INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Mortgage Maturities) (Details) - USD ($)	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	May 31, 2018	Sep. 12, 2016
Annual maturities of mortgage debt
2026	$ 22,056,000
2027	6,601,000
2028	23,239,000
2029	58,851,000
2030	814,000
Thereafter	296,228,000
Total	407,789,000
Less: unamortized deferred financing costs	(2,305,000)
Mortgage Notes Payable	$ 405,484,379	$ 406,205,910
Weighted average interest rate (as a percent)	4.32%
Effective interest rate (as a percent)	4.39%
Investment Properties
Annual maturities of mortgage debt
2026	$ 10,251,753
2027	261,671
2028	271,979
2029	132,396,056
Thereafter	29,589,000
Total	172,770,459
Less: unamortized deferred financing costs	(515,670)
Mortgage Notes Payable	172,254,789		$ 165,937,703
Hamilton Essex 81
Annual maturities of mortgage debt
2026	10,000,000
Total	10,000,000
Less: unamortized deferred financing costs	(7,756)
Mortgage Notes Payable	9,992,244		9,979,316
345 Franklin
Annual maturities of mortgage debt
2026	251,753
2027	261,671
2028	271,979
2029	7,396,056
Total	8,181,459
Less: unamortized deferred financing costs	(21,640)
Mortgage Notes Payable	8,159,819		8,395,372
Hamilton Minuteman Apts
Annual maturities of mortgage debt
Thereafter	6,000,000
Total	6,000,000
Less: unamortized deferred financing costs	(52,852)				$ (123,000)
Mortgage Notes Payable	5,947,148		5,938,965
Hamilton on Main Apts
Annual maturities of mortgage debt
Thereafter	23,589,000
Total	23,589,000
Less: unamortized deferred financing costs	(228,782)
Mortgage Notes Payable	23,360,218		16,893,312
Dexter Park
Annual maturities of mortgage debt
2029	125,000,000
Total	125,000,000
Less: unamortized deferred financing costs	(204,640)
Mortgage Notes Payable	$ 124,795,360		$ 124,730,738	$ 82,000,000