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Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Dec. 31, 2018	Mar. 20, 2019	Jun. 30, 2018
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2018
Document Fiscal Year Focus	2018
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	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 4,405,580
Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		3,663,843
Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		220,250

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 5,780	$ 1,806
Restricted cash	1,231	1,141
Trade receivables	1,329	491
Trade receivables - related parties	2,950	145
Real estate inventories	20,253	44,711
Fixed assets, net	221	309
Goodwill	1,702	1,702
Intangible assets, net	170	237
Other assets, net	1,464	616
TOTAL ASSETS	35,100	51,158
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable and accrued liabilities	7,614	9,116
Deferred revenue	1,875	0
Notes payable - secured by real estate inventories, net of deferred financing charges	13,432	23,215
Notes payable - due to affiliates, unsecured, net of discount	4,903	14,893
Notes payable - unsecured, net of deferred financing charges	595	1,285
Income taxes payable	51	39
TOTAL LIABILITIES	28,470	48,548
Commitments and contingencies (Note 11)
STOCKHOLDERS’ EQUITY
Additional paid-in capital	180,673	177,612
Accumulated deficit	(194,319)	(189,803)
TOTAL COMSTOCK HOLDING COMPANIES, INC. DEFICIT	(9,076)	(14,376)
Non-controlling interests	15,706	16,986
TOTAL EQUITY	6,630	2,610
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	35,100	51,158
Series C Preferred Stock [Member]
STOCKHOLDERS’ EQUITY
Series C preferred stock, $0.01 par value, 3,000,000 shares authorized, 2,799,848 and 579,158 shares issued and outstanding with a liquidation preference of $13,999 and $2,896 at December 31, 2018 and 2017, respectively	7,193	442
TOTAL EQUITY	7,193	442
Class A [Member]
STOCKHOLDERS’ EQUITY
Common stock	37	33
Treasury stock, at cost (85,570 shares Class A common stock)	(2,662)	(2,662)
TOTAL EQUITY	37	33
Class B [Member]
STOCKHOLDERS’ EQUITY
Common stock	2	2
TOTAL EQUITY	$ 2	$ 2

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
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	2,799,848	579,158
Preferred Stock, shares outstanding	2,799,848	579,158
Preferred Stock, liquidation value	$ 13,999	$ 2,896
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	3,703,513	3,295,518
Common stock, shares outstanding	3,617,943	3,209,948
Treasury stock, shares	85,570	85,570
Class B [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	220,250	220,250
Common stock, shares issued	220,250	220,250
Common stock, shares outstanding	220,250	220,250

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenues
Total revenue	$ 56,749	$ 45,430
Expenses
Impairment charges	2,232	526
Sales and marketing	1,005	1,490
General and administrative	1,262	5,297
Interest and real estate tax expense	171	41
Operating loss	(5,101)	(4,806)
Other income, net	135	66
Loss before income tax benefit (expense)	(4,966)	(4,740)
Income tax benefit (expense)	920	(38)
Net loss	(4,046)	(4,778)
Net income attributable to non-controlling interests	470	247
Net loss attributable to Comstock Holding Companies, Inc.	(4,516)	(5,025)
Paid-in-kind dividends on Series B Preferred Stock	0	78
Extinguishment of Series B Preferred Stock	0	(1,011)
Net loss attributable to common stockholders	$ (4,516)	$ (4,092)
Basic loss per share	$ (1.22)	$ (1.21)
Diluted loss per share	$ (1.22)	$ (1.21)
Basic weighted average shares outstanding	3,705	3,370
Diluted weighted average shares outstanding	3,705	3,370
Homebuilding [Member]
Revenues
Total revenue	$ 41,245	$ 43,399
Expenses
Cost of sales	42,799	40,585
Asset Management [Member]
Revenues
Total revenue	12,473	0
Expenses
Cost of sales	11,291	0
Real Estate Services [Member]
Revenues
Total revenue	3,031	2,031
Expenses
Cost of sales	$ 3,090	$ 2,297

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, 2016	$ 8,377	$ 176,251	$ (2,662)	$ (184,778)	$ 18,252	$ 1,280	$ 0	$ 30	$ 4
Beginning Balance, shares at Dec. 31, 2016						842,000	0	3,035,000	390,000
Stock compensation and issuances	532	531	0	0	0	$ 0	$ 0	$ 1	$ 0
Stock compensation and issuances, shares						0	0	90,000	0
Series B conversion to Series C	0	715	0	0	0	$ (1,304)	$ 589	$ 0	$ 0
Series B Conversion to Series C, shares						(858,000)	772,000	0	0
Stock repurchases and issuances	(89)	58	0	0	0	$ 0	$ (147)	$ 2	$ (2)
Stock repurchases and issuances, shares						0	(193,000)	170,000	(170,000)
Dividends paid in-kind	0	(24)	0	0	0	$ 24	$ 0	$ 0	$ 0
Dividends paid in-kind, shares						15,663	0	0	0
Non-controlling interest contributions	5,000	81	0	0	4,919	$ 0	$ 0	$ 0	$ 0
Non-controlling interest distributions	(6,432)	0	0	0	(6,432)	0	0	0	0
Net (loss) income	(4,778)	0	0	(5,025)	247	0	0	0	0
Ending Balance at Dec. 31, 2017	2,610	177,612	(2,662)	(189,803)	16,986	$ 0	$ 442	$ 33	$ 2
Ending Balance, shares at Dec. 31, 2017						0	579,000	3,295,000	220,000
Stock compensation and issuances	261	257	0	0	0	$ 0	$ 0	$ 4	$ 0
Stock compensation and issuances, shares						0	0	427,000	0
Accrued liability settled through issuance of stock	131	131	0	0	0	$ 0	$ 0	$ 0	$ 0
Shares withheld related to net share settlementof restricted stock awards	(38)	(38)	0	0	0	$ 0	$ 0	$ 0	$ 0
Shares withheld related to net share settlement of restricted stock awards, shares						0	0	(19,000)	0
Series C preferred stock conversion of CGF I & II	9,462	2,711	0	0	0	$ 0	$ 6,751	$ 0	$ 0
Series C preferred stock conversion of CGF I & II, Shares						0	2,221,000
Non-controlling interest distributions	(1,750)	0	0	0	(1,750)	$ 0	$ 0	0	0
Net (loss) income	(4,046)	0	0	(4,516)	470	0	0	0	0
Ending Balance at Dec. 31, 2018	$ 6,630	$ 180,673	$ (2,662)	$ (194,319)	$ 15,706	$ 0	$ 7,193	$ 37	$ 2
Ending Balance, shares at Dec. 31, 2018						0	2,800,000	3,703,000	220,000

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net loss	$ (4,046)	$ (4,778)
Adjustment to reconcile net loss to net cash provided by operating activities
Amortization of loan discount, loan commitment and deferred financing fees	318	1,105
Deferred income tax benefit	(936)	0
Depreciation expense	168	181
Earnings from unconsolidated joint venture, net of distributions	48	30
Stock compensation	234	346
Impairment charges	2,232	526
Changes in operating assets and liabilities:
Trade receivables	(3,643)	271
Real estate inventories	22,399	4,778
Other assets	(935)	787
Accrued interest	(103)	107
Accounts payable and accrued liabilities	504	1,356
Income taxes payable	12	20
Net cash provided by operating activities	16,252	4,729
Cash flows from investing activities:
Business acquisition, net of cash acquired	0	(579)
Purchase of fixed assets	(80)	(54)
Principal received on note receivable	39	37
Net cash used in investing activities	(41)	(596)
Cash flows from financing activities:
Proceeds from notes payable	19,030	23,517
Payments on notes payable	(29,191)	(29,947)
Loan financing costs	(198)	(234)
Distributions to non-controlling interests	(1,750)	(6,432)
Contributions from non-controlling interests	0	5,000
Repurchase of Series C Preferred Stock	0	(89)
Taxes paid related to net share settlement of equity awards	(38)	0
Net cash used in financing activities	(12,147)	(8,185)
Net increase (decrease) in cash and cash equivalents	4,064	(4,052)
Cash, restricted cash, and cash equivalents, beginning of period	2,947	6,999
Cash, restricted cash, and cash equivalents, end of period	7,011	2,947
Supplemental cash flow information:
Interest paid, net of interest capitalized	(190)	(493)
Income taxes paid	(8)	(18)
Supplemental disclosure for non-cash activity:
Business acquisition notes payable	0	1,710
Seller's note payable	0	115
Accrued liability settled through issuance of stock	131	127
Increase in Series B preferred stock value in connection with dividends paid in-kind	0	24
Conversion of Class B common stock to Class A common stock	0	2
Extinguishment of Series B preferred stock	0	1,011
Increase in Series C preferred stock upon conversion of CGF I & II	6,751	0
Increase in Additional Paid in Capital upon conversion of CGF I & II	2,711	0
Extinguishment of Notes payable - due to affiliates, net of discount	$ (10,402)	$ 0

Organization

12 Months Ended

Dec. 31, 2018

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 these consolidated financial statements 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 finance our Asset Management and Real Estate Services operations, capital expenditures, and business acquisitions with internally generated funds, borrowings from our credit facilities and long-term debt. The winding down of on balance sheet Homebuilding activities will require capital to develop land, to construct homes, to fund related carrying costs and overhead and to fund various advertising and marketing programs to generate sales. Homebuilding activities will continue to be funded by private equity and debt placements (which has included significant participation from Company insiders), funds derived from various secured and unsecured borrowings to finance construction on acquired land, cash flow from operations, which includes the sale and delivery of constructed homes, finished and raw building lots. The Company is involved in ongoing discussions with lenders and equity sources in an effort to provide additional growth capital to fund various new business opportunities. See Note 10 in the accompanying consolidated financial statements for more details on our debt and credit facilities and Note 17 in the accompanying consolidated financial statements for details on private placement offerings in 2018 and 2017.

As of December 31, 2018, $1.8 million of the Company’s secured project related notes were set to mature on March 15, 2019. On March 14, 2019 the Company paid in full the secured project related note. As of March 29, 2019, the Company has successfully repaid all obligations with Lenders through March 29, 2019, as more fully described in Note 10 and Note 21. 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, 2018, $4.9 million of our notes payable to affiliates were set to mature prior to the end of 2019. These funds were primarily obtained from entities wholly owned by our Chief Executive Officer, and the Company maintains the unilateral ability to extend the maturity dates beyond 2019 as needed. The CEO has historically provided financing in the form of debt and equity to the Company, as needed, through investment vehicles as further described in Notes 10 and 15.

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, 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. Refer to Note 10 for further discussion regarding extensions and Note 21 for other subsequent events impacting our credit facilities.

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2018

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 of America (“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 less than 100% 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, 2018 and 2017.

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. 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, 2018 and 2017, the Company had restricted cash of $1.2 million and $1.1 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. 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, 2018 and 2017, 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,
	2018		2017
Total interest incurred and capitalized	$	2,415	$	4,223
Total real estate taxes incurred and capitalized		306		354
Total interest and real estate taxes incurred and capitalized	$	2,721	$	4,577
Interest expensed as a component of cost of sales	$	3,299	$	2,604
Real estate taxes expensed as a component of cost of sales		340		267
Interest and real estate taxes expensed as a component of cost of sales	$	3,639	$	2,871

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,
	2018		2017
Interest incurred and expensed from entity level borrowings	$	97	$	—
Interest incurred and expensed for inactive projects		61		41
Real estate taxes incurred and expensed for inactive projects		13		—
	$	171	$	41

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 relationships, 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 perform our annual goodwill impairment review during our fiscal fourth quarter. 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, significant or unusual changes in market capitalization, 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.

When assessing goodwill for impairment, the Company may first assess qualitative factors to evaluate whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount or elect to bypass such assessment. If it is determined that it is more likely than not that the fair value of a reporting unit is less than its carrying value, or the Company elects to bypass such assessment, the Company then determines the fair value of each reporting unit. The estimate of the fair value of each reporting unit is based on a projected discounted cash flow model that includes significant assumptions and estimates including the Company's discount rate, growth rate and future financial performance. Assumptions about the discount rate are based on a weighted average cost of capital built up from various interest rate components applicable to the Company. Assumptions about the growth rate and future financial performance of a reporting unit are based on the Company's forecasts, business plans, economic projections and anticipated future cash flows. The fair value of each reporting unit is compared to the carrying amount of the reporting unit. If the carrying value of the reporting unit exceeds the fair value, then an impairment loss is recognized for the difference

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,
	2018			2017
Balance at beginning of period	$	258		$	287
Additions		108			178
Releases and/or charges incurred		(171	)		(207	)
Balance at end of period	$	195		$	258

Contract Liabilities

Progress payment balances in excess of revenue recognized, as well as advance payments received from customers, are classified as deferred contract liabilities on the consolidated balance sheet in the financial statement line item titled “Deferred revenue.” Homebuilding purchase deposits are classified as deferred contract liabilities on the consolidated balance sheet in the financial statement line item titled “Accounts payable and accrued liabilities.”

Contract liabilities consisted of the following:

	Years ended December 31,
	2018		2017
Contract Liabilities: Customer Deposits and Deferred Revenue
Homebuilding - Customer Deposits	$	1,189	$	575
Asset Management - Deferred revenue		1,875		—
Total Contract Liabilities	$	3,064	$	575

Deferred Revenue – Asset Management relate to the AMA executed on March 30, 2018 and effective January 2, 2018. See Note 16 – Related Party Transactions for details regarding this transaction.

The Company’s other contract liabilities, that consist of deposits received from customers (“Customer deposits”) on homes not settled, were $1.2 million and $0.6 million as of December 31, 2018 and 2017, respectively. During the year ended December 31, 2018, the Company recognized in revenue approximately $0.5 million of the customer deposits held as of December 31, 2017.

Customer deposits are also included in Note 9 – Accounts Payable and Accrued Liabilities.

Revenue recognition

The Company’s revenues consist primarily of 1) buildout of the remaining projects under the homebuilding platform, 2) recurring fees earned under the AMA, 3) property management, and 4) real estate management and consulting services. All of the Company’s revenue streams are U.S. based and substantially all are accounted for as short-term contracts. As such, the performance obligations required to complete contracts have an expected duration of less than one year. As a result, the Company does not disclose the value of unsatisfied performance obligations for contracts in accordance with the optional exemptions related to the disclosure of transaction price allocation under ASC 606. Additionally, incremental costs of obtaining a contract are recognized as an expense when incurred because the amortization period of the asset would have been recognized in one year or less.

The following table presents the Company’s sales from contracts with customers disaggregated by categories which best represents how the nature, amount, timing and uncertainty of sales are affected by economic factors.

	Years ended December 31,
	2018		2017
Revenue by customer
Individual customers	$	41,245	$	43,399
Related party		12,900		—
Commercial		2,604		2,031
Total Revenue by Customer	$	56,749	$	45,430
Revenue by contract type
Fixed-price	$	42,386	$	43,399
Cost-plus		12,040		—
Time and Material		2,323		2,031
Total Revenue by contract type	$	56,749	$	45,430

Revenue and related profits or losses from homebuilding contracts include the sale of residential properties and units, finished lots and land sales is recognized on the settlement date at the contract sales price, when control is transferred to our customers. These contracts meet the criteria for recognizing revenue at a point in time. As such, these revenues are disaggregated in ‘Individual customers’ and ‘Fixed-price’ in the tables above.

Under the recently executed AMA and most of the Company’s real estate services contracts, performance obligations are satisfied over time. For performance obligations satisfied over time, the objective is to measure progress in a manner which depicts the performance of transferring control to the customer. As such, the Company recognizes revenue over time using the “right-to-invoice” cost-to-cost revenue recognition model, which includes cost-plus and fixed-prices contracts, as this depicts when control of the promised goods and/or services are transferred to the customer. Sales are recognized as the ratio of actual costs of work performed to the estimated costs at completion of the performance obligation (cost-to-cost). As such, these revenues are disaggregated in ‘Related party’ and ‘Commercial’ customers, and ‘Cost-plus’ and ‘Fixed-price’ in the tables above.

Other revenue earned from management, consulting and administrative support services provided, which may or may not be covered by a formal contract, are generally time and material based. Revenue from these contracts is recognized as the services are provided. As such, these revenues are disaggregated in ‘Commercial’ and ‘Time and Material’ in the tables above.

Advertising costs

The total amount of advertising costs charged to operations for the year ended December 31, 2018 was $130, of which $129 was charged to sales and marketing and $1 was charged to general and administrative expenses. 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.

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 service period based on their fair values at the date of grant. For the year ended December 31, 2018, total stock based compensation cost was $257 of which $234 was charged to expenses within ‘general and administrative’ and ‘cost of sales-real estate services’ in the consolidated statement of operations, and $23 was capitalized to ‘Real estate inventories’. 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-real estate services’ in the consolidated statement of operations, and $59 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, 2018 and 2017 are presented on the consolidated statement of operations. Restricted stock awards, stock options and warrants for the years ended December 31, 2018 and 2017 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 the net losses for the years ended December 31, 2018 and 2017, diluted net loss per share excludes the effects of 450 and 400 warrants, respectively; stock options of 441 and 489, respectively; and 138 and 243 restricted stock awards, respectively.

Comprehensive income (loss)

For the years ended December 31, 2018 and 2017, 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 2018, we revised our business strategy and transitioned our business operations to three operating segments: Homebuilding, Asset Management and Real Estate Services. Prior to this transition we operated our business through three segments: Homebuilding, Multi-family and Real Estate Services. We are focused on the Washington, D.C. market.

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.

In our Asset Management segment, we manage projects ranging from approximately 100-500 residential units in locations that are supply constrained with demonstrated demand for stabilized assets. We also provide development and asset management services to a wide range of real estate assets and businesses that include apartments, hotels, office buildings, leased lands, retail stores, mixed-use developments, and urban developments.

In our Real Estate Services segment we provide services in all aspects of real estate including strategic planning, land development, entitlement, sales and marketing, workout and turnaround strategies, financing and general construction.

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

	Asset Management		Real Estate Services			Homebuilding			Total
Twelve Months Ended December 31, 2018
Gross revenue	$	12,473	$	3,031		$	41,245		$	56,749
Gross profit, excluding impairment charges		1,182		(59	)		(1,554	)		(431	)
Net (loss) income		1,187		(849	)		(5,304	)		(4,966	)
Total assets		2,882		3,242			28,976			35,100
Depreciation, amortization, and stock based compensation		159		221			17			397
Interest expense		—		97			74			171
			Real Estate Services			Homebuilding			Total
Twelve Months Ended December 31, 2017
Gross revenue			$	2,031		$	43,399		$	45,430
Gross profit				(268	)		2,814		$	2,546
Net (loss) income				(430	)		(4,348	)	$	(4,778	)
Total assets				3,684			47,474		$	51,158
Depreciation, amortization, and stock based compensation				177			409		$	586
Interest expense				41			—		$	41

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

Reclassifications have been made to the prior year consolidated financial statements to conform to the current year presentation. For the years ended December 31, 2018 and 2017, we reclassified restricted cash into the “cash, restricted cash, and cash equivalents” balance on the Consolidated Statements of Cash Flows.

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. The Company adopted this standard using the modified retrospective method effective January 1, 2018. There were no material adjustments to the financial statements as a result of this adoption.

In February 2016, the FASB issued ASU 2016-02, Leases ("ASC 842"), to increase transparency and comparability among organizations' accounting for leases. The guidance requires a company to recognize right-of-use assets and lease liabilities on the balance sheet, as well as to disclose key quantitative and qualitative information about leasing arrangements. This guidance is effective on a modified retrospective basis for reporting periods beginning after December 15, 2018, with early adoption permitted. As permitted by the guidance, the Company will elect to retain the original lease classification and historical accounting for initial direct costs for leases existing prior to the adoption date. Furthermore, the Company will not have to reassess contracts entered into prior to the adoption date for the existence of a lease. The Company will also elect not to restate prior periods for the impact of the adoption of the new standard and will instead recognize a cumulative-effect adjustment to beginning retained earnings as of January 1, 2019 for any prior period income statement effects identified.

The Company has been assessing the changes required to support the adoption of the new standard, as well as the quantitative impact this guidance will have on its financial statements and related disclosures. As a result, the Company expects this standard will result in no material recognition of Right of Use Assets or Lease Liabilities on its consolidated balance sheet, as a result of existing office leases.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments – Credit Losses (Topic 326), which creates a new framework to evaluate financial instruments, such as trade receivables, for expected credit losses. This new framework replaces the existing incurred loss approach and is expected to result in more timely recognition of credit losses. ASU No. 2016-13 is effective for annual and interim periods beginning after December 15, 2019 and early adoption is not until years beginning after December 15, 2018. We are evaluating the effect this guidance will have on our financial statements and related disclosures.

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 became effective for the Company’s fiscal year beginning January 1, 2018. The adoption of ASU 2016-15 modified the Company’s disclosures, resulting in a reclassification of $1.1 million of restricted cash for the year ended December 31, 2017 to be included in cash within the consolidated statement of cash flows.

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. The amendments in ASU 2017-01 should be applied prospectively on or after the effective date. The adoption of ASU 2017-01on January 1, 2018 did not 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. The Company early adopted this guidance during the fourth quarter of 2018 and the early adoption did not have a material impact on the Company’s 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. The adoption of ASU 2017-09 did not have a material effect on our consolidated financial statements.

In March 2018, the FASB issued ASU 2018-05, “Income Taxes (Topic 740), Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118” (“ASU 2018-05”). The Tax Cuts and Jobs Act (the “Act”) changes existing United States tax law and includes numerous provisions that will affect businesses. The Act, for instance, introduces changes that impact U.S. corporate tax rates, business-related exclusions, and deductions and credits. ASC Topic 740 provides accounting and disclosure guidance regarding the recognition of taxes payable or refundable for the current year and the recognition of deferred tax liabilities and deferred tax assets for the future tax consequences of events that have been recognized in an entity’s financial statements or tax returns. In accordance with SEC Staff Accounting Bulletin (SAB) 118, entities that elect to record provisional amounts must base them on reasonable estimates and may adjust those amounts for a period of up to a year after the December 22, 2017 enactment date. The amendments of ASU 2018-05 did not have a material effect on our consolidated financial statements.

In August 2018, the FASB issued ASU 2018-13, “Fair Value Measurement (Topic 820) – Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement” (“ASU 2018-13”), which removes, adds and modifies certain disclosure requirements for fair value measurements in Topic 820. ASU 2018-13 removes the following disclosure requirements: (i) the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy and (ii) the entity’s valuation processes for Level 3 fair value measurements. ASU 2018-13 adds the following disclosure requirements: (i) provide information about the measurement uncertainty of Level 3 fair value measurements as of the reporting date rather than a point in the future, (ii) disclose changes in unrealized gains and losses related to Level 3 measurements for the period included in other comprehensive income, and (iii) disclose for Level 3 measurements the range and weighted average of the significant unobservable inputs and the way it is calculated. ASU 2018-13 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted. We do not expect the adoption of this pronouncement to have a material impact on our consolidated financial statements.

Other accounting pronouncements issued or effective during the year ended December 31, 2018 are not applicable to us or are not anticipated to have a material effect on our consolidated financial statements.

Trade Receivables & Trade Receivables - Related Parties

12 Months Ended

Dec. 31, 2018

Accounts Receivable Net Current [Abstract]

Trade Receivables & Trade Receivables - Related Parties

3. TRADE RECEIVABLES & TRADE RECEIVABLES – RELATED PARTIES

Trade receivables include amounts due from real estate services, asset management, commercial development, home sales transactions and amounts due from related parties with whom we have service arrangements. There is no allowance for doubtful accounts recorded.

	December 31, 2018		December 31, 2017
Trade	$	804	$	432
Due from Settlement Attorneys		441	—
Other		84		59
	$	1,329	$	491

As of December 31, 2018 and 2017, the Company had $3.0 million and $.1 million, respectively, of receivables from related parties, primarily related to initial AMA.

Real Estate Inventories

12 Months Ended

Dec. 31, 2018

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.

During 2018 and 2017, as a result of our impairment analysis, the Company wrote off $2.2 million and $0.5 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.

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

	December 31, 2018		December 31, 2017
Land and land development costs	$	9,741	$	24,304
Cost of construction (including capitalized interest and real estate taxes)		10,512		20,407
	$	20,253	$	44,711

Fixed Assets, Net

12 Months Ended

Dec. 31, 2018

Property Plant And Equipment [Abstract]

Fixed Assets, Net

5. FIXED ASSETS, NET

Fixed assets consist of the following:

	December 31, 2018			December 31, 2017
Computer equipment and capitalized software	$	767		$	731
Furniture and fixtures		56			51
Office equipment		209			209
Vehicles		88			42
		1,120			1,033
Less : accumulated depreciation		(899	)		(724	)
	$	221		$	309

Depreciation expense, included in ‘general and administrative’ in the accompanying consolidated statements of operations, amounted to $81 and $178 for the years ended December 31, 2018 and 2017, respectively.

Note Receivable

12 Months Ended

Dec. 31, 2018

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, 2018 and 2017, the outstanding balance of the note was $27 and $66, respectively, and was included within ‘Other assets’ in the accompanying consolidated balance sheets, the interest income of $3 and $5 for the years ended December 31, 2018 and 2017, 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, 2018

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 the Company, 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.

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
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. During the years ended December 31, 2018 and 2017, $67,000 and $31,000 of intangible asset amortization, respectively, was recorded in General and Administrative expense on the Consolidated Statement of Operations.

	December 31, 2018
Intangibles	$	268

Less : accumulated amortization		(98	)
	$	170

As of December 31, 2018, the future estimated amortization expense related to these intangible assets was:

	Amortization Expense
2019	$	67
2020		67
2021		36
Total	$	170

Other Assets, Net

12 Months Ended

Dec. 31, 2018

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Other Assets, Net

8. OTHER ASSETS, NET

Other assets, net consist of the following:

	December 31, 2018		December 31, 2017
Bonds and escrow deposits	$	1,100	$	381
Prepaid Insurance		60		46
Other		304		189
	$	1,464	$	616

Accounts Payable and Accrued Liabilities

12 Months Ended

Dec. 31, 2018

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, 2018		December 31, 2017
Trade and accrued payables	$	4,727	$	8,240
Accrued wages and commissions		1,396		39
Customer deposits		1,189		575
Warranty		195		258
Other		107		4
	$	7,614	$	9,116

Debt

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Debt

10. DEBT

Notes payable consisted of the following:

	December 31, 2018		December 31, 2017
Construction revolvers	$	2,220	$	7,237
Development and acquisition notes		10,290		9,533
Mezzanine notes		—		3,253
Line of credit		13		2,123
Secured-other		909		1,069
Total secured notes		13,432		23,215
Unsecured financing, net of unamortized deferred financing charges of $0 and $55		595		1,285
Notes payable, unsecured, net of $0.8 and $2.0 million discount and unamortized deferred financing charges, respectively		4,903		14,893
Total notes payable	$	18,930	$	39,393

As of December 31, 2018, maturities of our borrowings, net of discounts and unamortized deferred financing costs, are as follows:

2019	$	6,664
2020		6,312
2021		4,437
2022		1,483
2023 and thereafter		34
Total	$	18,930

See Note 21 for further discussion on repayments subsequent to December 31, 2018.

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.

The Company had $2.2 million and $7.3 million of outstanding secured construction borrowings as of December 31, 2018 and 2017, 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, 2018 and 2017, the weighted average interest rate on the Company’s outstanding construction revolving facility was 5.7% and 4.7%, respectively. The secured debt facilities have maturity dates ranging from March 15, 2020 to July 31, 2020, including extensions subject to certain conditions.

As of December 31, 2018 and 2017, the Company had approximately $10.3 million and $9.5 million, respectively, of aggregate acquisition and development loans outstanding The acquisition and development loans have maturity dates ranging from March 15, 2019 to July 25, 2021, 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 4.25% to 5.5%. As of December 31, 2018 and 2017, the weighted average interest rates were 6.6% per annum and 7.1% per annum, respectively.

During 2018, the Company had a mezzanine loan that is being used to finance the development of the Momentum | Shady Grove Metro project. This mezzanine loan was paid in full prior to June 30, 2018. The maximum principal commitment amount of this loan was $1.1 million, of which $1.2 million of principal and accrued interest was outstanding at December 31, 2017. This financing carried 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.

During 2018, the Company also had a mezzanine loan that was being used to finance the development of finished lots at its Richmond Station project located in Prince William County, Virginia. This mezzanine loan was paid in full prior to September 30, 2018. The maximum principal commitment amount of this loan was $2.0 million, of which $2.0 million of principal and accrued interest was outstanding at December 31, 2017. This financing carried an annual interest rate of 12% annually.

Line of credit – secured

During 2018, the Company utilized a secured revolving line of credit with a maximum capacity of $3.0 million, which was paid in full prior to September 30, 2018. As of December 31, 2017, $2.1 million was outstanding under this revolving line of credit. This line of credit was secured by the first priority security interest in the Company’s wholly owned subsidiaries in the Washington, D.C. metropolitan area and guaranteed by our Chief Executive Officer. The Company used this line of credit to finance the predevelopment related expenses and deposits for current and future projects and carried a variable interest rate tied to a one-month LIBOR plus 3.25% per annum, with an interest rate floor of 5.0%. At December 31, 2017, the interest rate was 5.00%. This line of credit also called 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.

Additionally, during 2018, the Company opened a secured line of credit, with a maximum capacity of $0.2 million. Interest charged on this line of credit is based on the prime rate plus 2.50%. As of December 31, 2018, there was $13 thousand of principal and interest outstanding on this line of credit, and the interest rate was 6.75%.

Secured – other

As of December 31, 2018 and 2017, the Company had one secured loan related to Comstock Environmental. The loan was used to finance the acquisition of Comstock Environmental, and carries a fixed interest rate of 6.5%, and has a maturity date of October 17, 2022. At December 31, 2018 and 2017, this financing had an outstanding balance of $0.9 million and $1.1 million, respectively. This financing is secured by the assets of Comstock Environmental and is guaranteed by our Chief Executive Officer.

Unsecured notes

During 2018 the Company the company paid in full a 10-year unsecured note with a bank. At December 31, 2017, the Company had $0.6 million outstanding. Interest was charged on this financing at LIBOR plus 2.2%. At December 31, 2017, the interest rate was 3.6%.

As of December 31, 2018 and December 31, 2017, the Company had one unsecured seller-financed promissory note with an outstanding balance of $0.6 million. This financing carries an annual interest rate of LIBOR plus 3% and has a maturity date of July 17, 2022. At December 31, 2018 and 2017, the interest rate was 6.0% and 4.6%, respectively. Additionally, as of December 31, 2017, the Company had another unsecured seller financed promissory note, which was paid in full prior to September 30, 2018. As of December 31, 2017, $0.1 million was outstanding. This financing carried an annual interest rate of the prime rate plus 5%. At December 31, 2017, the interest rate was 9.5%.

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. On December 18, 2014, the loan agreement was amended and restated to provide for a maximum capacity of $25 million. On May 23, 2018, the Company entered into a Membership Interest Exchange and Subscription Agreement (the “Membership Exchange Agreement”), together with a revised promissory note agreement, in which a note (“CGF Note”) with an outstanding principal and accrued interest balance of $7.7 million was exchanged for 1,482,300 shares of the Company’s Series C Non-Convertible Preferred Stock, par value $0.01 per share and a stated liquidation value of $5.00 per share (the “Series C Preferred Stock”), issued by the Company to Comstock Development Services, LLC (“CDS”), a Company wholly owned by our Chief Executive Officer. The Company exchanged the preferred equity for 91.5% of CDS membership interest in the Comstock Growth Fund promissory note. Concurrently, the face amount of the CGF Note was reduced to $5.7 million as of the Effective Date. The loan bears interest at a fixed rate of 10% 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 $4.9 million and $11.3 million of outstanding borrowings and accrued interest under the CGF loan, net of discounts, as of December 31, 2018 and 2017, respectively. As of December 31, 2018 and 2017 the interest rate was 10.0% and 11.9% per annum, respectively. The maturity date for the CGF loan is April 16, 2019.

During the years ended December 31, 2018 and 2017, the Company made interest payments of $0.6 million and $1.6 million, respectively.

During the year ended December 31, 2018 the Company did not make principal payments to CGF. During the year ended December 31, 2017, the Company made principal payments to CGF of $1.5 million.

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. Effective December 31, 2017, the CGF II loan was extended one year to December 31, 2018. On May 23, 2018, Comstock Holding Companies, Inc. (“Comstock” , “CHCI” or the “Company”) entered into a Note Exchange and Subscription Agreement (the “Note Exchange Agreement”) in which a note (“CGF2 Note”) with an outstanding principal and accrued interest balance of $3.7 million was exchanged for 738,390 shares of the Company’s Series C Non-Convertible Preferred Stock, par value $0.01 per share and a stated liquidation value of $5.00 per share (the “Series C Preferred Stock”), issued by the Company to Comstock Growth Fund II, L.C. (“CGF2”), a Company wholly owned by our Chief Executive Officer. The CGF2 Note was cancelled in its entirety effective as of the Effective Date. As a result of the conversion of the CGF & CGF2 notes, the Company recognized a gain of $3.7 million, which was recorded in ‘Additional paid-in capital’ in the consolidated balance sheet net of an income tax benefit of $0.9 million which was recorded in the consolidated statement of operations for the year ended December 31, 2018. Refer to Note 12 – Fair Value Disclosures for further information regarding the assumptions and methods utilized in determining the fair value of the Preferred Stock issued. As of December 31, 2017, $3.6 million was outstanding in principal and accrued interest under the CGF II loan.

Commitments and Contingencies

12 Months Ended

Dec. 31, 2018

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, 2018 and 2017, the Company had issued $1.1 million and $1.1 million, respectively, in letters of credit. At December 31, 2018 and 2017, the Company had $8.2 million and $4.0 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, 2018 and 2017, we had approximately $1.0 million in these escrow accounts, which are included in ‘Restricted cash’ in the consolidated balance sheets.

Fair Value Disclosures

12 Months Ended

Dec. 31, 2018

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,

2018

December 31,

2017

Carrying amount

18,930

39,393

Fair value

18,608

38,899

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.

In connection with the CGF I & II conversions discussed in Note 10 – Debt and Note 16 – Related Party Transactions, we issued 2,220,690 shares of Series C Non-Convertible Preferred Stock with a liquidation preference 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 Company recorded these shares based on the fair value calculation on the effective date of the agreement. The Company used various assumptions and level 3 inputs such as current market condition and financial position in calculating the fair value of the Series C Preferred Stock by back solving from the Company’s equity value using the option pricing and the probability-weighted expected return models, adjusted for marketability of the Series C Preferred Stock.

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.

- 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

Employee Benefit Plans

12 Months Ended

Dec. 31, 2018

Compensation And Retirement Disclosure [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 5% of the participant’s gross salary, per pay period. Safe Harbor Matching Contributions made by the Company are 100% vested immediately. The total amount matched during the years ended December 31, 2018 and 2017 was $38 and $35, respectively.

Restricted Stock, Stock Options and Other Stock Plans

12 Months Ended

Dec. 31, 2018

Disclosure Of Compensation Related Costs Sharebased 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, 2018 and 2017, there were 0.06 million and 0.4 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. We recognize forfeitures as they occur. 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 2018 and 2017.

	2018		2017
Weighted average fair value of options granted	$	1.80	$	1.20
Dividend yields		—		—
Expected volatility	72.21%-83.47%		70.60%-79.40%
Weighted average expected volatility	81.76%		72.73%
Risk free interest rates	2.74%		2.15%
Weighted average expected term (in years)		6		6

The following table summarizes information about stock option activity:

	Shares			Weighted Average Exercise Price		Weighted-Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at January 1, 2017		112		$	8.16
Granted		345			1.89
Exercised		—			—
Forfeited or Expired		(21	)		7.06
Outstanding at December 31, 2017		436		$	3.25		8.50		—
Granted		84			2.90
Exercised		—			—
Forfeited or Expired		(102	)		2.28
Outstanding at December 31, 2018		418		$	3.42		7.67	$	9
Exercisable at December 31, 2018		179		$	5.10		6.18	$	2

As of December 31, 2018 and 2017, the weighted-average remaining contractual term of unexercised stock options was 7.7 years and 8.5 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, 2017		20		$	1.89
Granted		245			2.13
Vested		(22	)		1.88
Forfeited or Expired		—			—
Outstanding at December 31, 2017		243		$	2.16
Granted		—			—
Vested		(68	)		2.13
Forfeited or Expired		(37	)		2.11
Nonvested at December 31, 2018		138		$	2.18

As of December 31, 2018 and 2017, there was $0.3 million and $0.6 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, 2018 and 2017, 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

Dec. 31, 2018

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, 2018 and 2017 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 2018 and 2017, New Hampshire Ave. Ventures, LLC did not make any distributions to its non-controlling interest member, 6000 New Hampshire Avenue, LLC.

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 thousand. 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 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. 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.

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 2018 and 2017, the Company distributed $1.8 million and $1.0 million, respectively, to its non-controlling interest member.

At December 31, 2018 and December 31, 2017, 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, 2018 and December 31, 2017, total assets of these VIEs were approximately $19.3 million and $30.6 million, respectively, and total liabilities were approximately $12.6 million and $15.9 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, 2018 and 2017, the Company did not have any outstanding land purchase options.

Related Party Transactions

12 Months Ended

Dec. 31, 2018

Related Party Transactions

16. RELATED PARTY TRANSACTIONS

Lease for Corporate Headquarters

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 on September 30, 2019, is $0.4 million.

For each of the years ended December 31, 2018 and 2017, total rental payments made were $0.4 million and $0.2 million, respectively. Rent expense for the years ended December 31, 2018 and 2017 was $0.4 million and $0.2 million, respectively.

Asset Management Agreement

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 “AMA”) 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. Pursuant to the AMA, CDS has engaged CAM to manage and administer the CDS’ commercial real estate portfolio and the day to-day operations of CDS and each property-owning subsidiary of CDS. Pursuant to the terms of the AMA, CAM will provide investment advisory, development and asset management services necessary to build out, stabilize and manage certain assets.

Pursuant to the AMA, 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 AMA, (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. During the year ended December 31, 2018, the Company recorded revenue of $12.0 million which is included in ‘Revenue-asset management’ in the consolidated statement of operations).

Private Placements and Promissory Notes

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 earned 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, Comstock Growth Fund II, L.C. (“CGF II”), an administrative entity managed by the Company, was created for the purpose of extending loans to the Company. CGF II entered into a subscription agreement with CDS pursuant to which CDS purchased membership interests in CGF II for an initial aggregate principal amount of $5.0 million (the “CGF II Private Placement”). Also 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 31, 2018. On May 23, 2018, Comstock Holding Companies, Inc. (“Comstock” , “CHCI” or the “Company”) entered into a Note Exchange and Subscription Agreement (the “Note Exchange Agreement”) in which a note (“CGF2 Note”) with an outstanding principal and accrued interest balance of $3.7 million was exchanged for 738,390 shares of the Company’s Series C Non-Convertible Preferred Stock, par value $0.01 per share and a stated liquidation value of $5.00 per share (the “Series C Preferred Stock”), issued by the Company to Comstock Growth Fund II, L.C. (“CGF2”), a Company wholly owned by our Chief Executive Officer. The CGF2 Note was cancelled in its entirety effective as of the Effective Date. As a result of the conversion of CGF & CGF2 notes, the Company recognized a gain of $3.7 million, which was recorded in ‘Additional paid-in capital’ in the consolidated balance sheet and an income tax benefit of $0.5 million, which was recorded in the consolidated statement of operations for the three and nine months ended September 30, 2018. As of December 31, 2017, $3.6 million was outstanding in principal and accrued interest under the CGF II loan (Note 10).

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

Share Exchange Agreement

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 thousand, were paid-in-kind, and were retired in the conversion.

Services Agreement

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, 2018 and 2017, the Company billed Comstock Asset Management, L.C. $0.12 million and $1.1 million, respectively, for services and out-of-pocket expenses incurred. Revenues from this arrangement are included within ‘Revenue – asset management’ within the accompanying consolidated statements of operations. As of December 31, 2018 and 2017, the Company was owed $0 thousand and $145 thousand, respectively, under this contract, which is included in ‘Trade receivables’ in the accompanying consolidated balance sheets

Warrants

12 Months Ended

Dec. 31, 2018

Equity [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 thousand. 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 thousand. 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, 2018, 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, 2018.

Unconsolidated Joint Venture

12 Months Ended

Dec. 31, 2018

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 $72 and $27 as of December 31, 2018 and 2017, respectively, and is included within ‘Other assets, net’ in the accompanying consolidated balance sheets. Earnings for the years ended December 31, 2018 and 2017, from this unconsolidated joint venture of $137 and $53, respectively, is included in ‘Other income, net’ in the accompanying consolidated statement of operations. During the years ended December 31, 2018 and 2017, the Company collected and recorded a distribution of $89 and $83, 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,
	2018		2017
Statement of Operations:
Total net revenue	$	391	$	219
Total expenses		117		114
Net income	$	274	$	105
Comstock Holding Companies, Inc. share of net income	$	137	$	53

Income Taxes

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Income Taxes

19. INCOME TAXES

During the year ended December 31, 2018, the Company recognized income tax expense of $12 thousand and the effective tax rate was 0.24%. During the year ended December 31, 2017, the Company recognized income tax expense of $38 thousand and the effective tax rate was 0.91%.

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 Cuts 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 $147 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, 2018, 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, 2018, 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, 2018 and 2017, respectively. We file U.S. and state income tax returns in jurisdictions with varying statutes of limitations. The 2015 through 2017 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:

	2018			2017
Current:
Federal	$	—		$	—
State		18			24
		18			24
Deferred:
Federal		(607	)		15,171
State		(111	)		2,724
		(718	)		17,895
Valuation allowance		712			(17,881	)
Total income tax expense	$	12		$	38

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, 2018 and 2017 are as follows:

	2018			2017
Deferred tax assets:
Inventory	$	500		$	834
Warranty		63			67
Net operating loss and tax credit carryforwards		37,937			37,045
Accrued expenses		4			4
Stock based compensation		379			352
Investment in affiliates		—			48
		38,883			38,350
Less - valuation allowance		(38,809	)		(38,328	)
Net deferred tax assets		74			22

Deferred tax liabilities:
Depreciation and amortization		(11	)		(21	)
Investment in affiliates		(28	)		—
Goodwill amortization		(44	)		(15	)
Net deferred tax liabilities		(83	)		(36	)
Net deferred tax assets (liabilities)	$	(9	)	$	(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:

	2018			2017
Federal statutory rate		(21.00	%)		(35.00	%)
State income taxes - net of federal benefit		(4.74	%)		(3.90	%)
Permanent differences		16.52	%		(10.94	%)
Return to provision adjustments		(4.29	%)		5.18	%
Change in valuation allowance		14.32	%		(417.08	%)
Current state income tax		0.36	%		0.56	%
Change in enacted rate		1.52	%		462.23	%
Other, net		(2.45	%)		(0.15	%)
Effective tax rate		0.24	%		0.91	%

Preferred Stock

12 Months Ended

Dec. 31, 2018

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.

On May 23, 2018, the Company entered into a Note Exchange and subscription agreement in which a note (“CGF2 Note) with an outstanding principal and accrued interest balance of $3.7 million was exchanged for 738,390 shares of the Company’s Series C Non-Convertible Preferred Stock, par value $0.01 per share and a stated liquidation value of $5.00 per share, issued by the Company to Comstock Growth Fund II, L.C. (“CGF2”), a Company wholly owned by our Chief Executive Officer. The CGF2 Note was cancelled in its entirety effective as of the Effective Date. As a result of the conversion of CGF and CGF2, the Company recognized a gain of $3.7 million, which was recorded in ‘Additional paid-in capital’ in the consolidated balance sheet and an income tax benefit of $0.5 million, which was recorded in the consolidated statement of operations.

Subsequent Events

12 Months Ended

Dec. 31, 2018

Subsequent Events [Abstract]

Subsequent Events

21. SUBSEQUENT EVENTS

On February 12, 2019, the Company held a special meeting of stockholders (the “2019 Special Meeting”), at which its stockholders approved and adopted the Comstock Holding Companies, Inc. 2019 Omnibus Incentive Plan (the “2019 Plan”).

The Company’s board of directors previously approved the 2019 Plan on December 12, 2018, subject to stockholder approval. At the 2019 Special Meeting, the Company’s stockholders approved an amendment to the Company’s Amended and Restated Certificate of Incorporation to increase the number of authorized shares of Class A common stock from 11,038,071 to 59,779,750 and a corresponding increase to the number of authorized shares of all classes of capital stock from 31,428,571 to 80,000,000 (the “Amendment”). The Amendment became effective upon filing with the Secretary of State of the State of Delaware on February 15, 2019 (the “Certificate of Amendment”). Also on February 15, 2019 the Company filed a Certificate of Amendment of the Certificate of Designation of Series C Non-Convertible Preferred Stock of Comstock Holding Companies, Inc. (the “Series C Certificate of Amendment”) with the Secretary of the State of Delaware. The Series C Certificate of Amendment amended the Certificate of Designation to increase the number of shares of Series C Preferred Stock from 3,000,000 to 4,500,000.

On March 14, 2019, the Company paid in full a loan related to The Woods at Spring Ridge project. The loan had a maturity date of March 15, 2019. As of December 31, 2018, the Company had $1.8 million in outstanding borrowings under this loan.

Organization (Policies)

12 Months Ended

Dec. 31, 2018

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Liquidity Developments

Basis of presentation

Cash and cash equivalents and restricted cash

Trade Receivables

Real estate inventories

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,
	2018		2017
Total interest incurred and capitalized	$	2,415	$	4,223
Total real estate taxes incurred and capitalized		306		354
Total interest and real estate taxes incurred and capitalized	$	2,721	$	4,577
Interest expensed as a component of cost of sales	$	3,299	$	2,604
Real estate taxes expensed as a component of cost of sales		340		267
Interest and real estate taxes expensed as a component of cost of sales	$	3,639	$	2,871

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,
	2018		2017
Interest incurred and expensed from entity level borrowings	$	97	$	—
Interest incurred and expensed for inactive projects		61		41
Real estate taxes incurred and expensed for inactive projects		13		—
	$	171	$	41

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

Warranty reserve

	Years ended December 31,
	2018			2017
Balance at beginning of period	$	258		$	287
Additions		108			178
Releases and/or charges incurred		(171	)		(207	)
Balance at end of period	$	195		$	258

Contract Liabilities

Contract liabilities consisted of the following:

	Years ended December 31,
	2018		2017
Contract Liabilities: Customer Deposits and Deferred Revenue
Homebuilding - Customer Deposits	$	1,189	$	575
Asset Management - Deferred revenue		1,875		—
Total Contract Liabilities	$	3,064	$	575

Deferred Revenue – Asset Management relate to the AMA executed on March 30, 2018 and effective January 2, 2018. See Note 16 – Related Party Transactions for details regarding this transaction.

Customer deposits are also included in Note 9 – Accounts Payable and Accrued Liabilities.

Revenue recognition

	Years ended December 31,
	2018		2017
Revenue by customer
Individual customers	$	41,245	$	43,399
Related party		12,900		—
Commercial		2,604		2,031
Total Revenue by Customer	$	56,749	$	45,430
Revenue by contract type
Fixed-price	$	42,386	$	43,399
Cost-plus		12,040		—
Time and Material		2,323		2,031
Total Revenue by contract type	$	56,749	$	45,430

Comprehensive income (loss)

Segment reporting

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.

	Asset Management		Real Estate Services			Homebuilding			Total
Twelve Months Ended December 31, 2018
Gross revenue	$	12,473	$	3,031		$	41,245		$	56,749
Gross profit, excluding impairment charges		1,182		(59	)		(1,554	)		(431	)
Net (loss) income		1,187		(849	)		(5,304	)		(4,966	)
Total assets		2,882		3,242			28,976			35,100
Depreciation, amortization, and stock based compensation		159		221			17			397
Interest expense		—		97			74			171
			Real Estate Services			Homebuilding			Total
Twelve Months Ended December 31, 2017
Gross revenue			$	2,031		$	43,399		$	45,430
Gross profit				(268	)		2,814		$	2,546
Net (loss) income				(430	)		(4,348	)	$	(4,778	)
Total assets				3,684			47,474		$	51,158
Depreciation, amortization, and stock based compensation				177			409		$	586
Interest expense				41			—		$	41

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

Use of estimates

Reclassifications

Recent accounting pronouncements

Consolidation Of Entities

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

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,
	2018		2017
Total interest incurred and capitalized	$	2,415	$	4,223
Total real estate taxes incurred and capitalized		306		354
Total interest and real estate taxes incurred and capitalized	$	2,721	$	4,577
Interest expensed as a component of cost of sales	$	3,299	$	2,604
Real estate taxes expensed as a component of cost of sales		340		267
Interest and real estate taxes expensed as a component of cost of sales	$	3,639	$	2,871

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,
	2018		2017
Interest incurred and expensed from entity level borrowings	$	97	$	—
Interest incurred and expensed for inactive projects		61		41
Real estate taxes incurred and expensed for inactive projects		13		—
	$	171	$	41

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,
	2018			2017
Balance at beginning of period	$	258		$	287
Additions		108			178
Releases and/or charges incurred		(171	)		(207	)
Balance at end of period	$	195		$	258

Summary of Contract Liabilities

Contract liabilities consisted of the following:

	Years ended December 31,
	2018		2017
Contract Liabilities: Customer Deposits and Deferred Revenue
Homebuilding - Customer Deposits	$	1,189	$	575
Asset Management - Deferred revenue		1,875		—
Total Contract Liabilities	$	3,064	$	575

Summary of Sales from Contracts with Customers Disaggregated by Categories

	Years ended December 31,
	2018		2017
Revenue by customer
Individual customers	$	41,245	$	43,399
Related party		12,900		—
Commercial		2,604		2,031
Total Revenue by Customer	$	56,749	$	45,430
Revenue by contract type
Fixed-price	$	42,386	$	43,399
Cost-plus		12,040		—
Time and Material		2,323		2,031
Total Revenue by contract type	$	56,749	$	45,430

Segment Reporting Information

	Asset Management		Real Estate Services			Homebuilding			Total
Twelve Months Ended December 31, 2018
Gross revenue	$	12,473	$	3,031		$	41,245		$	56,749
Gross profit, excluding impairment charges		1,182		(59	)		(1,554	)		(431	)
Net (loss) income		1,187		(849	)		(5,304	)		(4,966	)
Total assets		2,882		3,242			28,976			35,100
Depreciation, amortization, and stock based compensation		159		221			17			397
Interest expense		—		97			74			171
			Real Estate Services			Homebuilding			Total
Twelve Months Ended December 31, 2017
Gross revenue			$	2,031		$	43,399		$	45,430
Gross profit				(268	)		2,814		$	2,546
Net (loss) income				(430	)		(4,348	)	$	(4,778	)
Total assets				3,684			47,474		$	51,158
Depreciation, amortization, and stock based compensation				177			409		$	586
Interest expense				41			—		$	41

Trade Receivables & Trade Receivables - Related Parties (Tables)

12 Months Ended

Dec. 31, 2018

Accounts Receivable Net Current [Abstract]

Summary of Trade Receivables

	December 31, 2018		December 31, 2017
Trade	$	804	$	432
Due from Settlement Attorneys		441	—
Other		84		59
	$	1,329	$	491

Real Estate Inventories (Tables)

12 Months Ended

Dec. 31, 2018

Real Estate [Abstract]

Summary of Real Estate Held for Development and Sale

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

	December 31, 2018		December 31, 2017
Land and land development costs	$	9,741	$	24,304
Cost of construction (including capitalized interest and real estate taxes)		10,512		20,407
	$	20,253	$	44,711

Fixed Assets, Net (Tables)

12 Months Ended

Dec. 31, 2018

Property Plant And Equipment [Abstract]

Summary of Fixed Assets

Fixed assets consist of the following:

	December 31, 2018			December 31, 2017
Computer equipment and capitalized software	$	767		$	731
Furniture and fixtures		56			51
Office equipment		209			209
Vehicles		88			42
		1,120			1,033
Less : accumulated depreciation		(899	)		(724	)
	$	221		$	309

Goodwill and Intangibles (Tables)

12 Months Ended

Dec. 31, 2018

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
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, 2018
Intangibles	$	268

Less : accumulated amortization		(98	)
	$	170

Summary of Future Estimated Amortization Expense

As of December 31, 2018, the future estimated amortization expense related to these intangible assets was:

	Amortization Expense
2019	$	67
2020		67
2021		36
Total	$	170

Other Assets, Net (Tables)

12 Months Ended

Dec. 31, 2018

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Summary of Other Assets, Net

Other assets, net consist of the following:

	December 31, 2018		December 31, 2017
Bonds and escrow deposits	$	1,100	$	381
Prepaid Insurance		60		46
Other		304		189
	$	1,464	$	616

Accounts Payable and Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2018

Payables And Accruals [Abstract]

Accounts Payable and Accrued Liabilities

Accounts payable and accrued liabilities consist of the following:

	December 31, 2018		December 31, 2017
Trade and accrued payables	$	4,727	$	8,240
Accrued wages and commissions		1,396		39
Customer deposits		1,189		575
Warranty		195		258
Other		107		4
	$	7,614	$	9,116

Debt (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Summary of Notes Payable

Notes payable consisted of the following:

	December 31, 2018		December 31, 2017
Construction revolvers	$	2,220	$	7,237
Development and acquisition notes		10,290		9,533
Mezzanine notes		—		3,253
Line of credit		13		2,123
Secured-other		909		1,069
Total secured notes		13,432		23,215
Unsecured financing, net of unamortized deferred financing charges of $0 and $55		595		1,285
Notes payable, unsecured, net of $0.8 and $2.0 million discount and unamortized deferred financing charges, respectively		4,903		14,893
Total notes payable	$	18,930	$	39,393

Maturities of Borrowings, Net of Discounts and Unamortized Deferred Financing Costs

As of December 31, 2018, maturities of our borrowings, net of discounts and unamortized deferred financing costs, are as follows:

2019	$	6,664
2020		6,312
2021		4,437
2022		1,483
2023 and thereafter		34
Total	$	18,930

- 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

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+ Details

Fair Value Disclosures (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Summary of Carrying Amount and Fair Value of Fixed and Floating Rate Debt

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,

2018

December 31,

2017

Carrying amount

18,930

39,393

Fair value

18,608

38,899

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

12 Months Ended

Dec. 31, 2018

Disclosure Of Compensation Related Costs Sharebased 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 2018 and 2017.

	2018		2017
Weighted average fair value of options granted	$	1.80	$	1.20
Dividend yields		—		—
Expected volatility	72.21%-83.47%		70.60%-79.40%
Weighted average expected volatility	81.76%		72.73%
Risk free interest rates	2.74%		2.15%
Weighted average expected term (in years)		6		6

Summary Information about Stock Option Activity

The following table summarizes information about stock option activity:

	Shares			Weighted Average Exercise Price		Weighted-Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at January 1, 2017		112		$	8.16
Granted		345			1.89
Exercised		—			—
Forfeited or Expired		(21	)		7.06
Outstanding at December 31, 2017		436		$	3.25		8.50		—
Granted		84			2.90
Exercised		—			—
Forfeited or Expired		(102	)		2.28
Outstanding at December 31, 2018		418		$	3.42		7.67	$	9
Exercisable at December 31, 2018		179		$	5.10		6.18	$	2

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, 2017		20		$	1.89
Granted		245			2.13
Vested		(22	)		1.88
Forfeited or Expired		—			—
Outstanding at December 31, 2017		243		$	2.16
Granted		—			—
Vested		(68	)		2.13
Forfeited or Expired		(37	)		2.11
Nonvested at December 31, 2018		138		$	2.18

Unconsolidated Joint Venture (Tables)

12 Months Ended

Dec. 31, 2018

Equity Method Investments And Joint Ventures [Abstract]

Summary of Unaudited Financial Information for Unconsolidated Joint Venture

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

	Twelve Months Ended December 31,
	2018		2017
Statement of Operations:
Total net revenue	$	391	$	219
Total expenses		117		114
Net income	$	274	$	105
Comstock Holding Companies, Inc. share of net income	$	137	$	53

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Income Tax Provision

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

	2018			2017
Current:
Federal	$	—		$	—
State		18			24
		18			24
Deferred:
Federal		(607	)		15,171
State		(111	)		2,724
		(718	)		17,895
Valuation allowance		712			(17,881	)
Total income tax expense	$	12		$	38

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, 2018 and 2017 are as follows:

	2018			2017
Deferred tax assets:
Inventory	$	500		$	834
Warranty		63			67
Net operating loss and tax credit carryforwards		37,937			37,045
Accrued expenses		4			4
Stock based compensation		379			352
Investment in affiliates		—			48
		38,883			38,350
Less - valuation allowance		(38,809	)		(38,328	)
Net deferred tax assets		74			22

Deferred tax liabilities:
Depreciation and amortization		(11	)		(21	)
Investment in affiliates		(28	)		—
Goodwill amortization		(44	)		(15	)
Net deferred tax liabilities		(83	)		(36	)
Net deferred tax assets (liabilities)	$	(9	)	$	(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:

	2018			2017
Federal statutory rate		(21.00	%)		(35.00	%)
State income taxes - net of federal benefit		(4.74	%)		(3.90	%)
Permanent differences		16.52	%		(10.94	%)
Return to provision adjustments		(4.29	%)		5.18	%
Change in valuation allowance		14.32	%		(417.08	%)
Current state income tax		0.36	%		0.56	%
Change in enacted rate		1.52	%		462.23	%
Other, net		(2.45	%)		(0.15	%)
Effective tax rate		0.24	%		0.91	%

Organization - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Secured project related notes, mature on March 15, 2019	$ 1,800
Notes payable to affiliates	$ 4,903	$ 14,893
Notes payable maturity	2019

Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2018 USD ($) Investment Segment shares	Dec. 31, 2017 USD ($) Investment Segment shares
Summary Of Significant Accounting Policies [Line Items]
Number of investments accounted for using the equity Method \| Investment	1	1
Restricted cash	$ 1,231,000	$ 1,141,000
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
Contract liabilities, customer deposits received	$ 1,189,000	575,000
Revenue recognized from customer deposit	500,000
Advertising costs	130,000	568,000
Stock-based compensation cost	257,000	405,000
Amount capitalized to real estate owned	$ 23,000	$ 59,000
Corporate federal income tax rate	21.00%	35.00%
Number of operating segments \| Segment	3	3
Accounting Standards Update 2016-15 [Member]
Summary Of Significant Accounting Policies [Line Items]
Reclassification of cash and restricted cash		$ 1,100,000
Warrants [Member]
Summary Of Significant Accounting Policies [Line Items]
Shares considered anti-dilutive \| shares	450	400
Stock Options [Member]
Summary Of Significant Accounting Policies [Line Items]
Shares considered anti-dilutive \| shares	441	489
Restricted Stock Awards [Member]
Summary Of Significant Accounting Policies [Line Items]
Shares considered anti-dilutive \| shares	138	243
Sales and Marketing [Member]
Summary Of Significant Accounting Policies [Line Items]
Advertising costs	$ 129,000	$ 560,000
General and Administrative [Member]
Summary Of Significant Accounting Policies [Line Items]
Advertising costs	1,000	8,000
General and Administrative Expenses and Cost of Sales [Member]
Summary Of Significant Accounting Policies [Line Items]
Stock-based compensation cost	234,000	346,000
Homebuilding [Member]
Summary Of Significant Accounting Policies [Line Items]
Contract liabilities, customer deposits received	$ 1,189,000	$ 575,000
Asset Management Segment [Member]
Summary Of Significant Accounting Policies [Line Items]
Projects units minimum \| Segment	100
Projects units maximum \| Segment	500
Maximum [Member] \| Equity Method Investee [Member]
Summary Of Significant Accounting Policies [Line Items]
Investments owned partnerships and affiliate in percent	100.00%

Summary of Significant Accounting Policies - Summary of Interest Incurred, Capitalized and Expensed for Units Settled (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Real Estate Investment Property At Cost [Abstract]
Total interest incurred and capitalized	$ 2,415	$ 4,223
Total real estate taxes incurred and capitalized	306	354
Total interest and real estate taxes incurred and capitalized	2,721	4,577
Interest expensed as a component of cost of sales	3,299	2,604
Real estate taxes expensed as a component of cost of sales	340	267
Interest and real estate taxes expensed as a component of cost of sales	$ 3,639	$ 2,871

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, 2018	Dec. 31, 2017
Real Estate Investment Property At Cost [Abstract]
Interest incurred and expensed from entity level borrowings	$ 97	$ 0
Interest incurred and expensed for inactive projects	61	41
Real estate taxes incurred and expensed for inactive projects	13	0
Interest and real estate tax expense	$ 171	$ 41

Summary of Significant Accounting Policies - Fixed Assets are Carried at Cost Less Accumulated Depreciation (Detail)	12 Months Ended
	Dec. 31, 2018
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 [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	3 years
Capitalized Software [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, useful life	3 years

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, 2018	Dec. 31, 2017
Guarantees [Abstract]
Balance at beginning of period	$ 258	$ 287
Additions	108	178
Releases and/or charges incurred	(171)	(207)
Balance at end of period	$ 195	$ 258

Summary of Significant Accounting Policies - Summary of Contract Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Contract Liabilities: Customer Deposits and Deferred Revenue
Customer Deposits	$ 1,189	$ 575
Deferred revenue	1,875	0
Total Contract Liabilities	3,064	575
Homebuilding [Member]
Contract Liabilities: Customer Deposits and Deferred Revenue
Customer Deposits	1,189	575
Asset Management [Member]
Contract Liabilities: Customer Deposits and Deferred Revenue
Deferred revenue	$ 1,875	$ 0

Summary of Significant Accounting Policies - Summary of Sales from Contracts with Customers Disaggregated by Categories (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Total Revenue	$ 56,749	$ 45,430
Fixed-price [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	42,386	43,399
Cost-plus [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	12,040	0
Time and Material [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	2,323	2,031
Individual Customers [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	41,245	43,399
Related Party [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	12,900	0
Commercial [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	$ 2,604	$ 2,031

Summary of Significant Accounting Policies - Segment Reporting Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Gross revenue	$ 56,749	$ 45,430
Gross profit, excluding impairment charges	(431)	2,546
Net (loss) income	(4,966)	(4,740)
Net (loss) income	(4,046)	(4,778)
Total assets	35,100	51,158
Depreciation, amortization, and stock based compensation	397	586
Interest expense	171	41
Asset Management [Member]
Segment Reporting Information [Line Items]
Gross revenue	12,473	0
Gross profit, excluding impairment charges	1,182	0
Net (loss) income	1,187
Net (loss) income		0
Total assets	2,882	0
Depreciation, amortization, and stock based compensation	159	0
Interest expense	0	0
Real Estate Services [Member]
Segment Reporting Information [Line Items]
Gross revenue	3,031	2,031
Gross profit, excluding impairment charges	(59)	(268)
Net (loss) income	(849)
Net (loss) income		(430)
Total assets	3,242	3,684
Depreciation, amortization, and stock based compensation	221	177
Interest expense	97	41
Homebuilding [Member]
Segment Reporting Information [Line Items]
Gross revenue	41,245	43,399
Gross profit, excluding impairment charges	(1,554)	2,814
Net (loss) income	(5,304)
Net (loss) income		(4,348)
Total assets	28,976	47,474
Depreciation, amortization, and stock based compensation	17	409
Interest expense	$ 74	$ 0

Trade Receivables & Trade Receivables - Related Parties - Additional Information (Detail) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Accounts Receivable Net Current [Abstract]
Allowance for doubtful accounts	$ 0
Receivables from related parties	$ 2,950,000	$ 145,000

Trade Receivables & Trade Receivables - Related Parties - Summary of Trade Receivables (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Accounts Receivable Net Current [Abstract]
Trade	$ 804	$ 432
Due from Settlement Attorneys	441	0
Other	84	59
Trade receivables	$ 1,329	$ 491

Real Estate Inventories - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) Project	Dec. 31, 2017 USD ($) Project
Real Estate Properties [Line Items]
Number of projects classified as held for sale \| Project	0	0
Impairment charges	$ 2,232	$ 526
Washington D.C. [Member]
Real Estate Properties [Line Items]
Impairment charges	$ 2,200	$ 500

Real Estate Inventories - Summary of Real Estate Held for Development and Sale (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Real Estate Properties [Line Items]
Real estate inventories	$ 20,253	$ 44,711
Land and Land Development Costs [Member]
Real Estate Properties [Line Items]
Real estate inventories	9,741	24,304
Cost of Construction (Including Capitalized Interest and Real Estate Taxes) [Member]
Real Estate Properties [Line Items]
Real estate inventories	$ 10,512	$ 20,407

Fixed Assets, Net - Fixed Assets are Carried at Cost Less Accumulated Depreciation (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Fixed assets, Gross	$ 1,120	$ 1,033
Less : accumulated depreciation	(899)	(724)
Fixed assets, Net, Total	221	309
Computer Equipment and Capitalized Software [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, Gross	767	731
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, Gross	56	51
Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, Gross	209	209
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, Gross	$ 88	$ 42

Fixed Assets, Net - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 168	$ 181
General and Administrative [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 81	$ 178

Note Receivable - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	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	$ 27	$ 66
Other income, net [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 3	$ 5

Goodwill and Intangibles - Additional Information (Detail) - USD ($)		12 Months Ended
	Jul. 17, 2017	Dec. 31, 2018	Dec. 31, 2017
General and Administrative Expense [Member]
Schedule Of Goodwill And Intangible Assets [Line Items]
Intangible asset amortization		$ 67,000	$ 31,000
Customer Relationships [Member]
Schedule Of Goodwill And Intangible Assets [Line Items]
Amortization period of intangible assets		4 years
Comstock Environmental [Member]
Schedule Of Goodwill And Intangible Assets [Line Items]
Purchase price of business assets	$ 2,300,000

Goodwill and Intangibles - Summary of Purchase Price Allocation (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Jul. 17, 2017
ASSETS
Net Working Capital			$ 141
Fixed Assets			180
Intangible Assets			268
Goodwill	$ 1,702	$ 1,702	1,702
Total Purchase Price			$ 2,291

Goodwill and Intangibles - Summary of Goodwill and Intangible Assets (Detail) $ in Thousands	Dec. 31, 2018 USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Intangibles	$ 268
Less : accumulated amortization	(98)
Intangible assets, net	$ 170

Goodwill and Intangibles - Summary of Future Estimated Amortization Expense (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Finite Lived Intangible Assets Future Amortization Expense [Abstract]
2019	$ 67
2020	67
2021	36
Total	$ 170	$ 237

Other Assets, Net - Summary of Other Assets, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Bonds and escrow deposits	$ 1,100	$ 381
Prepaid Insurance	60	46
Other	304	189
Other assets, net	$ 1,464	$ 616

Accounts Payable and Accrued Liabilities - Accounts Payable and Accrued Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Payables And Accruals [Abstract]
Trade and accrued payables	$ 4,727	$ 8,240
Accrued wages and commissions	1,396	39
Customer Deposits	1,189	575
Warranty	195	258	$ 287
Other	107	4
Accounts Payable and other accrued liabilities	$ 7,614	$ 9,116

Debt - Summary of Notes Payable (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Secured-other	$ 909	$ 1,069
Unsecured financing, net of unamortized deferred financing charges of $0 and $55	595	1,285
Notes payable, unsecured, net of $0.8 and $2.0 million discount and unamortized deferred financing charges, respectively	4,903	14,893
Total	18,930	39,393
Construction Loans [Member] \| Construction Revolvers [Member]
Debt Instrument [Line Items]
Debt instrument, gross	2,220	7,237
Development and Acquisition Notes [Member]
Debt Instrument [Line Items]
Debt instrument, gross	10,290	9,533
Mezzanine Notes [Member]
Debt Instrument [Line Items]
Debt instrument, gross	0	3,253
Line of Credit [Member]
Debt Instrument [Line Items]
Debt instrument, gross	13	2,123
Secured Debt [Member]
Debt Instrument [Line Items]
Debt instrument, gross	$ 13,432	$ 23,215

Debt - Summary of Notes Payable (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Unsecured Note [Member]
Debt Instrument [Line Items]
Discount and deferred financing charges, net of amortization	$ 0	$ 55
Notes Payable to Affiliates [Member]
Debt Instrument [Line Items]
Discount and deferred financing charges, net of amortization	$ 800	$ 2,000

Debt - Maturities of Borrowings, Net of Discounts and Unamortized Deferred Financing Costs (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Disclosure [Abstract]
2019	$ 6,664
2020	6,312
2021	4,437
2022	1,483
2023 and thereafter	34
Total	$ 18,930	$ 39,393

Debt - Additional Information (Detail)				12 Months Ended
Debt - Additional Information (Detail)	May 23, 2018 USD ($) $ / shares shares	Dec. 29, 2015 USD ($)	Oct. 17, 2014 USD ($)	Dec. 31, 2018 USD ($) SecurityLoan Promissory_Notes $ / shares	Dec. 31, 2017 USD ($) SecurityLoan Promissory_Notes $ / shares	Sep. 29, 2018 USD ($)	Dec. 18, 2014 USD ($)
Line of Credit Facility [Line Items]
Outstanding secured debt				$ 13,432,000	$ 23,215,000
Credit facility outstanding		$ 5,000,000
Secured-other				909,000	1,069,000
Outstanding borrowings and accrued interest, net of discounts				4,903,000	14,893,000
Income tax expense (benefit)				$ (920,000)	$ 38,000
Series C Preferred Stock [Member]
Line of Credit Facility [Line Items]
Preferred stock par value per share \| $ / shares				$ 0.01	$ 0.01
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				10.00%	11.90%
Interest payments				$ 600,000	$ 1,600,000
Note Exchange Agreement [Member] \| Comstock Growth Fund II, L.C. [Member]
Line of Credit Facility [Line Items]
Gain loss on conversion of notes	$ 3,700,000			3,700,000
Income tax expense (benefit)	(500,000)			$ (900,000)
Unsecured Seller-financed Promissory Note [Member]
Line of Credit Facility [Line Items]
Interest rate for period				6.00%	4.60%
Debt instrument maturity date				Jul. 17, 2022
Debt instrument, gross				$ 600,000	$ 600,000
Number of unsecured seller-financed promissory note outstanding \| Promissory_Notes				1	1
Unsecured Seller-financed Promissory Note [Member] \| Commercial Paper One [Member]
Line of Credit Facility [Line Items]
Interest rate					9.50%
Debt instrument, gross					$ 100,000
LIBOR Rate [Member] \| Unsecured Seller-financed Promissory Note [Member]
Line of Credit Facility [Line Items]
Debt instrument spread variable rate				3.00%
Prime Rate [Member] \| Unsecured Seller-financed Promissory Note [Member] \| Commercial Paper One [Member]
Line of Credit Facility [Line Items]
Debt instrument spread variable rate				5.00%
Construction Loans [Member] \| Construction Revolvers [Member]
Line of Credit Facility [Line Items]
Outstanding secured debt				$ 2,200,000	$ 7,300,000
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.
Weighted average interest rate				5.70%	4.70%
Maturity range, start date				Mar. 15, 2020
Maturity range, end date				Jul. 31, 2020
Debt instrument, gross				$ 2,220,000	$ 7,237,000
Development and Acquisition Notes [Member]
Line of Credit Facility [Line Items]
Outstanding secured debt				$ 10,300,000	$ 9,500,000
Weighted average interest rate				6.60%	7.10%
Maturity range, start date				Mar. 15, 2019
Maturity range, end date				Jul. 25, 2021
Debt instrument, gross				$ 10,290,000	$ 9,533,000
Development and Acquisition Notes [Member] \| Minimum [Member] \| LIBOR and Prime Rate Pricing Options [Member]
Line of Credit Facility [Line Items]
Interest rate floor				4.25%
Development and Acquisition Notes [Member] \| Maximum [Member] \| LIBOR and Prime Rate Pricing Options [Member]
Line of Credit Facility [Line Items]
Interest rate floor				5.50%
First and Second and Mezzanine Notes [Member]
Line of Credit Facility [Line Items]
Outstanding secured debt					1,200,000
Credit facility outstanding					1,100,000
Interest rate				12.00%
Interest rate paid on a monthly basis				6.00%
Interest rate accrued and paid on maturity				6.00%
First and Second and Mezzanine Notes [Member] \| Line of Credit [Member]
Line of Credit Facility [Line Items]
Outstanding secured debt					2,000,000
Credit facility outstanding					2,000,000
Interest rate				12.00%
Line of Credit [Member]
Line of Credit Facility [Line Items]
Outstanding secured debt					$ 2,100,000
Interest rate floor				5.00%
Maximum borrowing capacity						$ 3,000,000
Interest rate for period					5.00%
Debt instrument maturity description				This line of credit was secured by the first priority security interest in the Company’s wholly owned subsidiaries in the Washington, D.C. metropolitan area and guaranteed by our Chief Executive Officer. The Company used this line of credit to finance the predevelopment related expenses and deposits for current and future projects and carried a variable interest rate tied to a one-month LIBOR plus 3.25% per annum, with an interest rate floor of 5.0%.
Debt instrument, gross				$ 13,000	$ 2,123,000
Line of Credit [Member] \| LIBOR Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument spread variable rate				3.25%
Secured Line of Credit [Member]
Line of Credit Facility [Line Items]
Outstanding secured debt				$ 13,000
Maximum borrowing capacity				$ 200,000
Interest rate for period				6.75%
Secured Line of Credit [Member] \| Prime Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument spread variable rate				2.50%
Secured Other [Member]
Line of Credit Facility [Line Items]
Number of secured loan \| SecurityLoan				1	1
Fixed interest rate				6.50%	6.50%
Debt instrument maturity date				Oct. 17, 2022
Secured-other				$ 900,000	$ 1,100,000
Unsecured Note [Member]
Line of Credit Facility [Line Items]
Debt instrument, interest rate description				LIBOR
Interest rate					3.60%
Debt instrument, gross					$ 600,000
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 and accrued interest, net of discounts				$ 4,900,000	11,300,000
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 maturity date				Apr. 16, 2019
Debt instrument, term			3 years
Debt instrument, initial principal amount			$ 10,000,000
Loan annual principal repayment, percentage				10.00%
Principal payments to CGF				$ 0	1,500,000
Notes Payable, Other Payables [Member] \| Comstock Growth Fund II, L.C. [Member]
Line of Credit Facility [Line Items]
Credit facility outstanding		5,000,000
Maximum borrowing capacity		$ 10,000,000
Debt instrument, term		2 years
Debt instrument fixed 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.
Notes Payable, Other Payables [Member] \| Membership Exchange Agreement [Member] \| Comstock Growth Fund [Member]
Line of Credit Facility [Line Items]
Credit facility outstanding	$ 7,700,000
Percentage of membership interest	91.50%
Debt instrument reduction	$ 5,700,000
Debt instrument fixed interest rate	10.00%
Notes Payable, Other Payables [Member] \| Membership Exchange Agreement [Member] \| Comstock Growth Fund [Member] \| Series C- Non Convertible Preferred Stock [Member]
Line of Credit Facility [Line Items]
Convertible preferred shares issued upon conversion \| shares	1,482,300
Preferred stock par value per share \| $ / shares	$ 0.01
Notes Payable, Other Payables [Member] \| Membership Exchange Agreement [Member] \| Comstock Growth Fund [Member] \| Series C Preferred Stock [Member]
Line of Credit Facility [Line Items]
Preferred stock liquidation value per share \| $ / shares	$ 5.00
Notes Payable, Other Payables [Member] \| Note Exchange Agreement [Member] \| Comstock Growth Fund II, L.C. [Member]
Line of Credit Facility [Line Items]
Credit facility outstanding	$ 3,700,000				$ 3,600,000
Notes Payable, Other Payables [Member] \| Note Exchange Agreement [Member] \| Comstock Growth Fund II, L.C. [Member] \| Series C- Non Convertible Preferred Stock [Member]
Line of Credit Facility [Line Items]
Convertible preferred shares issued upon conversion \| shares	738,390
Preferred stock par value per share \| $ / shares	$ 0.01
Preferred stock liquidation value per share \| $ / shares	$ 5.00

Commitments and Contingencies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 29, 2015
Other Commitments [Line Items]
Outstanding letter of credit, amount	$ 1,100,000	$ 1,100,000
Outstanding performance and payment of bonds			$ 5,000,000
Amounts drawn against outstanding letters of credit or performance bond	0	0
Restricted Escrow Deposits	1,000,000	1,000,000
Performance Bonds [Member]
Other Commitments [Line Items]
Outstanding performance and payment of bonds	$ 8,200,000	$ 4,000,000

Fair Value Disclosures - Summary of Carrying Amount and Fair Value of Fixed and Floating Rate Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Option, Quantitative Disclosures [Line Items]
Carrying amount	$ 18,930	$ 39,393
Unobservable Inputs (Level 3 Inputs) [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Carrying amount	18,930	39,393
Fair value	$ 18,608	$ 38,899

Fair Value Disclosures - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Option, Quantitative Disclosures [Line Items]
Impairment charges	$ 2,232	$ 526
Washington D.C. [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Impairment charges	$ 2,200	$ 500
Comstock Growth Fund One And Two [Member] \| Series C- Non Convertible Preferred Stock [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Convertible preferred shares issued upon conversion	2,220,690
Preferred stock liquidation value per share	$ 5.00

Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Defined Contribution Plan Disclosure [Line Items]
Total employee contributions	$ 38	$ 35
Employer contributions, vested percentage	100.00%
Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Gross employee contribution	100.00%
Each participant's gross salary	5.00%
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, 2018	Dec. 31, 2017	Nov. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average remaining contractual term of unexercised stock options		7 years 8 months 12 days	8 years 6 months
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]
Unrecognized compensation cost related to stock issuances		$ 0.3	$ 0.6
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
Description of additional shares authorized for issuance under long-term compensation plan		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.
Percentage of additional shares authorized issuable under long-term compensation plan		3.00%
Shares issued		107
Shares available for issuance under long-term compensation plan		60,000	400,000
Stock Options [Member] \| 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
Weighted-average remaining contractual term of unexercised stock options		7 years 8 months 1 day	8 years 6 months
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) - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions And Methodology [Abstract]
Weighted average fair value of options granted	$ 1.80	$ 1.20
Dividend yields	0.00%
Expected volatility, minimum	72.21%	70.60%
Expected volatility, maximum	83.47%	79.40%
Weighted average expected volatility	81.76%	72.73%
Risk free interest rates	2.74%	2.15%
Weighted average expected term (in years)	6 years	6 years

Restricted Stock, Stock Options and Other Stock Plans - Summary Information about Stock Option Activity (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-Average Remaining Contractual Term, Outstanding	7 years 8 months 12 days	8 years 6 months
2004 Long-Term Compensation Plan [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance, Shares	436	112
Granted, Shares	84	345
Exercised, Shares	0	0
Forfeited or Expired, Shares	(102)	(21)
Ending balance, Shares	418	436
Exercisable, Shares	179
Weighted Average Exercise Price, Beginning balance	$ 3.25	$ 8.16
Weighted Average Exercise Price, Granted	2.90	1.89
Weighted Average Exercise Price, Exercised	0	0
Weighted Average Exercise Price, Forfeited or Expired	2.28	7.06
Weighted Average Exercise Price, Ending balance	3.42	$ 3.25
Weighted Average Exercise Price, Exercisable	$ 5.10
Weighted-Average Remaining Contractual Term, Outstanding	7 years 8 months 1 day	8 years 6 months
Weighted-Average Remaining Contractual Term, Exercisable at December 31, 2017	6 years 2 months 4 days
Aggregate Intrinsic Value Outstanding	$ 9
Aggregate Intrinsic Value Exercisable	$ 2

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, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares, Beginning balance	243	20
Restricted shares, Granted	0	245
Restricted shares, Vested	(68)	(22)
Restricted shares, Forfeited or Expired	(37)	0
Restricted shares, Ending balance	138	243
Weighted Average Grant Date Fair Value, Beginning balance	$ 2.16	$ 1.89
Weighted Average Grant Date Fair Value, Granted	0	2.13
Weighted Average Grant Date Fair Value, Vested	2.13	1.88
Weighted Average Grant Date Fair Value, Forfeited or Expired	2.11	0
Weighted Average Grant Date Fair Value, Ending balance	$ 2.18	$ 2.16

Consolidation of Variable Interest Entities - Additional Information (Detail) - USD ($)	1 Months Ended					12 Months Ended
	Oct. 31, 2017	Jan. 31, 2017	Aug. 31, 2016	Jun. 30, 2015	Dec. 31, 2013	Dec. 31, 2018	Dec. 31, 2017	Oct. 31, 2016
Variable Interest Entity [Line Items]
Distribution to non-controlling interests						$ 1,750,000	$ 6,432,000
Total assets of VIEs						19,300,000	30,600,000
Total liabilities of VIEs						12,600,000	15,900,000
Comstock Investors VIII, L.C [Member]
Variable Interest Entity [Line Items]
Cumulative, compounded, preferred return rate					20.00%
Percentage of cumulative cash on cash return					20.00%
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] \| Class A [Member]
Variable Interest Entity [Line Items]
Number of warrants issued					15,000
Aggregate fair value of warrants for investors					$ 131,000
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%
Comstock Investors IX, L.C. [Member] \| Class B [Member]
Variable Interest Entity [Line Items]
Distribution to non-controlling interests	$ 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]
Cumulative, compounded, preferred return rate			6.00%
Distribution to non-controlling interests						$ 1,800,000	$ 1,000,000
Aggregate capital raise	19,500,000
Additional capital raised	$ 5,000,000
Warrants issued	50,000
Aggregate fair value	$ 258,000
Comstock Investors X, L.C. [Member] \| Class A [Member]
Variable Interest Entity [Line Items]
Number of warrants issued			150,000
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					$ 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 ($)				3 Months Ended	9 Months Ended	12 Months Ended
	May 23, 2018	Mar. 22, 2017	Dec. 29, 2015	Sep. 30, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Future minimum lease payments						$ 400,000
Lease expiration date						Sep. 30, 2019
Revenue-asset management						$ 56,749,000	$ 45,430,000
Credit facility outstanding			$ 5,000,000
Income tax expense (benefit)						(920,000)	$ 38,000
Gains on extinguishment of Series B preferred stock and issuance of Series C preferred stock		$ 1,011,000
Series B Preferred Stock [Member]
Related Party Transaction [Line Items]
Shares exchanged pursuant to agreement, converted		858,210
Paid-in-kind dividends on preferred stock, number of shares							15,663
Paid-in-kind dividends on preferred stock, liquidation value							$ 78,000
Comstock Growth Fund II, L.C. [Member] \| Notes Payable, Other Payables [Member]
Related Party Transaction [Line Items]
Gain loss on conversion of notes						$ 3,700,000
Income tax expense (benefit)				$ (500,000)	$ (500,000)
Comstock Growth Fund II, L.C. [Member] \| Notes Payable, Other Payables [Member] \| Note Exchange Agreement [Member]
Related Party Transaction [Line Items]
Credit facility outstanding	$ 3,700,000						$ 3,600,000
Series C Preferred Stock [Member]
Related Party Transaction [Line Items]
Preferred stock par value per share						$ 0.01	$ 0.01
Shares exchanged pursuant to agreement, issued		772,210
Par value per share		$ 0.01
Stated value per share		$ 5.00
Paid-in-kind dividends on preferred stock, number of shares							0
Asset Management [Member]
Related Party Transaction [Line Items]
Revenue-asset management						$ 12,473,000	$ 0
Comstock Asset Management, L.C. [Member]
Related Party Transaction [Line Items]
Total rental payments made under lease agreement						400,000	200,000
Rent expense						400,000	200,000
Fixed annual payment						1,000,000
Comstock Asset Management, L.C. [Member] \| Trade Receivables [Member]
Related Party Transaction [Line Items]
Related parties						0	145,000
Comstock Asset Management, L.C. [Member] \| Services and out of Pocket Expenses Incurred [Member] \| Revenue - Real Estate Services [Member]
Related Party Transaction [Line Items]
Services and out-of-pocket expenses incurred						120,000	1,100,000
Comstock Asset Management, L.C. [Member] \| Asset Management [Member]
Related Party Transaction [Line Items]
Revenue-asset management						12,000,000
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
Stonehenge [Member] \| Series B Preferred Stock [Member]
Related Party Transaction [Line Items]
Shares issued upon conversion of debt			772,210
Preferred stock par value per share			$ 0.01
Preferred stock redemption price			$ 5.00
Preferred stock dividend rate, percentage			8.75%
Comstock Growth Fund II, L.C. [Member] \| Note Exchange Agreement [Member]
Related Party Transaction [Line Items]
Gain loss on conversion of notes	3,700,000					3,700,000
Income tax expense (benefit)	(500,000)					$ (900,000)
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
Comstock Growth Fund II, L.C. [Member] \| Notes Payable, Other Payables [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.
Comstock Growth Fund II, L.C. [Member] \| Notes Payable, Other Payables [Member] \| Note Exchange Agreement [Member]
Related Party Transaction [Line Items]
Credit facility outstanding	$ 3,700,000						$ 3,600,000
Series C- Non Convertible Preferred Stock [Member] \| Comstock Growth Fund II, L.C. [Member] \| Notes Payable, Other Payables [Member] \| Note Exchange Agreement [Member]
Related Party Transaction [Line Items]
Preferred stock par value per share	$ 0.01
Convertible preferred shares issued upon conversion	738,390
Series C Preferred Stock [Member] \| Comstock Growth Fund II, L.C. [Member] \| Notes Payable, Other Payables [Member] \| Note Exchange Agreement [Member]
Related Party Transaction [Line Items]
Preferred stock liquidation value per share	$ 5.00

Warrants - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	12 Months Ended
	Oct. 31, 2017	Dec. 31, 2018	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
Trading days preceding the issuance of warrant		20 days
Warrant exercise date		Mar. 14, 2023
Class A [Member] \| Comstock Investors VIII, L.C [Member]
Class of Stock [Line Items]
Initial investment amount		$ 250
Trading days preceding the issuance of warrant		20 days
Warrant exercise date		Dec. 12, 2023
Class A [Member] \| Comstock Investors X, L.C. [Member]
Class of Stock [Line Items]
Common stock and warrants exercisable	50	150	150
Trading days preceding the issuance of warrant		20 days
Warrant exercise date	Oct. 16, 2027	Aug. 15, 2026
Class A [Member] \| Maximum [Member] \| Comstock Growth Fund [Member]
Class of Stock [Line Items]
Common stock and warrants exercisable		76
Warrant exercise price		$ 7.63
Warrant exercise period from date of issuance		10 years
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] \| BridgeCom [Member]
Class of Stock [Line Items]
Common stock and warrants exercisable		143
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
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

Unconsolidated Joint Venture - Additional Information (Detail) - Title Insurance Joint Venture [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]
Earnings from the unconsolidated joint venture	$ 137	$ 53
Collected and recorded distribution from joint venture	89	83
Other Assets, Net [Member]
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint venture	$ 72	$ 27

- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References + Details

Unconsolidated Joint Venture - Summary of Unaudited Financial Information for Unconsolidated Joint Venture (Detail) - Title Insurance Joint Venture [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Statement of Operations:
Total net revenue	$ 391	$ 219
Total expenses	117	114
Net income	274	105
Comstock Holding Companies, Inc. share of net income	$ 137	$ 53

- Definition

+ References + Details

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Tax Examination [Line Items]
Income tax expense (benefit)	$ 12,000	$ 38,000
Effective tax rate	0.24%	0.91%
Corporate federal income tax rate	21.00%	35.00%
Decrease in net deferred tax assets	$ 20,000,000
Federal and state Net Operating Losses	$ 147,000,000
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
Tax year remain subject to examination	2015 2016 2017
Minimum [Member]
Income Tax Examination [Line Items]
Percentage of ownership change	50.00%
Percentage of change in ownership of shareholders	1.00%
Maximum [Member]
Income Tax Examination [Line Items]
Percentage of change in ownership of shareholders	5.00%

Income Taxes - Schedule of Income Tax Provision (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ 0	$ 0
State	18	24
Current Income Tax Expense Total	18	24
Deferred:
Federal	(607)	15,171
State	(111)	2,724
Deferred Income Tax Expense Total	(718)	17,895
Valuation allowance	712	(17,881)
Total income tax expense	$ 12	$ 38

Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets:
Inventory	$ 500	$ 834
Warranty	63	67
Net operating loss and tax credit carryforwards	37,937	37,045
Accrued expenses	4	4
Stock based compensation	379	352
Investment in affiliates	0	48
Deferred tax assets gross	38,883	38,350
Less - valuation allowance	(38,809)	(38,328)
Net deferred tax assets	74	22
Deferred tax liabilities:
Depreciation and amortization	(11)	(21)
Investment in affiliates	(28)	0
Goodwill amortization	(44)	(15)
Net deferred tax liabilities	(83)	(36)
Net deferred tax assets (liabilities)	$ (9)	$ (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, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Federal statutory rate	(21.00%)	(35.00%)
State income taxes - net of federal benefit	(4.74%)	(3.90%)
Permanent differences	16.52%	(10.94%)
Return to provision adjustments	(4.29%)	5.18%
Change in valuation allowance	14.32%	(417.08%)
Current state income tax	0.36%	0.56%
Change in enacted rate	1.52%	462.23%
Other, net	(2.45%)	(0.15%)
Effective tax rate	0.24%	0.91%

Preferred Stock - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	May 23, 2018	Mar. 22, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 29, 2015
Class of Stock [Line Items]
Gains on extinguishment of Series B preferred stock and issuance of Series C preferred stock		$ 1,011
Credit facility outstanding					$ 5,000
Income tax expense (benefit)			$ (920)	$ 38
Note Exchange Agreement [Member] \| Comstock Growth Fund II, L.C. [Member]
Class of Stock [Line Items]
Gain loss on conversion of notes	$ 3,700		3,700
Income tax expense (benefit)	(500)		$ (900)
Notes Payable, Other Payables [Member] \| Comstock Growth Fund II, L.C. [Member]
Class of Stock [Line Items]
Credit facility outstanding					$ 5,000
Notes Payable, Other Payables [Member] \| Note Exchange Agreement [Member] \| Comstock Growth Fund II, L.C. [Member]
Class of Stock [Line Items]
Credit facility outstanding	$ 3,700			$ 3,600
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Paid-in-kind dividends on preferred stock, number of shares				15,663
Paid-in-kind dividends on preferred stock, liquidation value				$ 78
Shares exchanged pursuant to agreement, converted		858,210
Series C Preferred Stock [Member]
Class of Stock [Line Items]
Paid-in-kind dividends on preferred stock, number of shares				0
Shares exchanged pursuant to agreement, issued		772,210
Par value per share		$ 0.01
Stated value per share		$ 5.00
Preferred Stock, par value			$ 0.01	$ 0.01
Series C- Non Convertible Preferred Stock [Member] \| Notes Payable, Other Payables [Member] \| Note Exchange Agreement [Member] \| Comstock Growth Fund II, L.C. [Member]
Class of Stock [Line Items]
Convertible preferred shares issued upon conversion	738,390
Preferred Stock, par value	$ 0.01
Preferred stock liquidation value per share	$ 5.00

Subsequent Events - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Feb. 15, 2019	Dec. 31, 2017
Subsequent Event [Line Items]
Capital stock, shares authorized	31,428,571
Outstanding borrowings under loan	$ 18,930		$ 39,393
Construction Loans [Member] \| The Woods at Spring Ridge [Member]
Subsequent Event [Line Items]
Loan repayment date	Mar. 14, 2019
Debt instrument maturity date	Mar. 15, 2019
Outstanding borrowings under loan	$ 1,800
Subsequent Events [Member]
Subsequent Event [Line Items]
Capital stock, shares authorized		80,000,000
Class A [Member]
Subsequent Event [Line Items]
Common stock, shares authorized	11,038,071		11,038,071
Class A [Member] \| Subsequent Events [Member]
Subsequent Event [Line Items]
Common stock, shares authorized		59,779,750
Series C Preferred Stock [Member]
Subsequent Event [Line Items]
Preferred Stock, shares authorized	3,000,000		3,000,000
Series C Preferred Stock [Member] \| Subsequent Events [Member]
Subsequent Event [Line Items]
Preferred Stock, shares authorized		4,500,000