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SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION - Schedule of Real Estate and Accumulated Depreciation (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
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SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | $ 179,141 |  |  |
Initial Cost, Land | 150,138 |  |  |
Initial Cost, Buildings | 370,889 |  |  |
Cost Capitalized Subsequent to Acquisition | 47,924 |  |  |
Land | 153,073 |  |  |
Building & Improvements | 415,878 |  |  |
Total | 568,951 | $ 559,875 | $ 359,296 | $ 459,801
Accumulated Depreciation | 67,365 | $ 66,054 | $ 62,933 | $ 82,418
Multifamily |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 155,119 |  |  |
Initial Cost, Land | 56,140 |  |  |
Initial Cost, Buildings | 279,186 |  |  |
Cost Capitalized Subsequent to Acquisition | 27,734 |  |  |
Land | 56,174 |  |  |
Building & Improvements | 306,886 |  |  |
Total | 363,060 |  |  |
Accumulated Depreciation | 21,595 |  |  |
Multifamily | Blue Lake Villas |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 9,503 |  |  |
Initial Cost, Land | 6,920 |  |  |
Initial Cost, Buildings | 27,680 |  |  |
Cost Capitalized Subsequent to Acquisition | 56 |  |  |
Land | 6,920 |  |  |
Building & Improvements | 27,736 |  |  |
Total | 34,656 |  |  |
Accumulated Depreciation | 811 |  |  |
Multifamily | Blue Lake Villas Phase II |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 3,349 |  |  |
Initial Cost, Land | 2,400 |  |  |
Initial Cost, Buildings | 9,600 |  |  |
Cost Capitalized Subsequent to Acquisition | 0 |  |  |
Land | 2,400 |  |  |
Building & Improvements | 9,600 |  |  |
Total | 12,000 |  |  |
Accumulated Depreciation | 280 |  |  |
Multifamily | Chelsea |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 8,064 |  |  |
Initial Cost, Land | 1,225 |  |  |
Initial Cost, Buildings | 11,230 |  |  |
Cost Capitalized Subsequent to Acquisition | 53 |  |  |
Land | 1,231 |  |  |
Building & Improvements | 11,277 |  |  |
Total | 12,508 |  |  |
Accumulated Depreciation | 1,493 |  |  |
Multifamily | Forest Grove |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 6,988 |  |  |
Initial Cost, Land | 1,440 |  |  |
Initial Cost, Buildings | 10,234 |  |  |
Cost Capitalized Subsequent to Acquisition | 37 |  |  |
Land | 1,440 |  |  |
Building & Improvements | 10,271 |  |  |
Total | 11,711 |  |  |
Accumulated Depreciation | 931 |  |  |
Multifamily | Landing on Bayou Cane |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 14,442 |  |  |
Initial Cost, Land | 2,011 |  |  |
Initial Cost, Buildings | 18,255 |  |  |
Cost Capitalized Subsequent to Acquisition | 132 |  |  |
Land | 2,011 |  |  |
Building & Improvements | 18,387 |  |  |
Total | 20,398 |  |  |
Accumulated Depreciation | 1,929 |  |  |
Multifamily | Legacy at Pleasant Grove |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 12,716 |  |  |
Initial Cost, Land | 2,005 |  |  |
Initial Cost, Buildings | 18,109 |  |  |
Cost Capitalized Subsequent to Acquisition | 116 |  |  |
Land | 2,033 |  |  |
Building & Improvements | 18,197 |  |  |
Total | 20,230 |  |  |
Accumulated Depreciation | 4,644 |  |  |
Multifamily | Northside on Travis |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 11,394 |  |  |
Initial Cost, Land | 7,160 |  |  |
Initial Cost, Buildings | 28,640 |  |  |
Cost Capitalized Subsequent to Acquisition | 0 |  |  |
Land | 7,160 |  |  |
Building & Improvements | 28,640 |  |  |
Total | 35,800 |  |  |
Accumulated Depreciation | 835 |  |  |
Multifamily | Parc at Denham Springs |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 16,399 |  |  |
Initial Cost, Land | 6,060 |  |  |
Initial Cost, Buildings | 24,240 |  |  |
Cost Capitalized Subsequent to Acquisition | 20 |  |  |
Land | 6,060 |  |  |
Building & Improvements | 24,260 |  |  |
Total | 30,320 |  |  |
Accumulated Depreciation | 707 |  |  |
Multifamily | Parc at Denham Springs Phase II |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 15,608 |  |  |
Initial Cost, Land | 1,505 |  |  |
Initial Cost, Buildings | 16,975 |  |  |
Cost Capitalized Subsequent to Acquisition | 0 |  |  |
Land | 1,505 |  |  |
Building & Improvements | 16,975 |  |  |
Total | 18,480 |  |  |
Accumulated Depreciation | 1,764 |  |  |
Multifamily | Residences at Holland Lake |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 10,424 |  |  |
Initial Cost, Land | 6,300 |  |  |
Initial Cost, Buildings | 25,200 |  |  |
Cost Capitalized Subsequent to Acquisition | 45 |  |  |
Land | 6,300 |  |  |
Building & Improvements | 25,245 |  |  |
Total | 31,545 |  |  |
Accumulated Depreciation | 738 |  |  |
Multifamily | Villas at Bon Secour |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 19,205 |  |  |
Initial Cost, Land | 2,715 |  |  |
Initial Cost, Buildings | 15,385 |  |  |
Cost Capitalized Subsequent to Acquisition | 52 |  |  |
Land | 2,715 |  |  |
Building & Improvements | 15,437 |  |  |
Total | 18,152 |  |  |
Accumulated Depreciation | 2,098 |  |  |
Multifamily | Villas of Park West I |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 9,181 |  |  |
Initial Cost, Land | 8,200 |  |  |
Initial Cost, Buildings | 32,800 |  |  |
Cost Capitalized Subsequent to Acquisition | 22 |  |  |
Land | 8,200 |  |  |
Building & Improvements | 32,822 |  |  |
Total | 41,022 |  |  |
Accumulated Depreciation | 957 |  |  |
Multifamily | Villas of Park West II |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 8,334 |  |  |
Initial Cost, Land | 6,860 |  |  |
Initial Cost, Buildings | 27,440 |  |  |
Cost Capitalized Subsequent to Acquisition | 0 |  |  |
Land | 6,860 |  |  |
Building & Improvements | 27,440 |  |  |
Total | 34,300 |  |  |
Accumulated Depreciation | 800 |  |  |
Multifamily | Vista Ridge |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 9,512 |  |  |
Initial Cost, Land | 1,339 |  |  |
Initial Cost, Buildings | 13,398 |  |  |
Cost Capitalized Subsequent to Acquisition | 6 |  |  |
Land | 1,339 |  |  |
Building & Improvements | 13,404 |  |  |
Total | 14,743 |  |  |
Accumulated Depreciation | 3,608 |  |  |
Multifamily | Development projects |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 0 |  |  |
Initial Cost, Land | 0 |  |  |
Initial Cost, Buildings | 0 |  |  |
Cost Capitalized Subsequent to Acquisition | 27,195 |  |  |
Land | 0 |  |  |
Building & Improvements | 27,195 |  |  |
Total | 27,195 |  |  |
Accumulated Depreciation | 0 |  |  |
Commercial |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 11,187 |  |  |
Initial Cost, Land | 27,783 |  |  |
Initial Cost, Buildings | 91,703 |  |  |
Cost Capitalized Subsequent to Acquisition | 17,265 |  |  |
Land | 27,759 |  |  |
Building & Improvements | 108,992 |  |  |
Total | 136,751 |  |  |
Accumulated Depreciation | 45,770 |  |  |
Commercial | 770 South Post Oak |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 11,187 |  |  |
Initial Cost, Land | 1,763 |  |  |
Initial Cost, Buildings | 16,312 |  |  |
Cost Capitalized Subsequent to Acquisition | 1,321 |  |  |
Land | 1,763 |  |  |
Building & Improvements | 17,633 |  |  |
Total | 19,396 |  |  |
Accumulated Depreciation | 3,905 |  |  |
Commercial | Browning Place |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 0 |  |  |
Initial Cost, Land | 5,096 |  |  |
Initial Cost, Buildings | 49,441 |  |  |
Cost Capitalized Subsequent to Acquisition | 14,005 |  |  |
Land | 5,096 |  |  |
Building & Improvements | 63,446 |  |  |
Total | 68,542 |  |  |
Accumulated Depreciation | 29,341 |  |  |
Commercial | Stanford Center |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 0 |  |  |
Initial Cost, Land | 20,278 |  |  |
Initial Cost, Buildings | 25,876 |  |  |
Cost Capitalized Subsequent to Acquisition | 2,037 |  |  |
Land | 20,278 |  |  |
Building & Improvements | 27,913 |  |  |
Total | 48,191 |  |  |
Accumulated Depreciation | 12,524 |  |  |
Commercial | Other |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 0 |  |  |
Initial Cost, Land | 646 |  |  |
Initial Cost, Buildings | 74 |  |  |
Cost Capitalized Subsequent to Acquisition | (98) |  |  |
Land | 622 |  |  |
Building & Improvements | 0 |  |  |
Total | 622 |  |  |
Accumulated Depreciation | 0 |  |  |
Land |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 12,835 |  |  |
Initial Cost, Land | 66,215 |  |  |
Initial Cost, Buildings | 0 |  |  |
Cost Capitalized Subsequent to Acquisition | 2,925 |  |  |
Land | 69,140 |  |  |
Building & Improvements | 0 |  |  |
Total | 69,140 |  |  |
Accumulated Depreciation | 0 |  |  |
Land | Mercer Crossing |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 0 |  |  |
Initial Cost, Land | 2,999 |  |  |
Initial Cost, Buildings | 0 |  |  |
Cost Capitalized Subsequent to Acquisition | (166) |  |  |
Land | 2,833 |  |  |
Building & Improvements | 0 |  |  |
Total | 2,833 |  |  |
Accumulated Depreciation | 0 |  |  |
Land | Windmill Farms |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 4,399 |  |  |
Initial Cost, Land | 43,608 |  |  |
Initial Cost, Buildings | 0 |  |  |
Cost Capitalized Subsequent to Acquisition | 4,570 |  |  |
Land | 48,178 |  |  |
Building & Improvements | 0 |  |  |
Total | 48,178 |  |  |
Accumulated Depreciation | 0 |  |  |
Land | Other |  |  |  |
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items] |  |  |  |
Encumbrances | 8,436 |  |  |
Initial Cost, Land | 19,608 |  |  |
Initial Cost, Buildings | 0 |  |  |
Cost Capitalized Subsequent to Acquisition | (1,479) |  |  |
Land | 18,129 |  |  |
Building & Improvements | 0 |  |  |
Total | 18,129 |  |  |
Accumulated Depreciation | $ 0 |  |  |

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