CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenue	$ 261,309,000	$ 256,716,000	$ 201,705,000
EXPENSES
Property operating expenses, excluding real estate taxes	77,053,000	80,070,000	57,753,000
Real estate taxes	28,759,000	28,567,000	24,104,000
Property management expense	9,353,000	9,895,000	8,752,000
Casualty loss	2,095,000	1,591,000	344,000
Depreciation and amortization	101,678,000	105,257,000	92,165,000
Impairment of real estate investments	5,218,000	0	0
General and administrative expenses	20,080,000	17,516,000	16,213,000
TOTAL EXPENSES	244,236,000	242,896,000	199,331,000
Gain on sale of real estate and other investments	71,244,000	41,000	27,518,000
Loss on litigation settlement	(3,864,000)	0	0
Operating income	84,453,000	13,861,000	29,892,000
Interest expense	(36,429,000)	(32,750,000)	(29,078,000)
Interest and other income (loss)	1,207,000	1,248,000	(2,915,000)
NET INCOME (LOSS)	49,231,000	(17,641,000)	(2,101,000)
Dividends to Series D preferred unitholders	(640,000)	(640,000)	(640,000)
Net (income) loss attributable to noncontrolling interests – Operating Partnership and Series E preferred units	(7,141,000)	4,299,000	2,806,000
Net income attributable to noncontrolling interests – consolidated real estate entities	(125,000)	(127,000)	(94,000)
Net income (loss) attributable to controlling interests	41,325,000	(14,109,000)	(29,000)
Dividends to preferred shareholders	(6,428,000)	(6,428,000)	(6,428,000)
NET INCOME (LOSS) AVAILABLE TO COMMON SHAREHOLDERS	$ 34,897,000	$ (20,537,000)	$ (6,457,000)
NET INCOME (LOSS) PER COMMON SHARE – BASIC (in dollars per share)	$ 2.33	$ (1.35)	$ (0.47)
NET INCOME (LOSS) PER COMMON SHARE - DILUTED (in dollars per share)	$ 2.32	$ (1.35)	$ (0.47)
Weighted average shares - basic (in shares)	14,994	15,216	13,803
Weighted average shares - diluted (in shares)	17,118	15,216	13,803