CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Revenue	$ 260,983,000	$ 261,309,000	$ 256,716,000
EXPENSES
Property operating expenses, excluding real estate taxes	76,338,000	77,053,000	80,070,000
Real estate taxes	26,906,000	28,759,000	28,567,000
Property management expense	9,128,000	9,353,000	9,895,000
Casualty loss	3,307,000	2,095,000	1,591,000
Depreciation and amortization	106,450,000	101,678,000	105,257,000
Impairment of real estate investments	0	5,218,000	0
General and administrative expenses	17,802,000	20,080,000	17,516,000
TOTAL EXPENSES	239,931,000	244,236,000	242,896,000
Gain (loss) on sale of real estate and other investments	(577,000)	71,244,000	41,000
Loss on litigation settlement	0	(3,864,000)	0
Operating income	20,475,000	84,453,000	13,861,000
Interest expense	(37,280,000)	(36,429,000)	(32,750,000)
Interest and other income	2,613,000	1,207,000	1,248,000
NET INCOME (LOSS)	(14,192,000)	49,231,000	(17,641,000)
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	3,635,000	(7,141,000)	4,299,000
Net income attributable to noncontrolling interests – consolidated real estate entities	(131,000)	(125,000)	(127,000)
Net income (loss) attributable to controlling interests	(11,328,000)	41,325,000	(14,109,000)
Dividends to preferred shareholders	(4,821,000)	(6,428,000)	(6,428,000)
Redemption of preferred shares	(3,511,000)	0	0
NET INCOME (LOSS) AVAILABLE TO COMMON SHAREHOLDERS	$ (19,660,000)	$ 34,897,000	$ (20,537,000)
NET INCOME (LOSS) PER COMMON SHARE – BASIC (in dollars per share)	$ (1.27)	$ 2.33	$ (1.35)
NET INCOME (LOSS) PER COMMON SHARE - DILUTED (in dollars per share)	$ (1.27)	$ 2.32	$ (1.35)
Weighted average shares - basic (in shares)	15,504	14,994	15,216
Weighted average shares - diluted (in shares)	15,504	17,118	15,216