SCHEDULE III REAL ESTATE ASSETS AND ACCUMULATED DEPRECIATION AND AMORTIZATION (Schedule) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) property	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Real Estate and Accumulated Depreciation [Line Items]
Land	$ 199,156
Building and Improvements	929,403
Total	1,128,559
Cost Capitalized Subsequent to Acquisition	(82,339)
Land	198,074
Building and Improvements	848,146
Gross Amount at which Carried at Close of Period, Total	1,046,220	$ 1,262,089	$ 1,361,154	$ 1,345,240
Accumulated Depreciation and Amortization	(162,141)	$ (167,335)	$ (141,750)	$ (130,441)
Aggregate cost of real estate for federal income tax purposes	$ 1,600,000
Richardson Office
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	100.00%
Land	$ 1,847
Building and Improvements	25,745
Total	27,592
Cost Capitalized Subsequent to Acquisition	14,877
Land	2,034
Building and Improvements	40,435
Gross Amount at which Carried at Close of Period, Total	42,469
Accumulated Depreciation and Amortization	$ (19,436)
Original Date of Construction	1980/1985
Date Acquired or Foreclosed on	Nov. 23, 2011
Madison Square
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	90.00%
Encumbrances	$ 20,722
Land	9,827
Building and Improvements	21,545
Total	31,372
Cost Capitalized Subsequent to Acquisition	4,809
Land	9,827
Building and Improvements	26,354
Gross Amount at which Carried at Close of Period, Total	36,181
Accumulated Depreciation and Amortization	$ (6,926)
Original Date of Construction	2003/2007/2008
Date Acquired or Foreclosed on	Oct. 05, 2020
Park Centre
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	100.00%
Land	$ 3,251
Building and Improvements	27,941
Total	31,192
Cost Capitalized Subsequent to Acquisition	7,411
Land	3,251
Building and Improvements	35,352
Gross Amount at which Carried at Close of Period, Total	38,603
Accumulated Depreciation and Amortization	$ (15,530)
Original Date of Construction	2000
Date Acquired or Foreclosed on	Mar. 28, 2013
Crown Pointe
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	100.00%
Encumbrances	$ 54,738
Land	22,590
Building and Improvements	62,610
Total	85,200
Cost Capitalized Subsequent to Acquisition	15,925
Land	22,590
Building and Improvements	78,535
Gross Amount at which Carried at Close of Period, Total	101,125
Accumulated Depreciation and Amortization	$ (27,489)
Original Date of Construction	1985/1989
Date Acquired or Foreclosed on	Feb. 14, 2017
The Marq
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	100.00%
Land	$ 10,387
Building and Improvements	75,878
Total	86,265
Cost Capitalized Subsequent to Acquisition	14,188
Land	10,387
Building and Improvements	90,066
Gross Amount at which Carried at Close of Period, Total	100,453
Accumulated Depreciation and Amortization	$ (24,029)
Original Date of Construction	1972
Date Acquired or Foreclosed on	Mar. 01, 2018
Eight & Nine Corporate Centre
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	100.00%
Encumbrances	$ 20,000
Land	17,401
Building and Improvements	58,794
Total	76,195
Cost Capitalized Subsequent to Acquisition	7,420
Land	17,401
Building and Improvements	66,214
Gross Amount at which Carried at Close of Period, Total	83,615
Accumulated Depreciation and Amortization	$ (18,345)
Original Date of Construction	2007
Date Acquired or Foreclosed on	Jun. 08, 2018
Georgia 400 Center
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	100.00%
Encumbrances	$ 39,662
Land	11,400
Building and Improvements	72,000
Total	83,400
Cost Capitalized Subsequent to Acquisition	(27,792)
Land	8,245
Building and Improvements	47,363
Gross Amount at which Carried at Close of Period, Total	55,608
Accumulated Depreciation and Amortization	$ (1,811)
Original Date of Construction	2001
Date Acquired or Foreclosed on	May 23, 2019
Lincoln Court
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	100.00%
Encumbrances	$ 31,325
Land	16,610
Building and Improvements	43,083
Total	59,693
Cost Capitalized Subsequent to Acquisition	(19,010)
Land	12,475
Building and Improvements	28,208
Gross Amount at which Carried at Close of Period, Total	40,683
Accumulated Depreciation and Amortization	$ (310)
Original Date of Construction	1985
Date Acquired or Foreclosed on	Oct. 05, 2020
Oakland City Center
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	100.00%
Land	$ 24,063
Building and Improvements	180,973
Total	205,036
Cost Capitalized Subsequent to Acquisition	(114,900)
Land	12,336
Building and Improvements	77,800
Gross Amount at which Carried at Close of Period, Total	90,136
Accumulated Depreciation and Amortization	$ (1,849)
Original Date of Construction	1985/1990
Date Acquired or Foreclosed on	Oct. 05, 2020
1180 Raymond
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	100.00%
Land	$ 8,292
Building and Improvements	37,651
Total	45,943
Cost Capitalized Subsequent to Acquisition	5,895
Land	8,292
Building and Improvements	43,546
Gross Amount at which Carried at Close of Period, Total	51,838
Accumulated Depreciation and Amortization	$ (13,902)
Original Date of Construction	1929
Date Acquired or Foreclosed on	Aug. 20, 2013
Q&C Hotel
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	90.00%
Land	$ 2,669
Building and Improvements	41,431
Total	44,100
Cost Capitalized Subsequent to Acquisition	(10,210)
Land	2,243
Building and Improvements	31,647
Gross Amount at which Carried at Close of Period, Total	33,890
Accumulated Depreciation and Amortization	$ (271)
Original Date of Construction	1913
Date Acquired or Foreclosed on	Oct. 05, 2020
Richardson Land I
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	100.00%
Land	$ 1,997
Building and Improvements	0
Total	1,997
Cost Capitalized Subsequent to Acquisition	4,258
Land	6,255
Building and Improvements	0
Gross Amount at which Carried at Close of Period, Total	6,255
Accumulated Depreciation and Amortization	$ 0
Date Acquired or Foreclosed on	Nov. 23, 2011
Richardson Land II
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	100.00%
Land	$ 3,096
Building and Improvements	0
Total	3,096
Cost Capitalized Subsequent to Acquisition	322
Land	3,418
Building and Improvements	0
Gross Amount at which Carried at Close of Period, Total	3,418
Accumulated Depreciation and Amortization	$ 0
Date Acquired or Foreclosed on	Sep. 04, 2014
Park Highlands Land II
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	100.00%
Land	$ 9,504
Building and Improvements	0
Total	9,504
Cost Capitalized Subsequent to Acquisition	13,594
Land	23,098
Building and Improvements	0
Gross Amount at which Carried at Close of Period, Total	23,098
Accumulated Depreciation and Amortization	$ 0
Date Acquired or Foreclosed on	Dec. 10, 2013
210 West 31st Street
Real Estate and Accumulated Depreciation [Line Items]
Ownership Percent	80.00%
Encumbrances	$ 0
Land	0
Building and Improvements	51,358
Total	51,358
Cost Capitalized Subsequent to Acquisition	(17,858)
Land	0
Building and Improvements	33,500
Gross Amount at which Carried at Close of Period, Total	33,500
Accumulated Depreciation and Amortization	$ 0
Date Acquired or Foreclosed on	Oct. 05, 2020
Residential Home Portfolio
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	2,093
Encumbrances	$ 191,529
Land	56,222
Building and Improvements	230,394
Total	286,616
Cost Capitalized Subsequent to Acquisition	18,732
Land	56,222
Building and Improvements	249,126
Gross Amount at which Carried at Close of Period, Total	305,348
Accumulated Depreciation and Amortization	$ (32,243)
Alabama Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	184
Ownership Percent	100.00%
Land	$ 3,144
Building and Improvements	12,331
Total	15,475
Cost Capitalized Subsequent to Acquisition	2,245
Land	3,263
Building and Improvements	14,457
Gross Amount at which Carried at Close of Period, Total	17,720
Accumulated Depreciation and Amortization	$ (1,871)
Arkansas Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	21
Ownership Percent	100.00%
Land	$ 447
Building and Improvements	1,868
Total	2,315
Cost Capitalized Subsequent to Acquisition	(62)
Land	415
Building and Improvements	1,838
Gross Amount at which Carried at Close of Period, Total	2,253
Accumulated Depreciation and Amortization	$ (238)
Delaware Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	3
Ownership Percent	100.00%
Land	$ 134
Building and Improvements	562
Total	696
Cost Capitalized Subsequent to Acquisition	12
Land	130
Building and Improvements	578
Gross Amount at which Carried at Close of Period, Total	708
Accumulated Depreciation and Amortization	$ (75)
Georgia Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	25
Ownership Percent	100.00%
Land	$ 386
Building and Improvements	1,944
Total	2,330
Cost Capitalized Subsequent to Acquisition	627
Land	544
Building and Improvements	2,413
Gross Amount at which Carried at Close of Period, Total	2,957
Accumulated Depreciation and Amortization	$ (312)
Iowa Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	5
Ownership Percent	100.00%
Land	$ 75
Building and Improvements	311
Total	386
Cost Capitalized Subsequent to Acquisition	66
Land	83
Building and Improvements	369
Gross Amount at which Carried at Close of Period, Total	452
Accumulated Depreciation and Amortization	$ (48)
Illinois Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	297
Ownership Percent	100.00%
Land	$ 5,296
Building and Improvements	21,303
Total	26,599
Cost Capitalized Subsequent to Acquisition	14,515
Land	7,570
Building and Improvements	33,544
Gross Amount at which Carried at Close of Period, Total	41,114
Accumulated Depreciation and Amortization	$ (4,342)
Indiana Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	90
Ownership Percent	100.00%
Land	$ 1,841
Building and Improvements	7,684
Total	9,525
Cost Capitalized Subsequent to Acquisition	386
Land	1,825
Building and Improvements	8,086
Gross Amount at which Carried at Close of Period, Total	9,911
Accumulated Depreciation and Amortization	$ (1,047)
Michigan Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	325
Ownership Percent	100.00%
Land	$ 15,319
Building and Improvements	61,313
Total	76,632
Cost Capitalized Subsequent to Acquisition	765
Land	14,251
Building and Improvements	63,146
Gross Amount at which Carried at Close of Period, Total	77,397
Accumulated Depreciation and Amortization	$ (8,173)
Mississippi Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	25
Ownership Percent	100.00%
Land	$ 381
Building and Improvements	1,509
Total	1,890
Cost Capitalized Subsequent to Acquisition	(124)
Land	325
Building and Improvements	1,441
Gross Amount at which Carried at Close of Period, Total	1,766
Accumulated Depreciation and Amortization	$ (186)
Missouri Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	18
Ownership Percent	100.00%
Land	$ 293
Building and Improvements	1,221
Total	1,514
Cost Capitalized Subsequent to Acquisition	3,248
Land	877
Building and Improvements	3,885
Gross Amount at which Carried at Close of Period, Total	4,762
Accumulated Depreciation and Amortization	$ (503)
North Carolina Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	74
Ownership Percent	100.00%
Land	$ 1,805
Building and Improvements	7,550
Total	9,355
Cost Capitalized Subsequent to Acquisition	872
Land	1,883
Building and Improvements	8,344
Gross Amount at which Carried at Close of Period, Total	10,227
Accumulated Depreciation and Amortization	$ (1,080)
Ohio Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	221
Ownership Percent	100.00%
Land	$ 5,410
Building and Improvements	22,011
Total	27,421
Cost Capitalized Subsequent to Acquisition	(117)
Land	5,027
Building and Improvements	22,277
Gross Amount at which Carried at Close of Period, Total	27,304
Accumulated Depreciation and Amortization	$ (2,883)
Oklahoma Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	128
Ownership Percent	100.00%
Land	$ 2,564
Building and Improvements	13,906
Total	16,470
Cost Capitalized Subsequent to Acquisition	3,227
Land	3,627
Building and Improvements	16,070
Gross Amount at which Carried at Close of Period, Total	19,697
Accumulated Depreciation and Amortization	$ (2,080)
South Carolina Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	22
Ownership Percent	100.00%
Land	$ 640
Building and Improvements	2,682
Total	3,322
Cost Capitalized Subsequent to Acquisition	289
Land	665
Building and Improvements	2,946
Gross Amount at which Carried at Close of Period, Total	3,611
Accumulated Depreciation and Amortization	$ (381)
Tennessee Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	298
Ownership Percent	100.00%
Land	$ 8,262
Building and Improvements	34,004
Total	42,266
Cost Capitalized Subsequent to Acquisition	(11,159)
Land	5,728
Building and Improvements	25,379
Gross Amount at which Carried at Close of Period, Total	31,107
Accumulated Depreciation and Amortization	$ (3,285)
Texas Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	340
Ownership Percent	100.00%
Land	$ 9,835
Building and Improvements	38,568
Total	48,403
Cost Capitalized Subsequent to Acquisition	3,849
Land	9,621
Building and Improvements	42,631
Gross Amount at which Carried at Close of Period, Total	52,252
Accumulated Depreciation and Amortization	$ (5,518)
Wisconsin Homes
Real Estate and Accumulated Depreciation [Line Items]
Number of Homes | property	17
Ownership Percent	100.00%
Land	$ 390
Building and Improvements	1,627
Total	2,017
Cost Capitalized Subsequent to Acquisition	93
Land	388
Building and Improvements	1,722
Gross Amount at which Carried at Close of Period, Total	2,110
Accumulated Depreciation and Amortization	(221)
Richardson Office, Q&C Hotel
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	34,000
1180 Raymond, The Marq, Oakland City Centre, Park Center
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 156,800