018 to March 2019, including auto extension subject to certain conditions and bear interest at a rate based on LIBOR and Prime Rate pricing options, with interest rate floors ranging from 4.5% to 12.0%. As of December 31, 2017 and 2016, the weighted average interest rates were 7.1% per annum and 5.2% per annum, respectively.

During 2017 and 2016, the Company had one mezzanine loan that is being used to finance the development of the Momentum | Shady Grove project. The maximum principal commitment amount of this loan was $1.1 million, of which $1.2 and $1.4 million, respectively, of principal and accrued interest was outstanding at December 31, 2017 and 2016. This financing carries an annual interest rate of 12% of which 6% is paid on a monthly basis with the remaining 6% being accrued and paid at maturity. This financing has a maturity date of June 30, 2018 and is guaranteed by the Company and our Chief Executive Officer.

Line of credit – secured

At December 31, 2017 and 2016, the Company had a secured revolving line of credit amounting to $3.0 million, of which $2.1 million and $2.9 million was outstanding at December 31, 2017 and 2016, respectively. This line of credit is secured by the first priority security interest in the Company’s wholly owned subsidiaries in the Washington, D.C., metropolitan area and is used to finance the predevelopment related expenses and deposits for current and future projects. This line of credit bears a variable interest rate tied to one-month LIBOR plus 3.25% per annum, with an interest rate floor of 5.0%. At December 31, 2017 and 2016, the interest rate was 5.00%. This line of credit also calls for the Company to adhere to financial covenants such as, minimum net worth and minimum liquidity, measured quarterly and minimum EBITDA, as defined in the agreement, measured on a twelve month basis. The Company obtained a waiver from the financial institution for not meeting the minimum EBITDA measure and the minimum liquidity requirement as of December 31, 2017, but was in compliance with the minimum net worth requirement as dictated by the line of credit agreement as of December 31, 2017. This line of credit is guaranteed by our Chief Executive Officer. This line of credit matures on June 30, 2018.

Secured – other

As of December 31, 2017, the Company had one secured loan related to the newly created entity, JK, with an outstanding balance of $1.1 million. This financing carries a fixed interest rate of 6.0%, and has a maturity date of October 17, 2022. This financing is secured by the assets of JK and is guaranteed by our Chief Executive Officer.

Unsecured notes

At December 31, 2017 and December 31, 2016, the Company had $0.6 million and $1.0 million, respectively, outstanding to a bank under a 10-year unsecured note maturing December 28, 2018. Interest is charged on this financing at LIBOR plus 2.2%. At December 31, 2017 and 2016, the interest rate was 3.6% and 2.9%, respectively. The Company is required to make monthly principal and interest payments through maturity.

As of December 31, 2017, the Company had two unsecured seller-financed promissory notes with outstanding balances totaling $0.7 million. The first note, in the amount of $0.1 million, carries an annual interest rate of the prime rate plus 5%. This financing has a maturity date of February 27, 2020, and is guaranteed by our Chief Executive Officer. As of December 31, 2017, the interest rate was 9.5%. The second note, resulting from the newly created entity, JK, on July 17, 2017, has an outstanding balance of $0.6 million as of December 31, 2017. This financing carries an annual interest rate of LIBOR plus 3% and has a maturity date of July 17, 2022. At December 31, 2017, the interest rate was 4.56%. See Note 7 for further discussion of the business acquisition.

Notes payable to affiliate—unsecured

Comstock Growth Fund

On October 17, 2014, Comstock Growth Fund (“CGF”) entered into a subscription agreement with Comstock Development Services (“CDS”), pursuant to which CDS purchased membership interests in CGF for a principal amount of $10.0 million (the “CGF Private Placement”). Other purchasers who subsequently purchased interests in the private placement included members of the Company’s management and board of directors and other third party accredited investors for an additional principal amount of $6.2 million.

On October 17, 2014, the Company entered into an unsecured promissory note with CGF whereby CGF made a loan to the Company in the initial principal amount of $10.0 million and a maximum amount available for borrowing of up to $20.0 million with a three year term (the “Original Promissory Note”). On December 18, 2014, the loan agreement was amended and restated to provide for a maximum capacity of $25.0 million. The loan bears interest at a floating rate based on the 30 day LIBOR plus 9.75% per annum with a 10% floor per annum. Interest payments will be made monthly in arrears. There is a principal curtailment requirement of 10% annually based on the average outstanding balance for the prior year. The Company is the administrative manager of CGF but does not own any membership interests. The Company had approximately $11.3 million and $12.6 million of outstanding borrowings under the CGF loan, net of discounts, as of December 31, 2017 and 2016, respectively. As of December 31, 2017, and 2016, the interest rate was 11.9% and 10.4% per annum, respectively. For the years ended December 31, 2017 and 2016, the Company made interest payments of $1.5 million and $1.6 million, respectively. During the years ended December 31, 2017 and 2016, the Company made principal payments to CGF of $1.5 million and $1.6 million, respectively. Subsequent to year end, the Company secured an extension on the CGF loan, providing for a new maturity date of April 16, 2019. See Note 22 for further discussion on the extension.

Comstock Growth Fund II

On December 29, 2015, the Company entered into a revolving line of credit promissory note with Comstock Growth Fund II (“CGF II”) whereby CGF II made a loan to the Company in the initial principal amount of $5.0 million and a maximum amount available for borrowing of up to $10.0 million with a two-year term, which may be extended an additional year. The interest rate is 10% per annum, and interest payments will be accrued and paid in kind monthly for the first year, and then paid current monthly in arrears beginning December 31, 2016. The funds obtained from the loan are being used by the Company (i) to capitalize the Company’s current and future development pipeline, (ii) to repay all or a portion of the Company’s prior private placements, and (iii) for general corporate purposes. On December 29, 2017, the CGF II loan was extended one year to December 29, 2018. As of December 31, 2017 and December 31, 2016, $3.6 million and $3.3 million, respectively, was outstanding in principal and accrued interest under the CGF II loan.

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	11. COMMITMENTS AND CONTINGENCIES *Litigation* Currently, we are not subject to any material legal proceedings. From time to time, we are named as a defendant in legal actions arising from our normal business activities. Although we cannot accurately predict the amount of our liability, if any, that could arise with respect to legal actions pending against us, we do not expect that any such liability will have a material adverse effect on our financial position, operating results or cash flows. We have obtained insurance coverage, rights to indemnification, or where appropriate, have established reserves in connection with these legal proceedings. *Letters of credit, performance bonds and compensating balances* The Company has commitments as a result of contracts entered into with certain third parties, primarily local governmental authorities, to meet certain performance criteria as outlined in such contracts. The Company is required to issue letters of credit and performance bonds to these third parties as a way of ensuring that the commitments entered into are met. These letters of credit and performance bonds issued in favor of the Company and/or its subsidiaries mature on a revolving basis, and if called into default, would be deemed material if assessed against the Company and/or its subsidiaries for the full amounts claimed. In some circumstances, we have negotiated with our lenders in connection with foreclosure agreements for the lender to assume certain liabilities with respect to the letters of credit and performance bonds. We cannot accurately predict the amount of any liability that could be imposed upon the Company with respect to maturing or defaulted letters of credit or performance bonds. At December 31, 2017 and 2016, the Company had issued $1.1 million in letters of credit. At December 31, 2017 and 2016, the Company had $4.0 million and $4.2 million in performance and payment bonds, respectively, outstanding to third parties. No amounts have been drawn against these letters of credit or performance bonds. We are required to maintain compensating balances in escrow accounts as collateral for certain letters of credit, which are funded upon settlement and release of units. The cash contained within these escrow accounts is subject to withdrawal and usage restrictions. As of December 31, 2017 and 2016, we had approximately $1.0 million and $0.8 million, respectively, in these escrow accounts, which are included in ‘Restricted cash’ in the consolidated balance sheets.

Fair Value Disclosures

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Fair Value Disclosures

12. FAIR VALUE DISCLOSURES

ASC 820, Fair Value Measurement, establishes a framework for measuring fair value, expands disclosures regarding fair value measurements and defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. ASC 820 specifies a hierarchy of valuation techniques based on whether the inputs to a fair value measurement are considered to be observable or unobservable in a marketplace. The three measurement input levels for determining fair value are as follows

•

Fair values determined by Level 1 inputs utilize quoted prices in active markets for identical assets or liabilities that the Company has the ability to access.

•

Fair values determined by Level 2 inputs utilize inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices that are observable for the asset or liability, such as interest rates and yield curves that are observable at commonly quoted intervals.

•

Level 3 inputs are unobservable inputs for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. An asset’s or liability’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement.

The carrying amounts reported in the consolidated balance sheets for cash and cash equivalents, accounts receivable, and accounts payable are reasonable estimates of their fair values based on their short maturities.

The fair value of fixed and floating rate debt is based on unobservable inputs (Level 3 inputs). The fair value of the fixed and floating rate debt was estimated using a discounted cash flow analysis on the blended borrower rates currently available to the Company for loans with similar terms. The following table summarizes the fair value of fixed and floating rate debt and the corresponding carrying value of fixed and floating rate debt as of:


	December 31, 2017		December 31, 2016
Carrying amount	$	39,393	$	43,704
Fair value	$	38,899	$	44,986

Fair value estimates are made at a specific point in time, based on relevant market information about the financial instruments. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore, cannot be determined with precision. Changes in assumptions, such as an acceleration of amounts due and payable, could significantly affect the estimates.

The Company may also value its non-financial assets and liabilities, including items such as real estate inventories and long-lived assets, at fair value on a non-recurring basis if it is determined that impairment has occurred. Such fair value measurements use significant unobservable inputs and are classified as Level 3. See Note 2 for further discussion of the valuation techniques and inputs used.

During 2017 and 2016, as a result of our impairment analysis, the Company wrote off $0.5 million and $2.4 million, respectively, in feasibility, site securing, predevelopment, design, carry costs and related costs for certain of our communities in the Washington, D.C. metropolitan area due to unsuccessful negotiations and changes in market conditions. Additionally, during 2016, the Company, through its subsidiaries, and the land seller of a community in the Washington, D.C. area entered into a settlement agreement, and the Company received a refund of $0.7 million representing a portion of the deposit deemed impaired during the Company’s impairment analysis in 2015.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Restricted Stock, Stock Options and Other Stock Plans

12 Months Ended

Dec. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Restricted Stock, Stock Options and Other Stock Plans

14. RESTRICTED STOCK, STOCK OPTIONS AND OTHER STOCK PLANS

On December 14, 2004, the Company adopted the 2004 Long-Term Compensation Plan (the “Plan”). The Plan provides for the issuance of stock options, stock appreciation rights, or SARs, restricted stock, deferred stock, dividend equivalents, bonus stock and awards in lieu of cash compensation, other stock-based awards and performance awards. Any shares issued under the Plan typically vest over service periods that range from one to five years. Stock options issued under the plan expire 10 years from the date they are granted.

The Plan authorized 1.0 million shares of our Class A Common Stock with an automatic annual increase on January 1 of each successive year of the lesser of (i) 3% of the Class A common stock outstanding or (ii) 107 shares. As of December 31, 2017 and 2016, there were 0.4 million and 0.3 million shares, respectively, available for issuance under the Plan (as amended).

The fair value of each option award is calculated on the date of grant using the Black-Scholes option pricing model and certain subjective assumptions. Expected volatilities are calculated based on our historical trading activities. We estimate forfeitures using a weighted average historical forfeiture rate. Our estimates of forfeitures will be adjusted over the requisite service period based on the extent to which actual forfeitures differ, or are expected to differ, from their estimate. The risk-free rate for the periods is based on the U.S. Treasury rates in effect at the time of grant. The expected term of options is based on the simplified method which assumes that the option will be exercised midway between the vesting date and the contractual term of the option. The Company is able to use the simplified method as the options qualify as “plain vanilla” options as defined by ASC 718, Stock Compensation.

The following table summarizes the assumptions used to calculate the fair value of options during 2017. No options were granted in 2016.


	2017
Weighted average fair value of options granted	$	1.20
Dividend yields		—
Expected volatility		70.60%-79.40	%
Weighted average expected volatility		72.73	%
Risk free interest rates		2.15	%
Weighted average expected term (in years)		6.25

The following table summarizes information about stock option activity:


	Shares			Weighted Average Exercise Price		Aggregate Intrinsic Value
Outstanding at January 1, 2016		174		$	8.39
Granted		—			—
Exercised		—			—
Forfeited or Expired		(62	)		8.82

Outstanding at December 31, 2016		112		$	8.16
Granted		345			1.89
Exercised		—			—
Forfeited or Expired		(21	)		7.06

Outstanding at December 31, 2017		436		$	3.25	$	—

Exercisable at December 31, 2017		86		$	8.46	$	—

As of December 31, 2017 and 2016, the weighted-average remaining contractual term of unexercised stock options was 8.5 years and 4.8 years, respectively.

A summary of the Company’s restricted share activity is presented below:


	Shares			Weighted Average Grant Date Fair Value
Restricted nonvested at January 1, 2016		12		$	12.42
Granted		20			1.89
Vested		(12	)		12.42
Forfeited or Expired		—			—

Outstanding at December 31, 2016		20		$	1.89
Granted		245			2.13
Vested		(22	)		1.88
Forfeited or Expired		—			—

Nonvested at December 31, 2017		243		$	2.16

As of December 31, 2017 and 2016, there was $0.6 million and $0.1 million, respectively, of unrecognized compensation cost related to stock options and restricted stock issuances granted under the Plan. The Company intends to issue new shares of its common stock upon vesting of restricted stock grants or the exercise of stock options.

In November 2014, our board of directors approved a share repurchase program authorizing the Company to repurchase up to 429 thousand shares of our Class A common stock in one or more open market or privately negotiated transactions depending on market price and other factors.

At December 31, 2017 and 2016, 404 thousand shares of our Class A common stock remain available for repurchase pursuant to our share repurchase agreement.

Consolidation of Variable Interest Entities	12 Months Ended
Consolidation of Variable Interest Entities	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidation of Variable Interest Entities	15. CONSOLIDATION OF VARIABLE INTEREST ENTITIES GAAP requires a VIE to be consolidated by the company that is the primary beneficiary. The primary beneficiary of a VIE is the entity that has both of the following characteristics: (a) the power to direct the activities of a VIE that most significantly impact the VIE’s economic performance and (b) the obligation to absorb losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. Entities determined to be VIEs, for which we are not the primary beneficiary, are accounted for under the equity method. Comstock’s variable interests in VIEs may be in the form of (1) equity ownership, (2) contracts to purchase assets and/or (3) loans provided to and or guaranteed for a VIE. We examine specific criteria and use judgment when determining if Comstock is the primary beneficiary of a VIE. Factors considered in determining whether we are the primary beneficiary include risk and reward sharing, experience and financial condition of other partner(s), voting rights, involvement in day-to-day capital and operating decisions and contracts to purchase assets from VIEs. *Consolidated Real Estate Inventories* Included within the Company’s real estate inventories at December 31, 2017 and 2016 are several projects that are determined to be VIEs. These entities have been established to own and operate real estate property and were deemed VIEs primarily based on the fact that the equity investment at risk is not sufficient to permit the entities to finance their activities without additional financial support. The Company determined that it was the primary beneficiary of these VIEs as a result of its majority voting and complete operational control of the entities. On August 23, 2012, the Company formed New Hampshire Ave. Ventures, LLC, a joint venture of its subsidiary, Comstock Ventures XVI, L.C, and 6000 New Hampshire Avenue, LLC, for the purpose of acquiring, developing and constructing a 111-unit project (the “NHA Project”) in Washington, D.C. The Company evaluated the joint venture and determined that the equity investment at risk is not sufficient to permit the entity to finance its activities without additional financial support. The Company determined that it was the primary beneficiary of the VIE as a result of its complete operational control of the activities that most significantly impact the economic performance and obligation to absorb losses, or receive benefits. The Company contributed its ownership interest in Comstock Ventures XVI, L.C. to Comstock Investors VII, L.C. (“Comstock VII”) on March 13, 2013. During 2016, New Hampshire Ave. Ventures, LLC distributed $1.9 million to its non-controlling interest member, 6000 New Hampshire Avenue, LLC. No such distributions were made during 2017. In December 2013, Comstock Investors VIII, L.C. (“Comstock VIII”) entered into subscription agreements with certain accredited investors (“Comstock VIII Class B Members”), pursuant to which Comstock VIII Class B Members purchased membership interests in Comstock VIII for an aggregate amount of $4.0 million (the “Comstock VIII Private Placement”). In connection with the Comstock VIII Private Placement, the Company issued 15 warrants for the purchase of shares of the Company’s Class A common stock to the non-affiliated accredited investors, having an aggregate fair value of $131. Comstock VIII Class B Members included unrelated third-party accredited investors along with members of the Company’s board of directors and the Company’s former Chief Operating Officer and the former Chief Financial Officer. The Comstock VIII Class B Members are entitled to a cumulative, preferred return of 20% per annum, compounded annually on their capital account balances. The Company has the right to repurchase the interests of the Comstock VIII Class B Members at any time, provided that (i) all of the Comstock VIII Class B Members’ interests are acquired, (ii) the purchase is made in cash and (iii) the purchase price equals the Comstock VIII Class B Members’ capital accounts plus an amount necessary to cause the preferred return to equal a cumulative cash on cash return equal to 20% per annum. The proceeds from the Comstock VIII Private Placement have been used for the construction of the following projects: The Townes at HallCrest in Sterling, Virginia consisting of 42 townhome units, and Townes at Maxwell Square Condominium in Frederick, Maryland consisting of 45 townhome condominium units (collectively, the “Investor VIII Projects”). The Company evaluated Comstock VIII and determined that the equity investment at risk is not sufficient to permit the entity to finance its activities without additional financial support and the Company was the primary beneficiary as a result of its complete operational control of the activities that most significantly impact the economic performance and its obligation to absorb losses, or receive benefits accordingly, the Company consolidates this entity. During 2016 the Company paid distributions in the amount of $3.1 million, to the Comstock VIII Class B Members. In January 2017, the Company fully redeemed the remaining equity interest of Class B Members in Comstock VIII after paying $1.9 million in distributions. In June 2015, Comstock Investors IX, L.C. (“Comstock IX”) entered into subscription agreements with third-party accredited investors (“Comstock IX Class B Members”), pursuant to which Comstock IX Class B Members purchased membership interests in Comstock IX for an aggregate amount of $2.5 million (the “Comstock IX Private Placement”). The Comstock IX Class B Members are entitled to a cumulative, preferred return of 20% per annum, compounded annually on their capital account balances. The Company has the right to repurchase the interests of the Comstock IX Class B Members at any time, provided that (i) all of the Comstock IX Class B Members’ interests are acquired, (ii) the purchase is made in cash and (iii) the purchase price equals the Comstock IX Class B Members’ capital accounts plus any amount necessary to cause the preferred return to equal a cumulative cash on cash return equal to 20% per annum. The Company evaluated Comstock IX and determined that the equity investment at risk is not sufficient to permit the entity to finance its activities without additional financial support and the Company was the primary beneficiary as a result of its complete operational control of the activities that most significantly impact the economic performance and its obligation to absorb losses or receive benefits. Accordingly, the Company consolidates this entity. In October 2017, the Company fully redeemed the remaining equity interest of Class B Members in Comstock IX after paying $3.5 million in distributions. No such distributions were made in 2016. In August 2016, Comstock Investors X, L.C. (“Comstock X”) entered into a subscription agreement with an accredited investor (“Comstock X Class B Member”), pursuant to which the Comstock X Class B Member purchased membership interests in Comstock X for an initial amount of $5.0 million, which is part of an aggregate capital raise of $14.5 million (the “Comstock X Private Placement”). The Comstock X Class B Member is Comstock Development Services, LC (“CDS”), an entity wholly owned by Christopher Clemente, our Chief Executive Officer. In October 2016, the Comstock X Class B Member purchased additional interests in the Comstock X Private Placement in an amount of $9.5 million resulting in an aggregate subscription amount of $14.5 million. In connection with the Comstock X Private Placement, the Company issued a total of 150 warrants for the purchase of shares of the Company’s Class A common stock, having an aggregate fair value of $258. The Comstock X Member is entitled to a cumulative, preferred return of 6% per annum, compounded annually on the capital account balance. The Company has the right to repurchase the interest of the Comstock X Class B Member at any time, provided that (i) all of the Comstock X Class B Members’ interest is acquired, (ii) the purchase is made in cash and (iii) the purchase price equals the Comstock X Class B Members’ capital account plus accrued priority return. In October 2017, the Operating Agreement for Comstock X was amended to increase the maximum capital raise to $19.5 million. Additionally, in October 2017, Comstock X received proceeds of $5.0 million under the amended Operating Agreement to be used for the planned construction of the Company’s Totten Mews, Towns at 1333, Richmond Station, and Marwood East projects. As part of this additional contribution, 50,000 warrants for the purchase of the Company’s Class A common stock, having an aggregate fair value of $258. The Company evaluated Comstock X and determined that the equity investment at risk is not sufficient to permit the entity to finance its activities without additional financial support and the Company was the primary beneficiary of the VIE as a result of its complete operational control of the activities that most significantly impact the economic performance and its obligation to absorb losses, or receive benefits. Accordingly, the Company consolidates this entity. During 2017, the Company distributed $1.0 million to its non-controlling interest member. No such distributions were made during 2016. At December 31, 2017 and December 31, 2016, the distributions and contributions for the VIEs discussed above are included within the ‘non-controlling interest’ classification in the consolidated statement of changes in stockholder’s equity. At December 31, 2017 and December 31, 2016, total assets of these VIEs were approximately $30.6 million and $38.1 million, respectively, and total liabilities were approximately $15.9 million and $18.5 million, respectively. The classification of these assets is primarily within ‘real estate inventories’ and the classification of liabilities are primarily within ‘notes payable – secured by real estate inventories’ and ‘accounts payable and accrued liabilities’ in the consolidated balance sheets. *Land purchase options* The Company typically acquires land for development at market prices under fixed price purchase agreements. The purchase agreements require deposits that may be forfeited if the Company fails to perform under the agreements. The deposits required under the purchase agreements are in the form of cash or letters of credit in varying amounts. The Company may, at its option, choose for any reason and at any time not to perform under these purchase agreements by delivering notice of its intent not to acquire the land under contract. The Company’s sole legal obligation and economic loss for failure to perform under these purchase agreements is typically limited to the amount of the deposit pursuant to the liquidated damages provision contained within the purchase agreement. As a result, none of the creditors of any of the entities with which the Company enters into forward fixed price purchase agreements have recourse to the general credit of the Company. The Company does not share in an allocation of either the profit earned or loss incurred by any of these entities with which the Company has fixed price purchase agreements. The Company has concluded that whenever it options land or lots from an entity and pays a significant non-refundable deposit as described above, a variable interest entity is created under the provisions of ASC 810-10, Consolidation. This is because the Company has been deemed to have provided subordinated financial support, which creates a variable interest which limits the equity holder’s returns and may absorb some or all of an entity’s expected theoretical losses if they occur. The Company, therefore, examines the entities with which it has fixed price purchase agreements for possible consolidation by the Company under the provision of ASC 810-10. The Company does not have any contractual or ownership interests in the entities with which it contracts to buy the land. The Company concluded that it does not have the power to direct the activities that most significantly impact the economic performance of the VIEs, including the power to site plan and engineer the developments, finance the parcels under option contract, and develop the raw parcels under option contract into finished lots. The third party retains these rights under the fixed purchase price agreements until title is transferred to the Company upon settlement of the transaction, or a portion of the transactions as defined. Therefore, the Company has not consolidated these VIEs in the consolidated balance sheets. As of December 31, 2017, the Company did not have any outstanding land purchase options.

Related Party Transactions	12 Months Ended
Related Party Transactions	Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	16. RELATED PARTY TRANSACTIONS The Company has a lease for its corporate headquarters from an affiliate wholly-owned by our CEO. Future minimum lease payments under this lease, which expires in 2018, is $0.2 million. For each of the years ended December 31, 2017 and 2016, total rental payments made were $0.2 million and $0.3 million, respectively. Rent expense for the years ended December 31, 2017 and 2016 was $0.2 million and $0.3 million, respectively. On February 23, 2009, Comstock Homes of Washington, L.C., a wholly-owned subsidiary of the Company, entered into a Services Agreement with Comstock Asset Management, L.C., an entity wholly-owned by the Chief Executive Officer, to provide services related to real estate development and improvements, legal, accounting, marketing, information technology and additional support services. For the years ended December 31, 2017 and 2016, the Company billed Comstock Asset Management, L.C. $1.1 million and $0.9 million, respectively, for services and out-of-pocket expenses incurred. Revenues from this arrangement are included within ‘Revenue – other’ within the accompanying consolidated statements of operations. As of December 31, 2017 and 2016, the Company was owed $145 and $132, respectively, under this contract, which is included in ‘Trade receivables’ in the accompanying consolidated balance sheets. On October 17, 2014, CGF entered into a subscription agreement with CDS pursuant to which CDS purchased membership interests in CGF for a principal amount of $10.0 million. Other purchasers who purchased interest in the private placement included members of the Company’s management and board of directors and other third party, accredited investors for an additional principal amount of $6.2 million. Simultaneously, on October 17, 2014, the Company entered into an unsecured promissory note with CGF whereby CGF made a loan to the Company in the initial principal amount of $10.0 million and a maximum capacity of up to $20.0 million. On December 18, 2014, the loan agreement was amended and restated to provide for a maximum capacity of $25.0 million. All of the other terms of the unsecured promissory note remained the same. The Company borrowed additional principal loan amount of $6.2 million under the Amended and Restated CGF promissory note bringing the total aggregate principal amount borrowed to $16.2 million. The CGF loan has a three-year term carrying a floating interest rate of LIBOR plus 9.75% with a 10% floor. The loan requires an annual principal repayment in the amount of 10% of the average outstanding balance and a monthly interest payment that will be made in arrears. See Note 10 for further discussion of transactions entered with CGF. On December 18, 2014, CGF entered into amended and restated subscription agreements with CDS, members of the Company’s management and board of directors and the other third party accredited investors who participated in the CGF Private Placement (the “Amended CGF Private Placement”). Under the Amended CGF Private Placement, in addition to the warrants described above, the Company entered into a commitment to grant 226,857 shares of our Class A common stock to the purchasers in the Amended CGF Private Placement. On May 12, 2015, the Company issued 226,857 un-registered shares of its Class A common stock to the purchasers in the Amended CGF Private Placement. The Amended CGF Private Placement was closed for additional investments on May 15, 2015. On December 29, 2015, the Company and Stonehenge Funding, L.C. (“Stonehenge”), an entity wholly owned by our Chief Executive Officer, entered into a Note Exchange and Subscription Agreement pursuant to which the note in the original principal amount of $4.5 million issued to the Company by Stonehenge was cancelled in its entirety and exchanged for 772,210 shares of the Company’s Series B Non-Convertible Preferred Stock, par value $0.01 per share and a stated value of $5.00 per share (the “Series B Preferred Stock”). The number of shares of Series B Preferred Stock received by Stonehenge in exchange for the note represented the principal amount outstanding plus accrued interest under the note as of December 29, 2015, which was $3.9 million. The holders of Series B Preferred Stock earn dividends at a rate of 8.75% per annum accruing from the effective date of the Note Exchange and Subscription Agreement. On December 29, 2015, the Company entered into a revolving line of credit promissory note with CGF II whereby CGF II made a loan to the Company in the initial principal amount of $5.0 million and a maximum amount available for borrowing of up to $10.0 million with a two-year term, which may be extended an additional year. The interest rate is 10% per annum, and interest payments will be accrued and paid in kind monthly for the first year, and then paid current monthly in arrears beginning December 31, 2016. On December 29, 2017, the CGF II loan was extended one year to December 29, 2018. As of December 31, 2017 and December 31, 2016, $3.6 million and $3.3 million, respectively, was outstanding in principal and accrued interest under the CGF II loan. On March 22, 2017, the Company entered into a Share Exchange Agreement with the holders of the Company’s Series B Preferred Stock pursuant to which the Company exchanged 858,210 shares of the Company’s Series B Preferred Stock for 772,210 shares of the Company’s newly created Series C Non-Convertible Preferred Stock, par value $0.01 per share and a stated value of $5.00 per share. The Series C Preferred Stock has a discretionary dividend feature, as opposed to the mandatory dividend feature in the Series B Preferred Stock. The Series B Preferred Stock, together with all accrued dividends earned through the conversion date, was retired upon re-acquisition and the fair value of the Series C Preferred Stock is recorded in ‘Stockholders’ equity’ in the accompanying consolidated balance sheets. The difference in fair value from the extinguishment of the Series B Preferred Stock and issuance of the Series C Preferred Stock of $1,011 was recorded in the accompanying consolidated statement of operations. For the year ended December 31, 2017, 15,663 shares of the Series B Preferred Stock, with a liquidation value of $78, were paid-in-kind, and were retired in the conversion. For the year ended December 31, 2016, 69,639 shares of the Series B Preferred Stock, with a liquidation value of $348, were paid in-kind, and are included in ‘Stockholders’ equity’ in the accompanying consolidated balance sheets. See Note 15 for a summary of the Comstock VII Private Placement and the Comstock VIII Private Placement which involved certain of our officers and directors and Note 10 to the consolidated financial statements for further description of the CGF Private Placement and the CGF II Private Placement. See Note 15 for a summary of the Comstock X Private Placement which involved a wholly owned entity of the Chief Executive Officer of the Company.

Warrants	12 Months Ended
Warrants	Dec. 31, 2017
Text Block [Abstract]
Warrants	17. WARRANTS As part of the Comstock VII Private Placement discussed in Note 15, the Company issued warrants to purchase shares of the Company’s Class A common stock to the Comstock VII Class B Members who are not officers, directors or affiliates of the Company and who purchased membership interests in the offering that equaled or exceeded an initial investment amount of $250. The warrants represent the right to purchase an aggregate amount of up to 16 shares of the Company’s Class A common stock. The warrants have an initial exercise price which is equal to the average of the closing price of the Company’s Class A common stock of the 20 trading days preceding the issuance of the warrants. The warrants contain a cashless exercise provision. In the event the purchasers exercise the warrants on a cashless basis, the Company will not receive any proceeds. The warrants may be exercised at any time prior to March 14, 2023. In addition, as part of the Comstock VIII Private Placement discussed in Note 15, the Company issued warrants to purchase shares of the Company’s Class A common stock to the Comstock VIII Class B Members who are not officers, directors or affiliates of the Company and who purchased membership interests that equaled or exceeded an initial investment amount of $250. The warrants represent the right to purchase an aggregate amount of up to 15 shares of the Company’s Class A common stock. The warrants have an initial exercise price which is equal to the average of the closing price of the Company’s Class A common stock of the 20 trading days preceding the issuance of the warrants. The warrants contain a cashless exercise provision. In the event the purchasers exercise the warrants on a cashless basis, the Company will not receive any proceeds. The warrants may be exercised at any time prior to December 12, 2023. Also, as part of the Comstock X Private Placement discussed in Note 15, the Company issued warrants to purchase shares of the Company’s Class A common stock to the Comstock X Class B Member. The warrants represent the right to purchase an aggregate amount of up to 150 shares of the Company’s Class A common stock. The warrants have an initial exercise price which is equal to the average of the closing price of the Company’s Class A common stock of the 20 trading days preceding the issuance of the warrants. The warrants contain a cashless exercise provision. In the event the purchasers exercise the warrants on a cashless basis, the Company will not receive any proceeds. The warrants may be exercised at any time prior to August 15, 2026. As part of the additional $5.0 million contribution received from Comstock X in October 2017, an additional 50 warrants to purchase the Company’s Class A common stock were issued. These warrants have the same terms and provisions as the original 150 warrants issued in August 2016. These warrants may be exercised any time prior to October 16, 2027. As discussed in Note 10, as part of the CGF Private Placement, depending upon the investment amount, purchasers of interests in CGF other than CDS received warrants that represent the right to purchase a certain number of shares of the Company’s Class A common stock. For purchasers who are not affiliates or insiders, the warrants have initial exercise prices ranging from $4.91 to $7.63. The exercise prices of the warrants to affiliates and insiders range from $7.30 to $7.63. The warrants contain a cashless exercise provision. In the event a purchaser exercises the warrant on a cashless basis, the Company will not receive any proceeds. The warrants may be exercised at any time within ten years from the date of issuance. As of December 31, 2017, the warrants represent the right to purchase an aggregate amount of up to 76 shares of our Class A common stock. In connection with entering into the SunBridge (“BridgeCom”) loan agreement in 2011, the Company issued warrants to purchase shares of the Company’s Class A common stock to BridgeCom Development I, LLC, an affiliate of SunBridge. The warrants represent the right to purchase an aggregate amount of up to 143 shares of the Company’s Class A common stock. The warrants have an initial exercise price of $7.21. The warrants contain a cashless exercise provision. In the event the purchasers exercise the warrants on a cashless basis, the Company will not receive any proceeds. The warrants may be exercised at any time prior to July 12, 2021. On May 29, 2012, the Company repaid the SunBridge loans in full and the SunBridge warrants remain unexercised as of December 31, 2017.

Unconsolidated Joint Venture

12 Months Ended

Dec. 31, 2017

Equity Method Investments and Joint Ventures [Abstract]

Unconsolidated Joint Venture

18. UNCONSOLIDATED JOINT VENTURE

The Company accounts for its interest in its title insurance joint venture using the equity method of accounting and adjusts the carrying value for its proportionate share of earnings, losses and distributions. The investment in the unconsolidated joint venture was $27 and $54 as of December 31, 2017 and 2016, respectively, and is included within ‘Other assets, net’ in the accompanying consolidated balance sheets. Earnings for the years ended December 31, 2017 and 2016, from this unconsolidated joint venture of $53 and $87, respectively, is included in ‘Other income, net’ in the accompanying consolidated statement of operations. During the years ended December 31, 2017 and 2016, the Company collected and recorded a distribution of $83 and $102, respectively, from this joint venture as a return on investment.

Summarized unaudited financial information for the unconsolidated joint venture is as follows:


	Twelve Months Ended December 31,
	2017		2016
Statement of Operations:
Total net revenue	$	219	$	290
Total expenses		114		117

Net income	$	105	$	173

Comstock Holding Companies, Inc. share of net income	$	53	$	87

Income Taxes

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Income Taxes

19. INCOME TAXES

During the year ended December 31, 2017, the Company recognized income tax expense of $38 thousand and the effective tax rate was 0.91%. During the year ended December 31, 2016, the Company recognized income tax expense of $55 thousand and the effective tax rate was 0.82%.

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The Company recorded valuation allowances for certain tax attributes and other deferred tax assets. At this time, sufficient uncertainty exists regarding the future realization of these deferred tax assets through future taxable income. If, in the future, the Company believes that it is more likely than not that these deferred tax benefits will be realized, the valuation allowances will be reversed. With a full valuation allowance, any change in the deferred tax asset or liability is fully offset by a corresponding change in the valuation allowance.

The Tax Cut and Jobs Act was enacted on December 22, 2017, resulting in significant changes to the taxation of corporations and individuals. For corporate taxpayers, the Tax Act lowers the corporate tax rate, from 35% to 21%, which requires the Company to re-measure net deferred tax assets in the period of enactment as a discrete item within the income tax provision. As of result of the decrease in the federal tax rate, a decrease of net deferred tax assets of approximately $20 million was recorded. This decrease is substantially offset by the Company’s valuation allowance.

The Company currently has approximately $144 million in federal and state Net Operating Losses (“NOLs), which based on current statutory tax rates, including the lower corporate tax rate enacted by the Tax Act. If unused, these NOLs will begin expiring in 2027. Under Code Section 382 (“Section 382”) rules, if a change of ownership is triggered, the Company’s NOL assets and possibly certain other deferred tax assets may be impaired. We estimate that as of December 31, 2017, the three-year cumulative shift in ownership of the Company’s stock has not triggered an impairment of our NOL asset. However, if an ownership change were to occur, the Section 382 limitation would not be expected to materially impact the Company’s financial position or results of operations as of December 31, 2017, because the Company has recorded a full valuation allowance on substantially all of its net deferred tax assets.

The Company’s ability to use its NOLs (and in certain circumstances, future built-in losses and depreciation deductions) can be negatively affected if there is an “ownership change” as defined under Section 382. In general, an ownership change occurs whenever there is a shift in ownership by more than 50 percentage points by one or more 5% stockholders over a specified time period (generally three years). Given Section 382’s broad definition, an ownership change could be the unintended consequence of otherwise normal market trading in the Company’s stock that is outside of the Company’s control. In an effort to preserve the availability of these NOLs, Comstock adopted a Section 382 rights agreement, which expired in May 2014. In June 2015, at the 2015 Annual Meeting of Stockholders, the Company’s stockholders approved a new Internal Revenue Code Section 382 Rights Agreement (the “Rights Agreement”) to protect stockholder value. The Rights Agreement expires on March 27, 2025. The Rights Agreement was adopted to reduce the likelihood of such an unintended “ownership change”, thus preserving the value of these tax benefits. Similar plans have been adopted by a number of companies holding similar significant tax assets over the past several years.

The Company has not recorded any accruals related to uncertain tax positions as of December 31, 2017 and 2016, respectively. We file U.S. and state income tax returns in jurisdictions with varying statutes of limitations. The 2014 through 2016 tax years remain subject to examination by federal and most state tax authorities. The income tax provision consists of the following as of December 31:


	2017			2016
Current:
Federal	$	—		$	—
State		24			37

		24			37
Deferred:
Federal		15,171			3,967
State		2,724			742

		17,895			4,709
Valuation allowance		(17,881	)		(4,691	)

Total income tax expense	$	38		$	55

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Components of the Company’s deferred tax assets and liabilities at December 31, 2017 and 2016 are as follows:


	2017			2016
Deferred tax assets:
Inventory	$	834		$	1,766
Warranty		67			113
Net operating loss and tax credit carryforwards		37,045			53,721
Accrued expenses		4			7
Stock based compensation		352			387
Investment in affiliates		48			—

		38,350			55,994
Less—valuation allowance		(38,328	)		(55,739	)

Net deferred tax assets		22			255
Deferred tax liabilities:
Depreciation and amortization		(21	)		(46	)
Investment in affiliates		—			(209	)
Goodwill amortization		(15	)		—

Net deferred tax liabilities		(36	)		(255	)

Net deferred tax assets (liabilities)	$	(14	)	$	—

A reconciliation of the statutory rate and the effective tax rate after adjustments for non-includable partnership income arising from non-controlling interest follows:


	2017			2016
Federal statutory rate		(35.00	%)		(35.00	%)
State income taxes—net of federal benefit		(3.90	%)		(3.90	%)
Permanent differences		(10.94	%)		(12.87	%)
Return to provision adjustments		5.18	%		(18.16	%)
Change in valuation allowance		(417.08	%)		69.93	%
Current state income tax		0.56	%		0.82	%
Change in enacted rate		462.23	%		0.00	%
Other, net		(0.15	%)		0.00	%

Effective tax rate		0.91	%		0.82	%

Preferred Stock	12 Months Ended
Preferred Stock	Dec. 31, 2017
Equity [Abstract]
Preferred Stock	20. PREFERRED STOCK On March 22, 2017, the Company entered into a Share Exchange Agreement with the holders of the Company’s Series B Preferred Stock pursuant to which the Company exchanged 858,210 shares of the Company’s Series B Preferred Stock for 772,210 shares of the Company’s newly created Series C Non-Convertible Preferred Stock, par value $0.01 per share and a stated value of $5.00 per share. The Series C Preferred Stock has a discretionary dividend feature, as opposed to the mandatory dividend feature in the Series B Preferred Stock. The Series B Preferred Stock, together with all accrued dividends earned through the conversion date, was retired upon re-acquisition and the fair value of the Series C Preferred Stock is recorded in ‘Stockholders’ equity’ in the accompanying consolidated balance sheets. The difference in fair value from the extinguishment of the Series B Preferred Stock and issuance of the Series C Preferred Stock of $1,011 was recorded in the accompanying consolidated statements of operations. For the year ended December 31, 2017, 15,663 shares of the Series B Preferred Stock, with a liquidation value of $78, were paid-in-kind, and were retired in the conversion. For the year ended December 31, 2016, 69,639 shares of the Series B Preferred Stock, with a liquidation value of $348, were paid in-kind, and are included in ‘Stockholders’ equity’ in the accompanying consolidated balance sheets.

Quarterly Results (unaudited)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results (unaudited)

21. QUARTERLY RESULTS (unaudited)

Quarterly results for the years ended December 31, 2017 and 2016 are as follows (in thousands, except per share amounts):


	Three months ended
	March 31,			June 30,			September 30,			December 31,
	2017			2017			2017			2017
Revenues	$	10,268		$	10,520		$	13,815		$	10,827
Operating loss		(684	)		(563	)		(1,193	)		(2,366	)
Loss before income tax expense		(664	)		(535	)		(1,172	)		(2,369	)
Net loss		(664	)		(535	)		(1,201	)		(2,378	)
Net income (loss) attributable to common stockholders		286			387			(1,510	)		(3,225	)
Basic income (loss) per share		0.09			0.12			(0.45	)		(0.98	)
Diluted income (loss) per share		0.08			0.11			(0.45	)		(0.98	)

	Three months ended
	March 31,			June 30,			September 30,			December 31,
	2016			2016			2016			2016
Revenues	$	9,706		$	9,978		$	13,103		$	8,793
Operating loss		(1,271	)		(1,442	)		(854	)		(3,297	)
Loss before income tax expense		(1,263	)		(1,429	)		(756	)		(3,259	)
Net loss		(1,288	)		(1,461	)		(756	)		(3,257	)
Net loss attributable to common stockholders		(1,724	)		(1,995	)		(1,046	)		(4,576	)
Basic loss per share		(0.55	)		(0.60	)		(0.34	)		(1.38	)
Diluted loss per share		(0.55	)		(0.60	)		(0.34	)		(1.38	)

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	22. SUBSEQUENT EVENTS On January 15, 2018, the Company extended its revolving acquisition and construction loans related to The Towns at 1333 Project. The loans had an initial maturity date of January 15, 2018 and the subsequent extensions provide for a maturity date January 19, 2019. All other terms of the original agreements remain in full force and effect. As of December 31, 2017, the Company had $5.2 million in outstanding borrowings under this revolving credit facility. On March 15, 2018, the Company extended its credit line deed of trust note for acquisition and construction related to the Woods at Spring Ridge Project. The note had an initial maturity date of March 15, 2018 and the subsequent extension provides for a maturity date of June 15, 2018. The note is modified to state that the lender, after June 15, 2018, shall have no obligation to approve a new construction loan under the construction line for any lot or unit pursuant to the loan approval conditions set forth in the loan agreement or to make any further advances of loan proceeds under the loans. All other terms and conditions of the original agreements remain in full force and effect. As of December 31, 2017, the Company had $2.2 million in outstanding borrowings under this revolving credit facility. On March 30, 2018, CDS Asset Management, L.C. (“CAM”), an entity wholly owned by the Company, entered into a master asset management agreement (“the Agreement”) with Comstock Development Services LC (“CDS”), an entity wholly owned by Christopher Clemente, the Chief Executive Officer of the Company. The effective date of this agreement is January 2, 2018. Entering into the Agreement is part of the Company’s strategic plan to transform its business model from for-sale homebuilding to commercial development, asset management and real estate services. The Company intends to concurrently wind down its current for-sale homebuilding business. Pursuant to the Agreement, CDS will pay CAM an annual cost-plus fee (the “Annual Fee”) in an aggregate amount equal to the sum of (i) the employment expenses of personnel dedicated to providing services to the Comstock Real Estate Portfolio pursuant to the Agreement, (ii) the costs and expenses of the Company related to maintaining the listing of its shares on a securities exchange and complying with regulatory and reporting obligations as a public company, and (iii) a fixed annual payment of $1,000,000. On April 16, 2018, the Company extended its notes payable with Comstock Growth Fund I. This loan had a maturity date of April 16, 2018 and the extension provides for a maturity date of April 16, 2019. As of December 31, 2017, the Company had $11.3 million of principal and interest, net of discounts, outstanding under the credit facility.

Organization (Policies)

12 Months Ended

Dec. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Liquidity Developments

Liquidity Developments

We require capital to operate, to post deposits on new potential acquisitions, to purchase and develop land, to construct homes, to fund related carrying costs and overhead and to fund various advertising and marketing programs to generate sales. These expenditures include payroll, community engineering, entitlement, architecture, advertising, utilities and interest as well as the construction costs of our homes. Our sources of capital have historically included, private equity and debt placements (which has included significant participation from Company insiders), funds derived from various secured and unsecured borrowings to finance acquisition, development and construction on acquired land, cash flow from operations, which includes the sale and delivery of constructed homes and finished and raw building lots. The Company is involved in ongoing discussions with lenders and equity sources in order to obtain additional growth capital to fund various new business opportunities. See Note 10 for more details on our credit facilities and Note 15 for details on private placement offerings in 2017 and 2016.

As of December 31, 2017, $16.0 million of the Company’s secured project related notes were set to mature at various periods through the end of 2018. As of April 20, 2018, the Company has successfully extended or repaid all obligations with Lenders through April 20, 2018, as more fully described in Note 10 and Note 22, and we are actively engaging our lenders seeking long term extensions and modifications to the loans where necessary. These debt instruments impose certain restrictions on our operations, including speculative unit construction limitations, curtailment obligations and financial covenant compliance. If we fail to comply with any of these restrictions, an event of default could occur. Additionally, events of default could occur if we fail to make required debt service payments or if we fail to come to agreement on an extension on a certain facility prior to a given loan’s maturity date. Any event of default would likely render the obligations under these instruments due and payable as of that event. Any such event of default would allow certain of our lenders to exercise cross default provisions in our loan agreements with them, such that if we default on an obligation, all debt with that particular institution could be called into default.

At December 31, 2017, $14.9 million of our notes payable to affiliates were set to mature prior to the end of 2018. These funds were primarily obtained from entities wholly owned by our Chief Executive Officer, who has unilateral ability to extend the maturity dates beyond 2018 as needed. The current performance of our projects has met all required servicing obligations required by the facilities. We are anticipating that with successful resolution of the debt extension discussions with our lenders, the recently completed capital raises from our private placements, current available cash on hand, and additional cash from settlement proceeds at existing and under development communities, the Company will have sufficient financial resources to sustain its operations through the next 12 months, though no assurances can be made that the Company will be successful in its efforts. Refer to Note 10 for further discussion regarding extensions and Note 22 for other subsequent events impacting our credit facilities.

Basis of presentation

Basis of presentation

Cash and cash equivalents and restricted cash

Cash and cash equivalents and restricted cash

Trade Receivables

Trade Receivables

Real estate inventories

Real estate inventories

Capitalized interest and real estate taxes

Capitalized interest and real estate taxes

The following table is a summary of interest and real estate taxes incurred, capitalized and expensed for units settled:


	Twelve Months Ended December 31
	2017		2016
Total interest incurred and capitalized	$	4,223	$	3,227
Total real estate taxes incurred and capitalized		354		240

Total interest and real estate taxes incurred and capitalized	$	4,577	$	3,467

Interest expensed as a component of cost of sales	$	2,604	$	1,833
Real estate taxes expensed as a component of cost of sales		267		235

Interest and real estate taxes expensed as a component of cost of sales	$	2,871	$	2,068

The following is a breakdown of the interest and real estate taxes expensed in the consolidated statement of operations for the periods presented:


	Twelve Months Ended December 31,
	2017		2016
Interest incurred and expensed from entity level borrowings	$	—	$	876
Interest incurred and expensed for inactive projects		41		5
Real estate taxes incurred and expensed for inactive projects		—		5

	$	41	$	886

Fixed assets

Fixed assets

Fixed assets are carried at cost less accumulated depreciation and are depreciated on the straight-line method over their estimated useful lives as follows:


Furniture and fixtures			7 years
Office equipment and vehicles			5 years
Leasehold improvements			life of related lease
Computer equipment			3 years
Capitalized software			3 years

Goodwill and Intangible Assets

Goodwill and Intangible Assets

Warranty reserve

Warranty reserve


	Years ended December 31,
	2017			2016
Balance at beginning of period	$	287		$	312
Additions		178			233
Releases and/or charges incurred		(207	)		(258	)

Balance at end of period	$	258		$	287

Revenue recognition

Revenue recognition

Advertising costs

Advertising costs

Stock compensation

Stock compensation

Income taxes

Income taxes

Loss per share

Loss per share


	Twelve Months Ended December 31,
	2017		2016
Restricted stock awards		83		—
Warrants		11		—

		94		—

Comprehensive income (loss)

Comprehensive income (loss)

Segment reporting

Segment reporting


	Homebuilding			Multi-Family		Real Estate Services			Total
Twelve Months Ended December 31, 2017
Gross revenue	$	43,399		$	—	$	2,031		$	45,430
Gross profit		2,814			—		(268	)		2,546
Net (loss) income		(4,348	)		—		(430	)		(4,778	)
Total assets		47,474			—		3,684			51,158
Depreciation, amortization, and stock based compensation		409			—		177			586
Interest expense		—			—		41			41
Twelve Months Ended December 31, 2016
Gross revenue	$	40,696		$	—	$	884		$	41,580
Gross profit		2,460			—		457			2,917
Net (loss) income		(7,219	)		—		457			(6,762	)
Total assets		59,688			—		133			59,821
Depreciation, amortization, and stock based compensation		258			—		10			268
Interest expense		881			—		—			881

The Company allocates sales, marketing and general and administrative expenses to the individual segments based upon specifically allocable costs.

Use of estimates

Use of estimates

Reclassifications

Reclassifications

Recent accounting pronouncements

Recent accounting pronouncements

Consolidation Of Entities

The Company does not share in an allocation of either the profit earned or loss incurred by any of these entities with which the Company has fixed price purchase agreements. The Company has concluded that whenever it options land or lots from an entity and pays a significant non-refundable deposit as described above, a variable interest entity is created under the provisions of ASC 810-10, Consolidation. This is because the Company has been deemed to have provided subordinated financial support, which creates a variable interest which limits the equity holder’s returns and may absorb some or all of an entity’s expected theoretical losses if they occur. The Company, therefore, examines the entities with which it has fixed price purchase agreements for possible consolidation by the Company under the provision of ASC 810-10. The Company does not have any contractual or ownership interests in the entities with which it contracts to buy the land. The Company concluded that it does not have the power to direct the activities that most significantly impact the economic performance of the VIEs, including the power to site plan and engineer the developments, finance the parcels under option contract, and develop the raw parcels under option contract into finished lots. The third party retains these rights under the fixed purchase price agreements until title is transferred to the Company upon settlement of the transaction, or a portion of the transactions as defined. Therefore, the Company has not consolidated these VIEs in the consolidated balance sheets. As of December 31, 2017, the Company did not have any outstanding land purchase options.

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Summary of Interest Incurred, Capitalized and Expensed for Units Settled

The following table is a summary of interest and real estate taxes incurred, capitalized and expensed for units settled:


	Twelve Months Ended December 31
	2017		2016
Total interest incurred and capitalized	$	4,223	$	3,227
Total real estate taxes incurred and capitalized		354		240

Total interest and real estate taxes incurred and capitalized	$	4,577	$	3,467

Interest expensed as a component of cost of sales	$	2,604	$	1,833
Real estate taxes expensed as a component of cost of sales		267		235

Interest and real estate taxes expensed as a component of cost of sales	$	2,871	$	2,068

Summary of Interest and Real Estate Taxes Expensed in Consolidated Statement of Operations

The following is a breakdown of the interest and real estate taxes expensed in the consolidated statement of operations for the periods presented:


	Twelve Months Ended December 31,
	2017		2016
Interest incurred and expensed from entity level borrowings	$	—	$	876
Interest incurred and expensed for inactive projects		41		5
Real estate taxes incurred and expensed for inactive projects		—		5

	$	41	$	886

Fixed Assets are Carried at Cost Less Accumulated Depreciation

Fixed assets are carried at cost less accumulated depreciation and are depreciated on the straight-line method over their estimated useful lives as follows:


Furniture and fixtures			7 years
Office equipment and vehicles			5 years
Leasehold improvements			life of related lease
Computer equipment			3 years
Capitalized software			3 years

Summary of Warranty Reserve Activity Included in Accounts Payable and Accrued Liabilities

The following table is a summary of warranty reserve activity, which is included in accounts payable and accrued liabilities:


	Years ended December 31,
	2017			2016
Balance at beginning of period	$	287		$	312
Additions		178			233
Releases and/or charges incurred		(207	)		(258	)

Balance at end of period	$	258		$	287

Summary of Shares Included in Diluted Share Computation


	Twelve Months Ended December 31,
	2017		2016
Restricted stock awards		83		—
Warrants		11		—

		94		—

Segment Reporting Information


	Homebuilding			Multi-Family		Real Estate Services			Total
Twelve Months Ended December 31, 2017
Gross revenue	$	43,399		$	—	$	2,031		$	45,430
Gross profit		2,814			—		(268	)		2,546
Net (loss) income		(4,348	)		—		(430	)		(4,778	)
Total assets		47,474			—		3,684			51,158
Depreciation, amortization, and stock based compensation		409			—		177			586
Interest expense		—			—		41			41
Twelve Months Ended December 31, 2016
Gross revenue	$	40,696		$	—	$	884		$	41,580
Gross profit		2,460			—		457			2,917
Net (loss) income		(7,219	)		—		457			(6,762	)
Total assets		59,688			—		133			59,821
Depreciation, amortization, and stock based compensation		258			—		10			268
Interest expense		881			—		—			881

Trade Receivables (Tables)

12 Months Ended

Dec. 31, 2017

Text Block [Abstract]

Summary of Trade Receivables

Trade receivables include amounts due from real estate services, home sales transactions and amounts due from related parties with whom we have service arrangements.


	December 31,		December 31,
	2017		2016
Trade	$	432	$	—
Due from Settlement Attorneys		—		432
Related parties		145		132
Other		59		49

		636		613
Less : allowance for doubtful accounts		—		—

	$	636	$	613

Fixed Assets, Net (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Summary of Fixed Assets

Fixed assets consist of the following:


	December 31, 2017			December 31, 2016
Computer equipment and capitalized software	$	731		$	704
Furniture and fixtures		51			52
Office equipment		209			45
Vehicles		42			—

		1,033			801
Less : accumulated depreciation		(724	)		(546	)

	$	309		$	255

Goodwill And Intangibles (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Purchase Price Allocation

The table below summarizes the purchase price allocation based on the estimated fair value of net assets acquired at the date of acquisition.


ASSETS
Net Working Capital	$	141
Net Fixed Assets		180
Intangible Assets		268
Goodwill		1,702

Total Purchase Price	$	2,291

Summary of Goodwill and Intangible Assets

Intangible assets include customer relationships which has an amortization period of four years.


	December 31, 2017
Goodwill	$	1,702
Intangibles		268

		1,970
Less : accumulated amortization		(31	)

	$	1,939

Summary of Future Estimated Amortization Expense

As of December 31, 2017, the future estimated amortization expense related to these intangible assets was:


	Amortization Expense
2018	$	67
2019		67
2020		67
2021		36
2022 and thereafter		—

Total	$	237

Other Assets (Tables)

12 Months Ended

Dec. 31, 2017

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Summary of Other Assets

Other assets consist of the following:


	December 31, 2017			December 31, 2016
Prepaid project costs	$	—		$	989
Deferred financing cost—line of credit		—			1,286
Bonds and escrow deposits		380			221
Other		905			846

		1,285			3,342
Less : accumulated amortization		(669	)		(1,230	)

	$	616		$	2,112

Accounts Payable and Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Payables and Accruals [Abstract]

Accounts Payable and Accrued Liabilities

Accounts payable and accrued liabilities consist of the following:


	December 31, 2017		December 31, 2016
Trade and accrued payables	$	8,279	$	6,925
Warranty		258		287
Customer deposits		575		497
Other		4		12

	$	9,116	$	7,721

Debt (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Summary of Notes Payable

Notes payable consisted of the following:


	December 31, 2017			December 31, 2016
Construction revolvers	$	7,337		$	6,429
Development and acquisition notes		11,584			16,278
Mezzanine notes		1,244			1,424
Line of credit		2,131			2,929
Secured-other		1,069			—

Total secured notes		23,365			27,060
Deferred financing charges, net of amortization		(150	)		(133	)

Net secured notes		23,215			26,927
Unsecured financing, net of unamortized deferred financing charges of $55 and $121		1,285			911
Notes payable, unsecured, net of $2.0 and $2.1 million discount and unamortized deferred financing charges, respectively		14,893			15,866

Total notes payable	$	39,393		$	43,704

Maturities of Borrowings

As of December 31, 2017, maturities of our borrowings are as follows:


2018	$	33,510
2019		4,080
2020		124
2021		—
2022 and thereafter		1,679

Total	$	39,393

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21475-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21538-112644

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21506-112644

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21521-112644

+ Details

Restricted Stock, Stock Options and Other Stock Plans (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Assumptions Used to Calculate Fair Value of Options

The following table summarizes the assumptions used to calculate the fair value of options during 2017. No options were granted in 2016.


	2017
Weighted average fair value of options granted	$	1.20
Dividend yields		—
Expected volatility		70.60%-79.40	%
Weighted average expected volatility		72.73	%
Risk free interest rates		2.15	%
Weighted average expected term (in years)		6.25

Summary Information about Stock Option Activity

The following table summarizes information about stock option activity:


	Shares			Weighted Average Exercise Price		Aggregate Intrinsic Value
Outstanding at January 1, 2016		174		$	8.39
Granted		—			—
Exercised		—			—
Forfeited or Expired		(62	)		8.82

Outstanding at December 31, 2016		112		$	8.16
Granted		345			1.89
Exercised		—			—
Forfeited or Expired		(21	)		7.06

Outstanding at December 31, 2017		436		$	3.25	$	—

Exercisable at December 31, 2017		86		$	8.46	$	—

Summary of Company's Restricted Share Activity

A summary of the Company’s restricted share activity is presented below:


	Shares			Weighted Average Grant Date Fair Value
Restricted nonvested at January 1, 2016		12		$	12.42
Granted		20			1.89
Vested		(12	)		12.42
Forfeited or Expired		—			—

Outstanding at December 31, 2016		20		$	1.89
Granted		245			2.13
Vested		(22	)		1.88
Forfeited or Expired		—			—

Nonvested at December 31, 2017		243		$	2.16

Unconsolidated Joint Venture (Tables)

12 Months Ended

Dec. 31, 2017

Equity Method Investments and Joint Ventures [Abstract]

Summarized Unaudited Financial Information for Unconsolidated Joint Venture

Summarized unaudited financial information for the unconsolidated joint venture is as follows:


	Twelve Months Ended December 31,
	2017		2016
Statement of Operations:
Total net revenue	$	219	$	290
Total expenses		114		117

Net income	$	105	$	173

Comstock Holding Companies, Inc. share of net income	$	53	$	87

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Schedule of Income Tax Provision

The income tax provision consists of the following as of December 31:


	2017			2016
Current:
Federal	$	—		$	—
State		24			37

		24			37
Deferred:
Federal		15,171			3,967
State		2,724			742

		17,895			4,709
Valuation allowance		(17,881	)		(4,691	)

Total income tax expense	$	38		$	55

Components of Deferred Tax Assets and Liabilities

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Components of the Company’s deferred tax assets and liabilities at December 31, 2017 and 2016 are as follows:


	2017			2016
Deferred tax assets:
Inventory	$	834		$	1,766
Warranty		67			113
Net operating loss and tax credit carryforwards		37,045			53,721
Accrued expenses		4			7
Stock based compensation		352			387
Investment in affiliates		48			—

		38,350			55,994
Less—valuation allowance		(38,328	)		(55,739	)

Net deferred tax assets		22			255
Deferred tax liabilities:
Depreciation and amortization		(21	)		(46	)
Investment in affiliates		—			(209	)
Goodwill amortization		(15	)		—

Net deferred tax liabilities		(36	)		(255	)

Net deferred tax assets (liabilities)	$	(14	)	$	—

Reconciliation of Statutory and Effective Tax Rate After Adjustments for Non-Includable Partnership Income Arising from Non-Controlling Interest

A reconciliation of the statutory rate and the effective tax rate after adjustments for non-includable partnership income arising from non-controlling interest follows:


	2017			2016
Federal statutory rate		(35.00	%)		(35.00	%)
State income taxes—net of federal benefit		(3.90	%)		(3.90	%)
Permanent differences		(10.94	%)		(12.87	%)
Return to provision adjustments		5.18	%		(18.16	%)
Change in valuation allowance		(417.08	%)		69.93	%
Current state income tax		0.56	%		0.82	%
Change in enacted rate		462.23	%		0.00	%
Other, net		(0.15	%)		0.00	%

Effective tax rate		0.91	%		0.82	%

Quarterly Results (unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results Financial Information

Quarterly results for the years ended December 31, 2017 and 2016 are as follows (in thousands, except per share amounts):


	Three months ended
	March 31,			June 30,			September 30,			December 31,
	2017			2017			2017			2017
Revenues	$	10,268		$	10,520		$	13,815		$	10,827
Operating loss		(684	)		(563	)		(1,193	)		(2,366	)
Loss before income tax expense		(664	)		(535	)		(1,172	)		(2,369	)
Net loss		(664	)		(535	)		(1,201	)		(2,378	)
Net income (loss) attributable to common stockholders		286			387			(1,510	)		(3,225	)
Basic income (loss) per share		0.09			0.12			(0.45	)		(0.98	)
Diluted income (loss) per share		0.08			0.11			(0.45	)		(0.98	)

	Three months ended
	March 31,			June 30,			September 30,			December 31,
	2016			2016			2016			2016
Revenues	$	9,706		$	9,978		$	13,103		$	8,793
Operating loss		(1,271	)		(1,442	)		(854	)		(3,297	)
Loss before income tax expense		(1,263	)		(1,429	)		(756	)		(3,259	)
Net loss		(1,288	)		(1,461	)		(756	)		(3,257	)
Net loss attributable to common stockholders		(1,724	)		(1,995	)		(1,046	)		(4,576	)
Basic loss per share		(0.55	)		(0.60	)		(0.34	)		(1.38	)
Diluted loss per share		(0.55	)		(0.60	)		(0.34	)		(1.38	)

Organization - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Secured project related notes, maturing during the remainder of 2017	$ 16,000
Notes payable to affiliates	$ 14,893	$ 15,866
Notes payable maturity	2018

Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017 USD ($) Unit Segment Investment shares	Dec. 31, 2016 USD ($) Investment shares
Summary Of Significant Accounting Policies [Line Items]
Number of investments accounted for using the equity Method \| Investment		1	1
Restricted cash		$ 1,141,000	$ 1,238,000
Inventory, real estate, held-for-sale		$ 0	0
Period for which warranty claims expected to arise		1 year
Period for which warranty claims expected to arise under statutorily period		2 years
Advertising costs		$ 568,000	586,000
Stock-based compensation cost		405,000	86,000
Amount capitalized to real estate owned		$ 59,000	$ 17,000
Corporate federal income tax rate		35.00%	35.00%
Number of operating segments \| Segment		3
Multi-Family Segment [Member]
Summary Of Significant Accounting Policies [Line Items]
Projects units minimum \| Unit		75
Projects units maximum \| Unit		200
Scenario, Plan [Member]
Summary Of Significant Accounting Policies [Line Items]
Corporate federal income tax rate	21.00%
Warrants [Member]
Summary Of Significant Accounting Policies [Line Items]
Shares considered anti-dilutive \| shares		763	851
Stock Options [Member]
Summary Of Significant Accounting Policies [Line Items]
Shares considered anti-dilutive \| shares		666	404
Restricted Stock Awards [Member]
Summary Of Significant Accounting Policies [Line Items]
Shares considered anti-dilutive \| shares		0	22
Maximum [Member] \| Equity Method Investee [Member]
Summary Of Significant Accounting Policies [Line Items]
Investments owned partnerships and affiliate in percent		50.00%
Sales and Marketing [Member]
Summary Of Significant Accounting Policies [Line Items]
Advertising costs		$ 560,000	$ 542,000
General and Administrative [Member]
Summary Of Significant Accounting Policies [Line Items]
Advertising costs		8,000	44,000
General and Administrative Expenses and Cost of Sales [Member]
Summary Of Significant Accounting Policies [Line Items]
Stock-based compensation cost		$ 346,000	$ 69,000

Summary of Significant Accounting Policies - Summary of Interest Incurred, Capitalized and Expensed for Units Settled (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Real Estate Investment Property, at Cost [Abstract]
Total interest incurred and capitalized	$ 4,223	$ 3,227
Total real estate taxes incurred and capitalized	354	240
Total interest and real estate taxes incurred and capitalized	4,577	3,467
Interest expensed as a component of cost of sales	2,604	1,833
Real estate taxes expensed as a component of cost of sales	267	235
Interest and real estate taxes expensed as a component of cost of sales	$ 2,871	$ 2,068

Summary of Significant Accounting Policies - Summary of Interest and Real Estate Taxes Expensed in Consolidated Statement of Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Real Estate Investment Property, at Cost [Abstract]
Interest incurred and expensed from entity level borrowings		$ 876
Interest incurred and expensed for inactive projects	$ 41	5
Real estate taxes incurred and expensed for inactive projects		5
Interest expense real estate taxes and indirect costs related to inactive projects attributable to discontinued operations	$ 41	$ 886

Summary of Significant Accounting Policies - Fixed Assets are Carried at Cost Less Accumulated Depreciation (Detail)	12 Months Ended
	Dec. 31, 2017
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	7 years
Office Equipment And Vehicles [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	5 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	life of related lease
Computer Equipment and Capitalized Software [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	P3Y
Capitalized Software [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	P3Y

Summary of Significant Accounting Policies - Summary of Warranty Reserve Activity Included in Accounts Payable and Accrued Liabilities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Guarantees [Abstract]
Balance at beginning of period	$ 287	$ 312
Additions	178	233
Releases and/or charges incurred	(207)	(258)
Balance at end of period	$ 258	$ 287

Summary of Significant Accounting Policies - Summary of Shares Included in Diluted Share Computation (Detail) shares in Thousands	12 Months Ended
	Dec. 31, 2017 shares
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Restricted stock awards	83
Warrants	11
Shares that have been included in diluted share computation	94

Summary of Significant Accounting Policies - Segment Reporting Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Gross revenue	$ 10,827	$ 13,815	$ 10,520	$ 10,268	$ 8,793	$ 13,103	$ 9,978	$ 9,706	$ 45,430	$ 41,580
Gross profit									2,546	2,917
Net (loss) income	(2,378)	$ (1,201)	$ (535)	$ (664)	(3,257)	$ (756)	$ (1,461)	$ (1,288)	(4,778)	(6,762)
Total assets	51,158				59,821				51,158	59,821
Depreciation, amortization, and stock based compensation									586	268
Interest expense									41	881
Homebuilding [Member]
Segment Reporting Information [Line Items]
Gross revenue									43,399	40,696
Gross profit									2,814	2,460
Net (loss) income									(4,348)	(7,219)
Total assets	47,474				59,688				47,474	59,688
Depreciation, amortization, and stock based compensation									409	258
Interest expense										881
Real Estate Services [Member]
Segment Reporting Information [Line Items]
Gross revenue									2,031	884
Gross profit									(268)	457
Net (loss) income									(430)	457
Total assets	$ 3,684				$ 133				3,684	133
Depreciation, amortization, and stock based compensation									177	$ 10
Interest expense									$ 41

Trade Receivables - Summary of Trade Receivables (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accounts Receivable, Net, Current [Abstract]
Trade	$ 432
Due from Settlement Attorneys		$ 432
Related parties	145	132
Other	59	49
Accounts receivable gross	636	613
Less : allowance for doubtful accounts	0	0
Accounts receivable net	$ 636	$ 613

Real Estate Inventories - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) Project	Dec. 31, 2016 USD ($) Project
Real Estate Properties [Line Items]
Number of projects classified as held for sale \| Project	0	0
Impairment (reversal) charges	$ 526	$ 2,425
Washington D.C. [Member]
Real Estate Properties [Line Items]
Impairment (reversal) charges	$ 500	2,400
Settlement Agreement [Member] \| Washington D.C. [Member]
Real Estate Properties [Line Items]
Portion of land purchase deposit refundable		$ 700

Real Estate Inventories - Summary of Real Estate Held for Development and Sale (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Real Estate Properties [Line Items]
Real estate inventories	$ 44,711	$ 49,842
Land and Land Development Costs [Member]
Real Estate Properties [Line Items]
Real estate inventories	24,304	33,355
Cost of Construction (Including Capitalized Interest and Real Estate Taxes) [Member]
Real Estate Properties [Line Items]
Real estate inventories	$ 20,407	$ 16,487

Fixed Assets, Net - Fixed Assets are Carried at Cost Less Accumulated Depreciation (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Fixed assets, Gross	$ 1,033	$ 801
Less : accumulated depreciation	(724)	(546)
Fixed assets, Net, Total	309	255
Computer Equipment and Capitalized Software [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, Gross	731	704
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, Gross	51	52
Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, Gross	209	$ 45
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, Gross	$ 42

Note Receivable - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Note receivable originated with third party			$ 180
Maturity date of note receivable	Sep. 02, 2019
Fixed interest rate	6.00%
Other assets, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance of note receivable	$ 66	$ 103
Other income, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 5	$ 7

Goodwill And Intangibles - Summary of Purchase Price Allocation (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Jul. 17, 2017
ASSETS
Net Working Capital		$ 141
Net Fixed Assets		180
Intangible Assets		268
Goodwill	$ 1,702	1,702
Total Purchase Price		$ 2,291

Goodwill and Intangibles - Summary of Goodwill and Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Jul. 17, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 1,702	$ 1,702
Intangibles	268
Goodwill and intagibles assets, gross	1,970
Less : accumulated amortization	(31)
Intangible assets, net	$ 1,939

Goodwill and Intangibles - Summary of Future Estimated Amortization Expense (Detail) $ in Thousands	Dec. 31, 2017 USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2018	$ 67
2019	67
2020	67
2021	36
2022 and thereafter	0
Total	$ 237

Other Assets - Summary of Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid project costs		$ 989
Deferred financing cost-line of credit		1,286
Bonds and escrow deposits	$ 380	221
Other	905	846
Other assets, gross	1,285	3,342
Other Assets, accumulated amortization	(669)	(1,230)
Other assets	$ 616	$ 2,112

Accounts Payable and Accrued Liabilities - Accounts Payable and Accrued Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Trade and accrued payables	$ 8,279	$ 6,925
Warranty	258	287	$ 312
Customer deposits	575	497
Other	4	12
Accounts Payable and Accrued Liabilities	$ 9,116	$ 7,721

Debt - Summary of Notes Payable (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Secured-other	$ 1,069
Net secured notes	23,215	$ 26,927
Unsecured financing, net of unamortized deferred financing charges of $55 and $121	1,285	911
Notes payable, unsecured, net of $2.0 and $2.1 million discount and unamortized deferred financing charges, respectively	14,893	15,866
Total	39,393	43,704
Construction Loans [Member] \| Construction Revolvers [Member]
Debt Instrument [Line Items]
Debt instrument, gross	7,337	6,429
Net secured notes	7,300	6,400
Development and Acquisition Notes [Member]
Debt Instrument [Line Items]
Debt instrument, gross	11,584	16,278
Net secured notes	11,600	16,300
Mezzanine Notes [Member]
Debt Instrument [Line Items]
Debt instrument, gross	1,244	1,424
Line of Credit [Member]
Debt Instrument [Line Items]
Debt instrument, gross	2,131	2,929
Net secured notes	2,100	2,900
Secured Debt [Member]
Debt Instrument [Line Items]
Debt instrument, gross	23,365	27,060
Deferred financing charges, net of amortization	$ (150)	$ (133)

Debt - Summary of Notes Payable (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Unsecured Note [Member]
Debt Instrument [Line Items]
Discount and deferred financing charges, net of amortization	$ 55	$ 121
Notes Payable To Related Party [Member]
Debt Instrument [Line Items]
Discount and deferred financing charges, net of amortization	$ 2,000	$ 2,100

Debt - Maturities of Borrowings (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Debt Disclosure [Abstract]
2018	$ 33,510
2019	4,080
2020	124
2021	0
2022 and thereafter	1,679
Total	$ 39,393	$ 43,704

Debt - Additional Information (Detail)							12 Months Ended
Debt - Additional Information (Detail)	May 18, 2018	Apr. 16, 2018	Jan. 15, 2018	Dec. 31, 2017 USD ($) SecurityLoan	Dec. 29, 2015 USD ($)	Oct. 17, 2014 USD ($)	Dec. 31, 2017 USD ($) Promissory_Notes	Dec. 31, 2016 USD ($)	Mar. 31, 2018 USD ($)	Dec. 18, 2014 USD ($)
Line of Credit Facility [Line Items]
Outstanding secured debt				$ 23,215,000			$ 23,215,000	$ 26,927,000
Outstanding borrowings for loan				14,893,000			$ 14,893,000	$ 15,866,000
Unsecured Seller-financed Promissory Note [Member]
Line of Credit Facility [Line Items]
Interest rate for period							4.56%
Debt instrument, gross				$ 700,000			$ 700,000
Number of unsecured seller-financed promissory notes outstanding \| Promissory_Notes							2
Comstock Development Services [Member]
Line of Credit Facility [Line Items]
Credit facility outstanding						$ 10,000,000
Other Purchasers [Member]
Line of Credit Facility [Line Items]
Credit facility outstanding						6,200,000
Comstock Growth Fund [Member]
Line of Credit Facility [Line Items]
Interest rate				11.90%			11.90%	10.40%
Interest payments							$ 1,500,000	$ 1,600,000
Commercial Paper One [Member] \| Unsecured Seller-financed Promissory Note [Member]
Line of Credit Facility [Line Items]
Interest rate				9.50%			9.50%
Debt instrument, gross				$ 100,000			$ 100,000
Debt instrument maturity date							Feb. 27, 2020
Commercial Paper One [Member] \| Prime Rate [Member] \| Unsecured Seller-financed Promissory Note [Member]
Line of Credit Facility [Line Items]
Debt instrument spread variable rate							5.00%
Commercial Paper Two [Member] \| Unsecured Seller-financed Promissory Note [Member]
Line of Credit Facility [Line Items]
Debt instrument, gross				600,000			$ 600,000
Debt instrument maturity date							Jul. 17, 2022
Commercial Paper Two [Member] \| LIBOR Rate [Member] \| Unsecured Seller-financed Promissory Note [Member]
Line of Credit Facility [Line Items]
Debt instrument spread variable rate							3.00%
Notes Payable, Other Payables [Member] \| Comstock Growth Fund II, L.C. [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity					$ 10,000,000
Credit facility outstanding					$ 5,000,000
Debt instrument, term					2 years
Outstanding borrowings for loan				3,600,000			$ 3,600,000	3,300,000
Line of credit facility additional extension period					1 year
Debt instrument, interest rate					10.00%
Debt instrument, interest payment terms							Interest payments will be accrued and paid in kind monthly for the first year, and then paid current monthly in arrears beginning December 31, 2016
Notes Payable, Other Payables [Member] \| Comstock Growth Fund [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity						$ 20,000,000				$ 25,000,000
Debt instrument, interest rate description							LIBOR
Interest rate floor						10.00%
Debt instrument, term						3 years
Debt instrument, initial principal amount						$ 10,000,000
Loan annual principal repayment, percentage						10.00%
Principal payments to CGF							$ 1,500,000	1,600,000
Notes Payable, Other Payables [Member] \| Comstock Growth Fund [Member] \| LIBOR Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument spread variable rate						9.75%
Construction Loans [Member] \| Subsequent Events [Member]
Line of Credit Facility [Line Items]
Debt instrument maturity date		Apr. 16, 2018	Jan. 15, 2018
Construction Loans [Member] \| Construction Revolvers [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity				24,800,000			24,800,000	26,600,000
Unused construction loan commitments				$ 17,500,000			$ 17,500,000	$ 20,200,000
Debt instrument, interest rate description							Interest rates charged under these facilities include the London Interbank Offered Rate ("LIBOR") and prime rate pricing options, subject to minimum interest rate floors.
Outstanding construction revolving facilities				4.70%			4.70%	4.60%
Outstanding secured debt				$ 7,300,000			$ 7,300,000	$ 6,400,000
Maturity range, start date							2018-01
Maturity range, end date							2019-02
Credit facility outstanding				5,200,000			$ 5,200,000
Debt instrument, gross				7,337,000			7,337,000	6,429,000
Construction Loans [Member] \| Construction Revolvers [Member] \| Due December 2017 [Member] \| Subsequent Events [Member]
Line of Credit Facility [Line Items]
Outstanding secured debt									$ 7,400,000
Development and Acquisition Notes [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity				28,500,000			28,500,000	27,800,000
Outstanding secured debt				11,600,000			$ 11,600,000	16,300,000
Maturity range, start date							2018-01
Maturity range, end date							2019-03
Debt instrument, gross				$ 11,584,000			$ 11,584,000	16,278,000
Development and Acquisition Notes [Member] \| Subsequent Events [Member]
Line of Credit Facility [Line Items]
Debt instrument maturity date	Mar. 15, 2018
Development and Acquisition Notes [Member] \| Minimum [Member] \| LIBOR and Prime Rate Pricing Options [Member]
Line of Credit Facility [Line Items]
Interest rate floor				7.10%			7.10%
Development and Acquisition Notes [Member] \| Maximum [Member] \| LIBOR and Prime Rate Pricing Options [Member]
Line of Credit Facility [Line Items]
Interest rate floor				5.20%			5.20%
Second and Third Mezzanine Notes [Member]
Line of Credit Facility [Line Items]
Outstanding secured debt				$ 1,200,000			$ 1,200,000	1,400,000
Credit facility outstanding				$ 1,100,000			$ 1,100,000
Interest rate				12.00%			12.00%
Interest rate paid on a monthly basis							6.00%
Interest rate accrued and paid on maturity							6.00%
Line of Credit [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity				$ 3,000,000			$ 3,000,000	3,000,000
Outstanding secured debt				$ 2,100,000			$ 2,100,000	$ 2,900,000
Interest rate floor				5.00%			5.00%
Interest rate for period							5.00%	5.00%
Debt instrument maturity description							This line of credit is secured by the first priority security interest in the Company's wholly owned subsidiaries in the Washington, D.C., metropolitan area and is used to finance the predevelopment related expenses and deposits for current and future projects. This line of credit bears a variable interest rate tied to one-month LIBOR plus 3.25% per annum, with an interest rate floor of 5.0%.
Line of credit maturity date							Jun. 30, 2018
Debt instrument, gross				$ 2,131,000			$ 2,131,000	$ 2,929,000
Line of Credit [Member] \| LIBOR Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument spread variable rate							3.25%
Unsecured Note [Member]
Line of Credit Facility [Line Items]
Debt instrument, interest rate description							LIBOR plus 2.2%
Interest rate				3.60%			3.60%	2.90%
Debt instrument, gross				$ 600,000			$ 600,000	$ 1,000,000
Debt instrument maturity date							Dec. 28, 2018
Debt instrument, term							10 years
Unsecured Note [Member] \| LIBOR Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument spread variable rate							2.20%
Unsecured Notes Payable To Affiliate [Member] \| Comstock Growth Fund [Member]
Line of Credit Facility [Line Items]
Outstanding borrowings for loan				$ 11,300,000			$ 11,300,000	$ 12,600,000
Secured Other [Member]
Line of Credit Facility [Line Items]
Number of secured loan \| SecurityLoan				1
Debt instrument, gross				$ 1,100,000			$ 1,100,000
Fixed interest rate				6.00%			6.00%
Debt instrument maturity date				Oct. 17, 2022

Commitments and Contingencies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Other Commitments [Line Items]
Outstanding letter of credit, amount	$ 1,100,000	$ 1,100,000
Amounts drawn against outstanding letters of credit or performance bond	0	0
Restricted Escrow Deposits	1,000,000	800,000
Performance Bonds [Member]
Other Commitments [Line Items]
Outstanding performance and payment of bonds	$ 4,000,000	$ 4,200,000

Fair Value Disclosures - Summary of Carrying Amount and Fair Value of Fixed and Floating Rate Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt instrument outstanding balance	$ 39,393	$ 43,704
Unobservable Inputs (Level 3 Inputs) [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt instrument outstanding balance	39,393	43,704
Fair value	$ 38,899	$ 44,986

Fair Value Disclosures - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Option, Quantitative Disclosures [Line Items]
Impairment charges	$ 526	$ 2,425
Impairment charges and recovery, net	(526)	(1,703)
Washington D.C. [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Impairment charges	$ 500	2,400
Impairment charges and recovery, net		$ 700

Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Defined Contribution Plan Disclosure [Line Items]
Total employee contributions	$ 35	$ 56
Vesting period	6 years
Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Gross employee contribution	100.00%
Each participant's gross salary	4.00%
Minimum [Member]
Defined Contribution Plan Disclosure [Line Items]
Gross employee contribution	50.00%
Each participant's gross salary	3.00%

Restricted Stock, Stock Options and Other Stock Plans - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
	Dec. 14, 2004	Dec. 31, 2017	Dec. 31, 2016	Nov. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average remaining contractual term of unexercised stock options		8 years 6 months	4 years 9 months 18 days
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted by the company			0
Class A [Member] \| November 2014 New Share Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining common stock available for repurchase under share repurchase program		404,000	404,000
2004 Long-Term Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long-term compensation plan stock option expiration period	10 years
Unrecognized compensation cost related to stock issuances		$ 0.6	$ 0.1
2004 Long-Term Compensation Plan [Member] \| Class A [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized increase in number of shares		1,000,000
Shares issued		107
Description of additional shares authorized for issuance under long-term compensation plan		The Plan provided an initial authorization of 0.4 million shares of Class A common stock for issuance and allows an automatic annual increase equal to the lesser of (i) 3% of the Class A common stock outstanding (ii) 107 shares or (iii) such lesser amount as may be determined by the Company’s board of directors.
Shares available for issuance under long-term compensation plan		400,000	300,000
Percentage of additional shares authorized issuable under long-term compensation plan		3.00%
Minimum [Member] \| 2004 Long-Term Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long-term compensation plan vesting period	1 year
Maximum [Member] \| Class A [Member] \| November 2014 New Share Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
New share repurchase program, shares authorized to repurchase				429,000
Maximum [Member] \| 2004 Long-Term Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long-term compensation plan vesting period	5 years

Restricted Stock, Stock Options and Other Stock Plans - Summary of Assumptions Used to Calculate Fair Value of Options (Detail)	12 Months Ended
	Dec. 31, 2017 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Weighted average fair value of options granted	$ 1.20
Dividend yields	0.00%
Expected volatility, minimum	70.60%
Expected volatility, maximum	79.40%
Weighted average expected volatility	72.73%
Risk free interest rates	2.15%
Weighted average expected term (in years)	6 years 2 months 30 days

Restricted Stock, Stock Options and Other Stock Plans - Summary Information about Stock Option Activity (Detail) - 2004 Long-Term Compensation Plan [Member] - Stock Options [Member] - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance, Shares	112	174
Granted, Shares	345
Exercised, Shares	0	0
Forfeited or Expired, Shares	(21)	(62)
Ending balance, Shares	436	112
Exercisable, Shares	86
Weighted Average Exercise Price, Beginning balance	$ 8.16	$ 8.39
Weighted Average Exercise Price, Granted	1.89
Weighted Average Exercise Price, Exercised	0	0
Weighted Average Exercise Price, Forfeited or Expired	7.06	8.82
Weighted Average Exercise Price, Ending balance	3.25	$ 8.16
Weighted Average Exercise Price, Exercisable	$ 8.46

Restricted Stock, Stock Options and Other Stock Plans - Summary of Company's Restricted Share Activity (Detail) - Restricted Stock Awards [Member] - 2004 Long-Term Compensation Plan [Member] - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares, Beginning balance	20	12
Restricted shares, Granted	245	20
Restricted shares, Vested	(22)	(12)
Restricted shares, Forfeited or Expired	0	0
Restricted shares, Ending balance	243	20
Weighted Average Grant Date Fair Value, Beginning balance	$ 1.89	$ 12.42
Weighted Average Grant Date Fair Value, Granted	2.13	1.89
Weighted Average Grant Date Fair Value, Vested	1.88	12.42
Weighted Average Grant Date Fair Value, Forfeited or Expired	0	0
Weighted Average Grant Date Fair Value, Ending balance	$ 2.16	$ 1.89

Consolidation of Variable Interest Entities - Additional Information (Detail)	1 Months Ended					12 Months Ended
	Oct. 31, 2017 USD ($) shares	Jan. 31, 2017 USD ($)	Aug. 31, 2016 USD ($) shares	Jun. 30, 2015 USD ($)	Dec. 31, 2013 USD ($) Townhomes shares	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Oct. 31, 2016 USD ($)	Aug. 23, 2012 Unit
Variable Interest Entity [Line Items]
Distribution to non-controlling interests						$ 6,432,000	$ 4,938,000
Warrants issued \| shares	50,000
Total liabilities of VIEs						15,900,000	18,500,000
Total assets of VIEs						30,600,000	38,100,000
New Hampshire Avenue, LLC [Member]
Variable Interest Entity [Line Items]
Number of projects \| Unit									111
Distribution to non-controlling interests						0	1,900,000
Comstock Investors VIII, L.C [Member]
Variable Interest Entity [Line Items]
Distribution to non-controlling interests							3,100,000
Cumulative, compounded, preferred return rate					20.00%
Percentage of cumulative cash on cash return					20.00%
Comstock Investors VIII, L.C [Member] \| Maryland [Member]
Variable Interest Entity [Line Items]
Number of townhomes \| Townhomes					45
Comstock Investors VIII, L.C [Member] \| Virginia [Member]
Variable Interest Entity [Line Items]
Number of townhomes \| Townhomes					42
Comstock Investors VIII, L.C [Member] \| Class A [Member]
Variable Interest Entity [Line Items]
Number of warrants issued \| shares					15
Aggregate fair value of warrants for investors					$ 131,000
Comstock Investors VIII, L.C [Member] \| Class B [Member]
Variable Interest Entity [Line Items]
Distribution to non-controlling interests		$ 1,900,000
Comstock Investors VIII, L.C [Member] \| Subsidiaries [Member] \| Private Placement [Member] \| Class B [Member]
Variable Interest Entity [Line Items]
Initial aggregate principal amount up to capital raise					$ 4,000,000
Comstock Investors IX, L.C. [Member]
Variable Interest Entity [Line Items]
Cumulative, compounded, preferred return rate				20.00%
Percentage of cumulative cash on cash return				20.00%
Preferred distribution							0
Payments to acquire remaining equity interest	$ 3,500,000
Comstock Investors IX, L.C. [Member] \| Subsidiaries [Member] \| Private Placement [Member] \| Class B [Member]
Variable Interest Entity [Line Items]
Initial aggregate principal amount up to capital raise				$ 2,500,000
Comstock Investors X, L.C. [Member]
Variable Interest Entity [Line Items]
Distribution to non-controlling interests						$ 1,000,000	$ 0
Cumulative, compounded, preferred return rate			6.00%
Aggregate capital raise	19,500,000
Additional capital raised	5,000,000
Aggregate fair value	$ 258,000
Comstock Investors X, L.C. [Member] \| Class A [Member]
Variable Interest Entity [Line Items]
Number of warrants issued \| shares			150
Aggregate fair value of warrants for investors			$ 258,000
Comstock Investors X, L.C. [Member] \| Private Placement [Member]
Variable Interest Entity [Line Items]
Aggregate capital raise								$ 14,500,000
Comstock Investors X, L.C. [Member] \| Subsidiaries [Member] \| Private Placement [Member] \| Class B [Member]
Variable Interest Entity [Line Items]
Initial aggregate principal amount up to capital raise			$ 5,000,000
Comstock Development Services LC [Member] \| Private Placement [Member]
Variable Interest Entity [Line Items]
Aggregate capital raise								$ 9,500,000

Related Party Transactions - Additional Information (Detail) - USD ($)					12 Months Ended
	Mar. 22, 2017	Dec. 29, 2015	May 12, 2015	Oct. 17, 2014	Dec. 31, 2017	Dec. 31, 2016	Dec. 18, 2014
Related Party Transaction [Line Items]
Future minimum lease payments					$ 200,000
Trade receivables					145,000	$ 132,000
Outstanding borrowings					14,893,000	15,866,000
Gains on extinguishment of Series B preferred stock and issuance of Series C preferred stock	$ 1,011
Comstock Asset Management, L.C. [Member]
Related Party Transaction [Line Items]
Total rental payments made under lease agreement					200,000	300,000
Rent expense					$ 200,000	$ 300,000
Comstock Development Services [Member]
Related Party Transaction [Line Items]
Credit facility outstanding				$ 10,000,000
Other Purchasers [Member]
Related Party Transaction [Line Items]
Credit facility outstanding				6,200,000
Stonehenge [Member]
Related Party Transaction [Line Items]
Original principal amount		$ 4,500,000
Principal amount outstanding plus all accrued but unpaid interest		$ 3,900,000
Series B Preferred Stock [Member]
Related Party Transaction [Line Items]
Preferred stock par value					$ 0.01	$ 0.01
Paid-in-kind dividends on preferred stock, number of shares					15,663	69,639
Paid-in-kind dividends on preferred stock, liquidation value					$ 78,000	$ 348,000
Shares exchanged pursuant to agreement, converted	858,210
Series B Preferred Stock [Member] \| Stonehenge [Member]
Related Party Transaction [Line Items]
Shares issued upon conversion of debt		772,210
Preferred stock par value		$ 0.01
Preferred stock redemption price		$ 5.00
Preferred stock dividend rate, percentage		8.75%
Series C Preferred Stock [Member]
Related Party Transaction [Line Items]
Preferred stock par value					$ 0.01	$ 0.01
Shares exchanged pursuant to agreement, issued	772,210
Par value per share	$ 0.01
Stated value per share	$ 5.00
Class A [Member] \| Comstock Growth Fund [Member] \| Private Placement [Member]
Related Party Transaction [Line Items]
Number of shares issued			226,857
Trade Receivables [Member] \| Comstock Asset Management, L.C. [Member]
Related Party Transaction [Line Items]
Trade receivables					$ 145,000	$ 132,000
Services and out of Pocket Expenses Incurred [Member] \| Revenue Other [Member] \| Comstock Asset Management, L.C. [Member]
Related Party Transaction [Line Items]
Services and out-of-pocket expenses incurred					1,100,000	900,000
Notes Payable, Other Payables [Member] \| Comstock Growth Fund [Member]
Related Party Transaction [Line Items]
Debt instrument, initial principal amount				10,000,000
Maximum borrowing amount				$ 20,000,000			$ 25,000,000
Additional aggregate principal loan amount					6,200,000
Credit facility outstanding					$ 16,200,000
Debt instrument, term				3 years
Debt instrument, interest rate description					LIBOR
Loan annual principal repayment, percentage				10.00%
Notes Payable, Other Payables [Member] \| Comstock Growth Fund II, L.C. [Member]
Related Party Transaction [Line Items]
Credit facility outstanding		$ 5,000,000
Maximum borrowing amount		$ 10,000,000
Debt instrument, term		2 years
Debt instrument, floor interest rate		10.00%
Line of credit facility additional extension period		1 year
Debt instrument, interest payment terms					Interest payments will be accrued and paid in kind monthly for the first year, and then paid current monthly in arrears beginning December 31, 2016
Outstanding borrowings					$ 3,600,000	3,300,000
Comstock Growth Fund II, L.C. [Member] \| Comstock Growth Fund II, L.C. [Member]
Related Party Transaction [Line Items]
Debt instrument, initial principal amount		$ 5,000,000
Maximum borrowing amount		$ 10,000,000
Debt instrument, term		2 years
Debt instrument, floor interest rate		10.00%
Line of credit facility additional extension period		1 year
Line of credit facility extension fees		$ 10,000,000
Debt instrument, interest payment terms					Interest payments will be accrued and paid in kind monthly for the first year, and then paid current monthly in arrears beginning December 31, 2016.
Outstanding borrowings					$ 3,600,000	$ 3,300,000
LIBOR Rate [Member] \| Notes Payable, Other Payables [Member] \| Comstock Growth Fund [Member]
Related Party Transaction [Line Items]
Debt instrument, spread variable rate				9.75%
Floor Rate [Member] \| Notes Payable, Other Payables [Member] \| Minimum [Member] \| Comstock Growth Fund [Member]
Related Party Transaction [Line Items]
Debt instrument, floor interest rate				10.00%

Warrants - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Oct. 31, 2017	Dec. 31, 2017	Aug. 31, 2016
Comstock Investors X, L.C. [Member]
Class of Stock [Line Items]
Additional capital raised	$ 5,000
Class A [Member] \| BridgeCom [Member]
Class of Stock [Line Items]
Warrant exercise date		Jul. 12, 2021
Warrant exercise price		$ 7.21
Class A [Member] \| Comstock Investors VII, L.C [Member]
Class of Stock [Line Items]
Initial investment amount		$ 250
Warrant exercise date		Mar. 14, 2023
Trading days preceding the issuance of warrant		20 days
Class A [Member] \| Comstock Investors VIII, L.C [Member]
Class of Stock [Line Items]
Initial investment amount		$ 250
Warrant exercise date		Dec. 12, 2023
Trading days preceding the issuance of warrant		20 days
Class A [Member] \| Comstock Investors X, L.C. [Member]
Class of Stock [Line Items]
Common stock and warrants exercisable	50	150	150
Warrant exercise date	Oct. 16, 2027	Aug. 15, 2026
Trading days preceding the issuance of warrant		20 days
Class A [Member] \| Minimum [Member] \| Comstock Growth Fund [Member]
Class of Stock [Line Items]
Warrant exercise price		$ 4.91
Class A [Member] \| Minimum [Member] \| Comstock Growth Fund [Member] \| Affiliates and Insiders [Member]
Class of Stock [Line Items]
Warrant exercise price		$ 7.30
Class A [Member] \| Maximum [Member] \| BridgeCom [Member]
Class of Stock [Line Items]
Common stock and warrants exercisable		143
Class A [Member] \| Maximum [Member] \| Comstock Growth Fund [Member]
Class of Stock [Line Items]
Common stock and warrants exercisable		76
Warrant exercise period from date of issuance		10 years
Warrant exercise price		$ 7.63
Class A [Member] \| Maximum [Member] \| Comstock Growth Fund [Member] \| Affiliates and Insiders [Member]
Class of Stock [Line Items]
Warrant exercise price		$ 7.63
Class A [Member] \| Maximum [Member] \| Comstock Investors VII, L.C [Member]
Class of Stock [Line Items]
Common stock and warrants exercisable		16
Class A [Member] \| Maximum [Member] \| Comstock Investors VIII, L.C [Member]
Class of Stock [Line Items]
Common stock and warrants exercisable		15

Unconsolidated Joint Venture - Additional Information (Detail) - Title Insurance Joint Venture [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
Earnings from the unconsolidated joint venture	$ 53	$ 87
Collected total distributions from joint venture	83	102
Other assets, net [Member]
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint venture	$ 27	$ 54

Unconsolidated Joint Venture - Summarized Unaudited Financial Information for Unconsolidated Joint Venture (Detail) - Title Insurance Joint Venture [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Statement of Operations:
Total net revenue	$ 219	$ 290
Total expenses	114	117
Net income	105	173
Comstock Holding Companies, Inc. share of net income	$ 53	$ 87

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Examination [Line Items]
Income tax expense (benefit)		$ 38,000	$ 55,000
Effective tax rate		0.91%	0.82%
Corporate federal income tax rate		35.00%	35.00%
Decrease in net deferred tax assets		$ 20,000,000
Federal and state Net Operating Losses		$ 144,000,000
Year of expiration of net operating loss carryforward expiration year		2027
Specified time period for ownership change		3 years
Accruals related to uncertainties tax positions		$ 0	$ 0
Scenario, Plan [Member]
Income Tax Examination [Line Items]
Corporate federal income tax rate	21.00%
Minimum [Member]
Income Tax Examination [Line Items]
Percentage of ownership change		50.00%
Percentage of change in ownership of shareholders		1.00%
Tax year remain subject to examination		2014
Maximum [Member]
Income Tax Examination [Line Items]
Percentage of change in ownership of shareholders		5.00%
Tax year remain subject to examination		2016

Income Taxes - Schedule of Income Tax Provision (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Current:
Federal	$ 0	$ 0
State	24	37
Current Income Tax Expense Total	24	37
Deferred:
Federal	15,171	3,967
State	2,724	742
Deferred Income Tax Expense Total	17,895	4,709
Valuation allowance	(17,881)	(4,691)
Total income tax expense	$ 38	$ 55

Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Inventory	$ 834	$ 1,766
Warranty	67	113
Net operating loss and tax credit carryforwards	37,045	53,721
Accrued expenses	4	7
Stock based compensation	352	387
Investment in affiliates	48
Deferred tax assets gross	38,350	55,994
Less-valuation allowance	(38,328)	(55,739)
Net deferred tax assets	22	255
Deferred tax liabilities:
Depreciation and amortization	(21)	(46)
Investment in affiliates		(209)
Goodwill amortization	(15)
Net deferred tax liabilities	(36)	$ (255)
Net deferred tax assets (liabilities)	$ (14)

Income Taxes - Reconciliation of Statutory and Effective Tax Rate After Adjustments for Non-Includable Partnership Income Arising from Non-Controlling Interest (Detail)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Federal statutory rate	(35.00%)	(35.00%)
State income taxes-net of federal benefit	(3.90%)	(3.90%)
Permanent differences	(10.94%)	(12.87%)
Return to provision adjustments	5.18%	(18.16%)
Change in valuation allowance	(417.08%)	69.93%
Current state income tax	0.56%	0.82%
Change in enacted rate	462.23%	0.00%
Other, net	(0.15%)	0.00%
Effective tax rate	0.91%	0.82%

Preferred Stock - Additional Information (Detail) - USD ($)		12 Months Ended
	Mar. 22, 2017	Dec. 31, 2017	Dec. 31, 2016
Class of Stock [Line Items]
Gains on extinguishment of Series B preferred stock and issuance of Series C preferred stock	$ 1,011
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Paid-in-kind dividends on preferred stock, number of shares		15,663	69,639
Paid-in-kind dividends on preferred stock, liquidation value		$ 78,000	$ 348,000
Shares exchanged pursuant to agreement, converted	858,210
Series C Preferred Stock [Member]
Class of Stock [Line Items]
Shares exchanged pursuant to agreement, issued	772,210
Par value per share	$ 0.01
Stated value per share	$ 5.00

Quarterly Results (unaudited) - Quarterly Results Financial Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 10,827	$ 13,815	$ 10,520	$ 10,268	$ 8,793	$ 13,103	$ 9,978	$ 9,706	$ 45,430	$ 41,580
Operating loss	(2,366)	(1,193)	(563)	(684)	(3,297)	(854)	(1,442)	(1,271)	(4,806)	(6,864)
Loss before income tax expense	(2,369)	(1,172)	(535)	(664)	(3,259)	(756)	(1,429)	(1,263)	(4,740)	(6,707)
Net (loss) income	(2,378)	(1,201)	(535)	(664)	(3,257)	(756)	(1,461)	(1,288)	(4,778)	(6,762)
Net income (loss) attributable to common stockholders	$ (3,225)	$ (1,510)	$ 387	$ 286	$ (4,576)	$ (1,046)	$ (1,995)	$ (1,724)	$ (5,025)	$ (8,993)
Basic income (loss) per share	$ (0.98)	$ (0.45)	$ 0.12	$ 0.09	$ (1.38)	$ (0.34)	$ (0.60)	$ (0.55)	$ (1.21)	$ (2.81)
Diluted income (loss) per share	$ (0.98)	$ (0.45)	$ 0.11	$ 0.08	$ (1.38)	$ (0.34)	$ (0.60)	$ (0.55)	$ (1.21)	$ (2.81)

Subsequent Events - Additional Information (Detail) - USD ($) $ in Thousands	May 18, 2018	Apr. 16, 2018	Jan. 15, 2018	Dec. 31, 2017	Dec. 31, 2016
Subsequent Event [Line Items]
Outstanding principal and interest, net of discounts				$ 39,393	$ 43,704
Comstock Asset Management, L.C. [Member]
Subsequent Event [Line Items]
Fixed annual payment				1,000,000
Construction Loans [Member] \| Subsequent Events [Member]
Subsequent Event [Line Items]
Loan maturity date		Apr. 16, 2018	Jan. 15, 2018
Debt instrument extended maturity date		Apr. 16, 2019	Jan. 19, 2019
Construction Loans [Member] \| Construction Revolvers [Member]
Subsequent Event [Line Items]
Credit facility outstanding				5,200
Construction Loans [Member] \| Credit Facility [Member]
Subsequent Event [Line Items]
Outstanding principal and interest, net of discounts				11,300
Development and Acquisition Notes [Member] \| Subsequent Events [Member]
Subsequent Event [Line Items]
Loan maturity date	Mar. 15, 2018
Debt instrument extended maturity date	Jun. 15, 2018
Development and Acquisition Notes [Member] \| Credit Facility [Member]
Subsequent Event [Line Items]
Credit facility outstanding				$ 2,200

Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Dec. 31, 2017
Retirement Benefits [Abstract]
Employee Benefit Plans	13. EMPLOYEE BENEFIT PLANS The Company maintains a defined contribution retirement savings plan pursuant to Section 401(k) of the Internal Revenue Code (the “Code”). Eligible participants may contribute a portion of their compensation to their respective retirement accounts in an amount not to exceed the maximum allowed under the Code. The Company matches 100% of the employee’s contribution, up to 3% of each participant’s gross salary and 50% of the employee’s contribution above 3% not exceeding 4% of the participant’s gross salary, per pay period. Contributions made by the Company become fully vested after six years of service. The total amount matched during the years ended December 31, 2017 and 2016 was $35 and $56, respectively.

Goodwill and Intangibles - Additional Information (Detail) $ in Millions	Jul. 17, 2017 USD ($)
Schedule Of Goodwill And Intangible Assets [Line Items]
Measurement period	1 year
JK Environmental Services LLC [Member]
Schedule Of Goodwill And Intangible Assets [Line Items]
Purchase price of business assets	$ 2.3