SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION - Schedule of Real Estate and Accumulated Depreciation (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 181,856
Land	150,138
Buildings	370,889
Cost Capitalized Subsequent to Acquisition	115,154
Land	168,177
Building & Improvements	468,004
Total	636,181	$ 568,951	$ 559,875	$ 359,296
Accumulated Depreciation	78,793	$ 67,365	$ 66,054	$ 62,933
Multifamily
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	160,086
Land	56,140
Buildings	279,186
Cost Capitalized Subsequent to Acquisition	93,657
Land	72,948
Building & Improvements	356,035
Total	428,983
Accumulated Depreciation	28,720
Multifamily | Alera
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	8,554
Land	0
Buildings	0
Cost Capitalized Subsequent to Acquisition	36,583
Land	6,064
Building & Improvements	30,519
Total	36,583
Accumulated Depreciation	0
Multifamily | Bandera Ridge
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land	0
Buildings	0
Cost Capitalized Subsequent to Acquisition	26,273
Land	2,700
Building & Improvements	23,573
Total	26,273
Accumulated Depreciation	0
Multifamily | Blue Lake Villas
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	9,327
Land	6,920
Buildings	27,680
Cost Capitalized Subsequent to Acquisition	219
Land	6,920
Building & Improvements	27,899
Total	34,819
Accumulated Depreciation	1,517
Multifamily | Blue Lake Villas Phase II
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	3,271
Land	2,400
Buildings	9,600
Cost Capitalized Subsequent to Acquisition	53
Land	2,400
Building & Improvements	9,653
Total	12,053
Accumulated Depreciation	523
Multifamily | Chelsea
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	7,878
Land	1,225
Buildings	11,230
Cost Capitalized Subsequent to Acquisition	53
Land	1,231
Building & Improvements	11,277
Total	12,508
Accumulated Depreciation	1,794
Multifamily | Forest Grove
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	6,421
Land	1,440
Buildings	10,234
Cost Capitalized Subsequent to Acquisition	64
Land	1,440
Building & Improvements	10,298
Total	11,738
Accumulated Depreciation	1,191
Multifamily | Landing on Bayou Cane
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	14,162
Land	2,011
Buildings	18,255
Cost Capitalized Subsequent to Acquisition	122
Land	2,011
Building & Improvements	18,377
Total	20,388
Accumulated Depreciation	2,421
Multifamily | Legacy at Pleasant Grove
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	12,381
Land	2,005
Buildings	18,109
Cost Capitalized Subsequent to Acquisition	116
Land	2,033
Building & Improvements	18,197
Total	20,230
Accumulated Depreciation	5,127
Multifamily | Merano
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land	0
Buildings	0
Cost Capitalized Subsequent to Acquisition	24,828
Land	4,500
Building & Improvements	20,328
Total	24,828
Accumulated Depreciation	0
Multifamily | Mountain Creek
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land	0
Buildings	0
Cost Capitalized Subsequent to Acquisition	5,037
Land	3,510
Building & Improvements	1,527
Total	5,037
Accumulated Depreciation	0
Multifamily | Northside on Travis
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	11,125
Land	7,160
Buildings	28,640
Cost Capitalized Subsequent to Acquisition	14
Land	7,160
Building & Improvements	28,654
Total	35,814
Accumulated Depreciation	1,552
Multifamily | Parc at Denham Springs
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	16,048
Land	6,060
Buildings	24,240
Cost Capitalized Subsequent to Acquisition	29
Land	6,060
Building & Improvements	24,269
Total	30,329
Accumulated Depreciation	1,318
Multifamily | Parc at Denham Springs Phase II
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	15,419
Land	1,505
Buildings	16,975
Cost Capitalized Subsequent to Acquisition	0
Land	1,505
Building & Improvements	16,975
Total	18,480
Accumulated Depreciation	2,186
Multifamily | Residences at Holland Lake
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	10,219
Land	6,300
Buildings	25,200
Cost Capitalized Subsequent to Acquisition	51
Land	6,300
Building & Improvements	25,251
Total	31,551
Accumulated Depreciation	1,373
Multifamily | Villas at Bon Secour
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	18,798
Land	2,715
Buildings	15,385
Cost Capitalized Subsequent to Acquisition	87
Land	2,715
Building & Improvements	15,472
Total	18,187
Accumulated Depreciation	2,491
Multifamily | Villas of Park West I
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	8,983
Land	8,200
Buildings	32,800
Cost Capitalized Subsequent to Acquisition	100
Land	8,200
Building & Improvements	32,900
Total	41,100
Accumulated Depreciation	1,783
Multifamily | Villas of Park West II
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	8,158
Land	6,860
Buildings	27,440
Cost Capitalized Subsequent to Acquisition	22
Land	6,860
Building & Improvements	27,462
Total	34,322
Accumulated Depreciation	1,487
Multifamily | Vista Ridge
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	9,342
Land	1,339
Buildings	13,398
Cost Capitalized Subsequent to Acquisition	6
Land	1,339
Building & Improvements	13,404
Total	14,743
Accumulated Depreciation	3,957
Commercial
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	10,939
Land	27,783
Buildings	91,703
Cost Capitalized Subsequent to Acquisition	20,242
Land	27,759
Building & Improvements	111,969
Total	139,728
Accumulated Depreciation	50,073
Commercial | 770 South Post Oak
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	10,939
Land	1,763
Buildings	16,312
Cost Capitalized Subsequent to Acquisition	1,537
Land	1,763
Building & Improvements	17,849
Total	19,612
Accumulated Depreciation	4,473
Commercial | Browning Place
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land	5,096
Buildings	49,441
Cost Capitalized Subsequent to Acquisition	15,054
Land	5,096
Building & Improvements	64,495
Total	69,591
Accumulated Depreciation	32,392
Commercial | Stanford Center
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land	20,278
Buildings	25,876
Cost Capitalized Subsequent to Acquisition	3,749
Land	20,278
Building & Improvements	29,625
Total	49,903
Accumulated Depreciation	13,208
Commercial | Other
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land	646
Buildings	74
Cost Capitalized Subsequent to Acquisition	(98)
Land	622
Building & Improvements	0
Total	622
Accumulated Depreciation	0
Developed and Undeveloped Land
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	10,831
Land	66,215
Buildings	0
Cost Capitalized Subsequent to Acquisition	1,255
Land	67,470
Building & Improvements	0
Total	67,470
Accumulated Depreciation	0
Developed and Undeveloped Land | Mercer Crossing
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Land	2,999
Buildings	0
Cost Capitalized Subsequent to Acquisition	(166)
Land	2,833
Building & Improvements	0
Total	2,833
Accumulated Depreciation	0
Developed and Undeveloped Land | Windmill Farms
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	2,395
Land	43,608
Buildings	0
Cost Capitalized Subsequent to Acquisition	3,717
Land	47,325
Building & Improvements	0
Total	47,325
Accumulated Depreciation	0
Developed and Undeveloped Land | Other
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	8,436
Land	19,608
Buildings	0
Cost Capitalized Subsequent to Acquisition	(2,296)
Land	17,312
Building & Improvements	0
Total	17,312
Accumulated Depreciation	$ 0