INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Mortgage Maturities) (Details) - USD ($)	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	May 31, 2018	Sep. 12, 2016
Annual maturities of mortgage debt
2025	$ 3,399,000
2026	25,217,000
2027	3,216,000
2028	52,323,000
2029	28,556,000
Thereafter	296,630,000
Total	409,341,000
Less: unamortized deferred financing costs	(2,494,000)
Secured Debt	$ 406,846,877	$ 408,660,292
Weighted average interest rate (as a percent)	4.38%
Effective interest rate (as a percent)	4.44%
Investment Properties
Annual maturities of mortgage debt
2025	$ 10,246,936
2026	256,664
2027	266,775
2028	132,533,359
Thereafter	29,589,000
Total	172,892,734
Less: unamortized deferred financing costs	(573,583)
Secured Debt	172,319,151		$ 166,000,690
Hamilton Essex 81
Annual maturities of mortgage debt
2025	10,000,000
Total	10,000,000
Less: unamortized deferred financing costs	(13,789)
Secured Debt	9,986,211		9,972,422
345 Franklin
Annual maturities of mortgage debt
2025	246,936
2026	256,664
2027	266,775
2028	7,533,359
Total	8,303,734
Less: unamortized deferred financing costs	(24,969)
Secured Debt	8,278,765		8,509,683
Hamilton Minuteman
Annual maturities of mortgage debt
Thereafter	6,000,000
Total	6,000,000
Less: unamortized deferred financing costs	(56,944)				$ (123,000)
Secured Debt	5,943,056		5,934,873
Hamilton on Main Apts
Annual maturities of mortgage debt
Thereafter	23,589,000
Total	23,589,000
Less: unamortized deferred financing costs	(240,930)
Secured Debt	23,348,070		16,885,286
Dexter Park
Annual maturities of mortgage debt
2028	125,000,000
Total	125,000,000
Less: unamortized deferred financing costs	(236,951)
Secured Debt	$ 124,763,049		$ 124,698,426	$ 82,000,000