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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Mortgage Maturities) (Details) - USD ($)	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	May 31, 2018	Sep. 12, 2016
Annual maturities of mortgage debt
2026	$ 74,120,000
2027	3,226,000
2028	52,320,000
2029	28,566,000
2030	21,590,000
Thereafter	334,355,000
Total	514,177,000
Less: unamortized deferred financing costs	(2,930,000)
Mortgage Notes Payable	$ 511,247,097	$ 406,205,910
Weighted average interest rate (as a percent)	4.28%
Effective interest rate (as a percent)	4.35%
Investment Properties
Annual maturities of mortgage debt
2026	$ 256,664
2027	266,775
2028	132,533,359
Thereafter	41,803,000
Total	174,859,798
Less: unamortized deferred financing costs	(626,000)
Mortgage Notes Payable	174,233,798		$ 172,319,151
Hamilton Essex 81
Annual maturities of mortgage debt
Thereafter	12,214,000
Total	12,214,000
Less: unamortized deferred financing costs	(169,967)
Mortgage Notes Payable	12,044,033		9,986,211
345 Franklin
Annual maturities of mortgage debt
2026	256,664
2027	266,775
2028	7,533,359
Total	8,056,798
Less: unamortized deferred financing costs	(18,311)
Mortgage Notes Payable	8,038,487		8,278,765
Hamilton Minuteman Apts
Annual maturities of mortgage debt
Thereafter	6,000,000
Total	6,000,000
Less: unamortized deferred financing costs	(48,760)				$ (123,000)
Mortgage Notes Payable	5,951,240		5,943,056
Hamilton on Main Apts
Annual maturities of mortgage debt
Thereafter	23,589,000
Total	23,589,000
Less: unamortized deferred financing costs	(216,634)
Mortgage Notes Payable	23,372,366		23,348,070
Dexter Park
Annual maturities of mortgage debt
2028	125,000,000
Total	125,000,000
Less: unamortized deferred financing costs	(172,328)
Mortgage Notes Payable	$ 124,827,672		$ 124,763,049	$ 82,000,000