SUMMARY OF MARKETABLE SECURITIES (Details) - USD ($) shares in Thousands, $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Marketable Securities [Line Items]
Cost	$ 78,325	$ 128,055
Market Value	$ 42,178	$ 113,748
Cedar Realty Trust, Inc Series B [Member]
Marketable Securities [Line Items]
Interest Rate	7.25%	7.25%
Number of Shares	12	10
Cost	$ 257	$ 237
Market Value	$ 168	$ 264
Cedar Realty Trust Inc Series C [Member]
Marketable Securities [Line Items]
Interest Rate	6.50%	6.50%
Number of Shares	20	20
Cost	$ 494	$ 494
Market Value	$ 235	$ 505
Centerspace Series C [Member]
Marketable Securities [Line Items]
Interest Rate	6.625%	6.625%
Number of Shares	20	20
Cost	$ 500	$ 500
Market Value	$ 505	$ 522
Pennsylvania Real Estate Investment Trust Series B [Member]
Marketable Securities [Line Items]
Interest Rate	7.375%	7.375%
Number of Shares	40	40
Cost	$ 1,000	$ 1,000
Market Value	$ 97	$ 304
Pennsylvania Real Estate Investment Trust Series D [Member]
Marketable Securities [Line Items]
Interest Rate	6.875%	6.875%
Number of Shares	20	20
Cost	$ 498	$ 498
Market Value	38	145
Preferred Stock [Member]
Marketable Securities [Line Items]
Cost	2,749	2,729
Market Value	$ 1,043	$ 1,740
Alerislife Inc [Member]
Marketable Securities [Line Items]
Number of Shares	12
Cost	$ 45
Market Value	$ 6
Diversified Healthcare Trust [Member]
Marketable Securities [Line Items]
Number of Shares	171	171
Cost	$ 2,920	$ 2,920
Market Value	$ 111	$ 528
Franklin Street Properties Corporation [Member]
Marketable Securities [Line Items]
Number of Shares	220	220
Cost	$ 2,219	$ 2,219
Market Value	$ 601	$ 1,309
Industrial Logistics Properties Trust [Member]
Marketable Securities [Line Items]
Number of Shares	87	87
Cost	$ 1,729	$ 1,729
Market Value	$ 285	$ 2,186
Kimco Realty Corporation [Member]
Marketable Securities [Line Items]
Number of Shares	890	890
Cost	$ 16,677	$ 16,677
Market Value	$ 18,850	$ 21,939
Office Properties Income Trust [Member]
Marketable Securities [Line Items]
Number of Shares	562	562
Cost	$ 36,418	$ 36,418
Market Value	$ 7,496	$ 13,948
Orion Office REIT Inc [Member]
Marketable Securities [Line Items]
Number of Shares	18	18
Cost	$ 293	$ 293
Market Value	$ 158	$ 345
Pennsylvania Real Estate Investment Trust [Member]
Marketable Securities [Line Items]
Number of Shares	15	222
Cost	$ 2,316	$ 2,316
Market Value	$ 17	$ 226
Realty Income Corporation [Member]
Marketable Securities [Line Items]
Number of Shares	185	185
Cost	$ 10,910	$ 10,910
Market Value	$ 11,716	$ 13,224
Urstadt Biddle Properties Inc [Member]
Marketable Securities [Line Items]
Number of Shares	100	100
Cost	$ 2,049	$ 2,049
Market Value	1,895	2,130
Common Stock [Member]
Marketable Securities [Line Items]
Cost	75,576	125,326
Market Value	$ 41,135	$ 112,008
CBL and Associates Properties, Inc [Member]
Marketable Securities [Line Items]
Number of Shares		12
Cost		$ 18,230
Market Value		$ 361
Five Star Senior Living [Member]
Marketable Securities [Line Items]
Number of Shares		12
Cost		$ 45
Market Value		$ 34
Monmouth Real Estate Investment Corporation [Member]
Marketable Securities [Line Items]
Number of Shares		2,655
Cost		$ 25,031
Market Value		$ 55,778
Washington Prime Group [Member]
Marketable Securities [Line Items]
Number of Shares		3
Cost		$ 6,489
Market Value		$ 0