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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Mortgage Maturities) (Details) - USD ($) | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | May 31, 2018 | Sep. 12, 2016
--- | --- | --- | --- | --- | ---
Annual maturities of mortgage debt |  |  |  |  |
2023-current maturities | $ 2,706,000 |  |  |  |
2024 | 2,861,000 |  |  |  |
2025 | 3,613,000 |  |  |  |
2026 | 25,081,000 |  |  |  |
2027 | 23,251,000 |  |  |  |
Thereafter | 356,613,000 |  |  |  |
Total | 414,125,000 |  |  |  |
Less: unamortized deferred financing costs | (3,159,000) |  |  |  |
Secured Debt | $ 410,966,199 | $ 370,481,390 |  |  |
Weighted average interest rate (as a percent) | 4.15% |  |  |  |
Effective interest rate (as a percent) | 4.21% |  |  |  |
Investment Properties |  |  |  |  |
Annual maturities of mortgage debt |  |  |  |  |
2023-current maturities | $ 230,791 |  |  |  |
2024 | 17,139,883 |  |  |  |
2025 | 10,249,333 |  |  |  |
2026 | 259,155 |  |  |  |
2027 | 269,364 |  |  |  |
Thereafter | 138,465,041 |  |  |  |
Total | 166,613,567 |  |  |  |
Less: unamortized deferred financing costs | (522,599) |  |  |  |
Secured Debt | 166,090,968 | 166,203,707 | $ 166,308,029 |  |
Hamilton Essex 81 |  |  |  |  |
Annual maturities of mortgage debt |  |  |  |  |
2025 | 10,000,000 |  |  |  |
Total | 10,000,000 |  |  |  |
Less: unamortized deferred financing costs | (37,920) |  |  |  |
Secured Debt | 9,962,080 | 9,948,291 | 9,934,502 |  |
345 Franklin |  |  |  |  |
Annual maturities of mortgage debt |  |  |  |  |
2023-current maturities | 230,791 |  |  |  |
2024 | 239,883 |  |  |  |
2025 | 249,333 |  |  |  |
2026 | 259,155 |  |  |  |
2027 | 269,364 |  |  |  |
Thereafter | 7,465,041 |  |  |  |
Total | 8,713,567 |  |  |  |
Less: unamortized deferred financing costs | (36,622) |  |  |  |
Secured Debt | 8,676,945 | 8,892,331 | 9,099,301 |  |
Hamilton Minuteman |  |  |  |  |
Annual maturities of mortgage debt |  |  |  |  |
Thereafter | 6,000,000 |  |  |  |
Total | 6,000,000 |  |  |  |
Less: unamortized deferred financing costs | (71,264) |  |  |  | $ (123,000)
Secured Debt | 5,928,736 | 5,920,552 | 5,912,368 |  |
Hamilton on Main Apts |  |  |  |  |
Annual maturities of mortgage debt |  |  |  |  |
2024 | 16,900,000 |  |  |  |
Total | 16,900,000 |  |  |  |
Less: unamortized deferred financing costs | (26,752) |  |  |  |
Secured Debt | 16,873,248 | 16,857,197 | 16,841,145 |  |
Dexter Park |  |  |  |  |
Annual maturities of mortgage debt |  |  |  |  |
Thereafter | 125,000,000 |  |  |  |
Total | 125,000,000 |  |  |  |
Less: unamortized deferred financing costs | (350,041) |  |  |  |
Secured Debt | $ 124,649,959 | $ 124,585,336 | $ 124,520,713 | $ 82,000,000 |

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