Unconsolidated Joint Venture - Summarized Financial Information for Unconsolidated Joint Venture (Detail) - Title Insurance Joint Venture [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Operations:
Total net revenue	$ 48	$ 101	$ 196	$ 159
Total expenses	28	31	61	61
Net income	20	70	135	98
Comstock Holding Companies, Inc. share of net income	$ 10	$ 35	$ 68	$ 49

The amount of the cost of sales reported by an equity method investment of the entity.

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The amount of net income (loss) reported by an equity method investment of the entity.

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The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

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