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Segment Disclosures - Segment Reporting Information (Detail) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Segment Reporting Information [Line Items] |  |  |
Gross revenue | $ 8,799 | $ 10,268 |
Gross profit (loss) | 586 | 943 |
Net (loss) income | (628) | (664) |
Depreciation and amortization | 37 | 74 |
Interest expense | 85 | 0 |
Total assets | 53,298 | 56,396 | $ 51,158
Homebuilding [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Gross revenue | 5,561 | 10,064 |
Gross profit (loss) | 66 | 963 |
Net (loss) income | (681) | (644) |
Depreciation and amortization | 0 | 65 |
Interest expense | 61 | 0 |
Total assets | 46,409 | 56,317 |
Asset Management [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Gross revenue | 2,791 | 0 |
Gross profit (loss) | 250 | 0 |
Net (loss) income | 250 | 0 |
Depreciation and amortization | 0 | 0 |
Interest expense | 0 | 0 |
Total assets | 3,976 | 0 |
Real Estate Services [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Gross revenue | 447 | 204 |
Gross profit (loss) | 270 | (20) |
Net (loss) income | (197) | (20) |
Depreciation and amortization | 37 | 9 |
Interest expense | 24 | 0 |
Total assets | $ 2,913 | $ 79 |

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