v3.19.3
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2019
Nov. 11, 2019
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Entity Registrant Name Comstock Holding Companies, Inc.  
Entity Central Index Key 0001299969  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Shell Company false  
Entity File Number 1-32375  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 20-1164345  
Entity Address, Address Line One 1886 Metro Center Drive, 4th Floor  
Entity Address, City or Town Reston  
Entity Address, State or Province VA  
Entity Address, Postal Zip Code 20190  
City Area Code (703)  
Local Phone Number 230-1985  
Document Quarterly Report true  
Document Transition Report false  
Class A [Member]    
Document Information [Line Items]    
Trading Symbol CHCI  
Entity Common Stock, Shares Outstanding   7,747,075
Title of 12(b) Security Class A Common Stock  
Security Exchange Name NASDAQ  
Class B [Member]    
Document Information [Line Items]    
No Trading Symbol Flag true  
Entity Common Stock, Shares Outstanding   220,250
Title of 12(b) Security Class B Common Stock