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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Mortgage Maturities) (Details) - USD ($) | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | May 31, 2018
--- | --- | --- | --- | ---
Annual maturities of mortgage debt |  |  |  |
Secured Debt | $ 370,481,390 | $ 283,444,533 |  |
Weighted average interest rate (as a percent) | 3.91% |  |  |
Effective interest rate (as a percent) | 3.97% |  |  |
Investment Properties |  |  |  |
Annual maturities of mortgage debt |  |  |  |
2022-current maturities | $ 222,044 |  |  |
2023 | 230,792 |  |  |
2024 | 17,139,883 |  |  |
2025 | 10,249,333 |  |  |
2026 | 259,156 |  |  |
Thereafter | 138,734,404 |  |  |
Total | 166,835,612 |  |  |
Less: unamortized deferred financing costs | (631,905) |  |  |
Secured Debt | 166,203,707 | 166,308,029 | $ 166,404,256 |
Hamilton Essex 81 |  |  |  |
Annual maturities of mortgage debt |  |  |  |
2025 | 10,000,000 |  |  |
Total | 10,000,000 |  |  |
Less: unamortized deferred financing costs | (51,709) |  |  |
Secured Debt | 9,948,291 | 9,934,502 | 9,920,713 |
345 Franklin |  |  |  |
Annual maturities of mortgage debt |  |  |  |
2022-current maturities | 222,044 |  |  |
2023 | 230,792 |  |  |
2024 | 239,883 |  |  |
2025 | 249,333 |  |  |
2026 | 259,156 |  |  |
Thereafter | 7,734,404 |  |  |
Total | 8,935,612 |  |  |
Less: unamortized deferred financing costs | (43,281) |  |  |
Secured Debt | 8,892,331 | 9,099,301 | 9,298,174 |
Hamilton Minuteman |  |  |  |
Annual maturities of mortgage debt |  |  |  |
Thereafter | 6,000,000 |  |  |
Total | 6,000,000 |  |  |
Less: unamortized deferred financing costs | (79,448) |  |  |
Secured Debt | 5,920,552 | 5,912,368 | 5,904,185 |
Hamilton on Main Apts |  |  |  |
Annual maturities of mortgage debt |  |  |  |
2024 | 16,900,000 |  |  |
Total | 16,900,000 |  |  |
Less: unamortized deferred financing costs | (42,803) |  |  |
Secured Debt | 16,857,197 | 16,841,145 | 16,825,094 |
Dexter Park |  |  |  |
Annual maturities of mortgage debt |  |  |  |
Thereafter | 125,000,000 |  |  |
Total | 125,000,000 |  |  |
Less: unamortized deferred financing costs | (414,664) |  |  |
Secured Debt | $ 124,585,336 | $ 124,520,713 | $ 124,456,090 | $ 82,000,000

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