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SALES OF PROPERTIES, PROPERTIES HELD-FOR-SALE AND IMPAIRMENT LOSSES - Additional disclosures (Details) - USD ($)					1 Months Ended	3 Months Ended		9 Months Ended
	Nov. 02, 2026	Oct. 28, 2026	Oct. 21, 2026	Oct. 20, 2026	Aug. 31, 2025	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
SALES OF PROPERTIES, PROPERTY HELD-FOR-SALE AND IMPAIRMENT LOSSES
Impairment loss						$ 1,422,000	$ 1,300,000	$ 1,564,000	$ 1,300,000
Gain (loss) on sale of unconsolidated joint venture properties							991,000		991,000
Real Estate in Savannah, GA \| Unconsolidated Joint Venture
SALES OF PROPERTIES, PROPERTY HELD-FOR-SALE AND IMPAIRMENT LOSSES
Net proceeds from the sale of unconsolidated joint venture					$ 4,614,000
Percentage of gain recognized by the Company					50.00%
Gain (loss) on sale of unconsolidated joint venture properties							991,000		991,000
Properties disposed of by sale \| Office Depot retail property, El Paso, Texas
SALES OF PROPERTIES, PROPERTY HELD-FOR-SALE AND IMPAIRMENT LOSSES
Gross Sales Price			$ 4,308,000
Properties disposed of by sale \| Office Depot retail property, El Paso, Texas \| Forecast
SALES OF PROPERTIES, PROPERTY HELD-FOR-SALE AND IMPAIRMENT LOSSES
Estimated Gain on Sale of Real Estate Net			$ 1,600,000
Properties disposed of by sale \| HD Supply & Archway Roofing industrial properties, Louisville, Kentucky
SALES OF PROPERTIES, PROPERTY HELD-FOR-SALE AND IMPAIRMENT LOSSES
Gross Sales Price				$ 9,163,000
Properties disposed of by sale \| HD Supply & Archway Roofing industrial properties, Louisville, Kentucky \| Forecast
SALES OF PROPERTIES, PROPERTY HELD-FOR-SALE AND IMPAIRMENT LOSSES
Estimated Gain on Sale of Real Estate Net				$ 4,280,000
Properties disposed of by sale \| Haverty's Retail Property, Austin, Texas
SALES OF PROPERTIES, PROPERTY HELD-FOR-SALE AND IMPAIRMENT LOSSES
Gross Sales Price	$ 6,550,000
Estimated Gain on Sale of Real Estate Net	$ 1,008,000
Properties disposed of by sale \| Haverty's Retail Property, Amarillo, Texas
SALES OF PROPERTIES, PROPERTY HELD-FOR-SALE AND IMPAIRMENT LOSSES
Gross Sales Price		$ 5,050,000
Estimated Gain on Sale of Real Estate Net		$ 1,760,000
Properties held-for-sale \| Office Depot retail property, El Paso, Texas
SALES OF PROPERTIES, PROPERTY HELD-FOR-SALE AND IMPAIRMENT LOSSES
Net book value						7,419,000		7,419,000
Properties held-for-sale \| TVI, Inc. retail property, Chicago, Illinois
SALES OF PROPERTIES, PROPERTY HELD-FOR-SALE AND IMPAIRMENT LOSSES
Impairment loss						$ 1,422,000		$ 1,564,000
Properties held-for-sale \| Property in Beachwood, Ohio
SALES OF PROPERTIES, PROPERTY HELD-FOR-SALE AND IMPAIRMENT LOSSES
Impairment loss							$ 1,300,000		$ 1,300,000