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Unconsolidated Joint Venture - Summarized Financial Information for Unconsolidated Joint Venture (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Statement of Operations: |  |  |  |
Income (loss) before income tax expense | $ 1,234 | $ (78) | $ 1,270 | $ 378
Comstock Holding Companies, Inc. share of net income |  |  | (93) | (47)
Title Insurance Joint Venture |  |  |  |
Statement of Operations: |  |  |  |
Comstock Holding Companies, Inc. share of net income | 18 | 10 | 15 | 68
Title Insurance Joint Venture |  |  |  |
Statement of Operations: |  |  |  |
Total net revenue | 64 | 48 | 95 | 196
Total expenses | 29 | 28 | 66 | 61
Income (loss) before income tax expense | $ 35 | $ 20 | $ 29 | $ 135

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