INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Mortgage Maturities) (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	May 31, 2018	Sep. 12, 2016
Annual maturities of mortgage debt
2025	$ 3,579,000
2026	25,088,000
2027	23,328,000
2028	31,875,000
2029	28,301,000
Thereafter	296,434,000
Total	408,605,000
Less: unamortized deferred financing costs	(2,399,000)
Secured Debt	$ 406,205,910	$ 408,660,292
Weighted average interest rate (as a percent)	4.34%
Effective interest rate (as a percent)	4.41%
Investment Properties
Annual maturities of mortgage debt
2025	$ 10,249,333
2026	259,155
2027	269,364
2028	132,465,040
Thereafter	29,589,000
Total	172,831,892
Less: unamortized deferred financing costs	(544,196)
Secured Debt	172,287,696	165,969,481	$ 166,090,968
Hamilton Essex 81
Annual maturities of mortgage debt
2025	10,000,000
Total	10,000,000
Less: unamortized deferred financing costs	(10,342)
Secured Debt	9,989,658	9,975,869	9,962,080
345 Franklin
Annual maturities of mortgage debt
2025	249,333
2026	259,155
2027	269,364
2028	7,465,040
Total	8,242,892
Less: unamortized deferred financing costs	(23,305)
Secured Debt	8,219,587	8,452,812	8,676,945
Hamilton Minuteman Apts
Annual maturities of mortgage debt
Thereafter	6,000,000
Total	6,000,000
Less: unamortized deferred financing costs	(54,898)				$ (123,000)
Secured Debt	5,945,102	5,936,919	5,928,736
Hamilton on Main Apts
Annual maturities of mortgage debt
Thereafter	23,589,000
Total	23,589,000
Less: unamortized deferred financing costs	(234,856)
Secured Debt	23,354,144	16,889,299	16,873,248
Dexter Park
Annual maturities of mortgage debt
2028	125,000,000
Total	125,000,000
Less: unamortized deferred financing costs	(220,795)
Secured Debt	$ 124,779,205	$ 124,714,582	$ 124,649,959	$ 82,000,000