SEGMENTS - Revenues and Net Operating Income for Reportable Segments (Details)	3 Months Ended
	Mar. 31, 2025 USD ($) segment	Mar. 31, 2024 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment	1
Segment revenues and net operating income [Abstract]
Revenue	$ 67,093,000	$ 64,506,000
Property operating expenses
On-site compensation	6,872,000	6,796,000
Repairs and maintenance	3,189,000	3,380,000
Utilities	4,857,000	4,259,000
Administrative and marketing	1,559,000	1,631,000
Insurance	2,591,000	2,698,000
Real estate taxes	7,663,000	6,305,000
Net operating income	40,362,000	39,437,000
Property management expense	(2,433,000)	(2,330,000)
Casualty loss	(532,000)	(820,000)
Depreciation and amortization	(27,654,000)	(27,012,000)
General and administrative expenses	(4,997,000)	(4,623,000)
Loss on sale of real estate and other investments	0	(577,000)
Interest expense	(9,635,000)	(9,207,000)
Interest and other income	708,000	340,000
Net loss	(4,181,000)	(4,792,000)
Operating Segments | Multifamily
Segment revenues and net operating income [Abstract]
Revenue	66,244,000	63,339,000
Property operating expenses
On-site compensation	6,872,000	6,711,000
Repairs and maintenance	3,142,000	3,262,000
Utilities	4,810,000	4,161,000
Administrative and marketing	1,557,000	1,617,000
Insurance	2,570,000	2,657,000
Real estate taxes	7,440,000	6,152,000
Net operating income	39,853,000	38,779,000
All Other
Segment revenues and net operating income [Abstract]
Revenue	849,000	1,167,000
Property operating expenses
On-site compensation	0	85,000
Repairs and maintenance	47,000	118,000
Utilities	47,000	98,000
Administrative and marketing	2,000	14,000
Insurance	21,000	41,000
Real estate taxes	223,000	153,000
Net operating income	$ 509,000	$ 658,000