Cover - USD ($)	12 Months Ended
	Dec. 31, 2021	Feb. 28, 2022	Jun. 30, 2021
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Entity File Number	001-32375
Entity Registrant Name	Comstock Holding Companies, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-1164345
Entity Address, Address Line One	1900 Reston Metro Plaza
Entity Address, Address Line Two	10th 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
Title of 12(b) Security	Class A Common Stock, $0.01 par value
Trading Symbol	CHCI
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float			$ 16,094,232
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCEThe information required by Part III (Items 10, 11, 12, 13 and 14) will be incorporated by reference from the Registrant’s definitive proxy statement for its 2022 Annual Meeting of Stockholders, which will be filed pursuant to Regulation 14A with the United States Securities and Exchange Commission (“SEC”) within 120 days after the end of the fiscal year to which this report relates.
Amendment Flag	false
Document Period End Date	Dec. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Entity Central Index Key	0001299969
Current Fiscal Year End Date	--12-31
Common Class A
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		8,118,480
Common Class B
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		220,250