INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Mortgage Maturities) (Details) - USD ($)	Dec. 31, 2025	Sep. 30, 2025	Dec. 31, 2024	Dec. 31, 2023	May 31, 2018	Sep. 12, 2016
Annual maturities of mortgage debt
2026	$ 6,615,000
2027	40,825,000
2028	31,885,000
2029	49,062,000
2030	847,000
Thereafter	401,797,000
Total	531,031,000
Less: unamortized deferred financing costs	(3,434,000)
Mortgage Notes Payable	$ 527,596,823		$ 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	$ 259,155
2027	269,364
2028	132,465,039
Thereafter	41,803,000
Total	174,796,558
Less: unamortized deferred financing costs	(595,810)
Mortgage Notes Payable	174,200,748		172,287,696	$ 165,969,481
Hamilton Essex 81
Annual maturities of mortgage debt
Thereafter	12,214,000
Total	12,214,000
Less: unamortized deferred financing costs	(165,718)	$ (170,000)
Mortgage Notes Payable	12,048,282		9,989,658	9,975,869
345 Franklin
Annual maturities of mortgage debt
2026	259,155
2027	269,364
2028	7,465,039
Total	7,993,558
Less: unamortized deferred financing costs	(16,646)
Mortgage Notes Payable	7,976,912		8,219,587	8,452,812
Hamilton Minuteman Apts
Annual maturities of mortgage debt
Thereafter	6,000,000
Total	6,000,000
Less: unamortized deferred financing costs	(46,714)					$ (123,000)
Mortgage Notes Payable	5,953,286		5,945,102	5,936,919
Hamilton on Main Apts
Annual maturities of mortgage debt
Thereafter	23,589,000
Total	23,589,000
Less: unamortized deferred financing costs	(210,560)
Mortgage Notes Payable	23,378,440		23,354,144	16,889,299
Dexter Park
Annual maturities of mortgage debt
2028	125,000,000
Total	125,000,000
Less: unamortized deferred financing costs	(156,172)
Mortgage Notes Payable	$ 124,843,828		$ 124,779,205	$ 124,714,582	$ 82,000,000