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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Mortgage Maturities) (Details) - USD ($) | Jun. 30, 2022 | Dec. 31, 2021 | Jun. 30, 2021 | May 31, 2018 | Oct. 13, 2016
--- | --- | --- | --- | --- | ---
Annual maturities of mortgage debt |  |  |  |  |
2023-current maturities | $ 8,479,000 |  |  |  |
2024 | 2,719,000 |  |  |  |
2025 | 3,082,000 |  |  |  |
2026 | 21,870,000 |  |  |  |
2027 | 6,501,000 |  |  |  |
Thereafter | 372,559,000 |  |  |  |
Total | 415,210,000 |  |  |  |
Less: unamortized deferred financing costs | (3,310,000) |  |  |  |
Secured Debt | $ 411,900,371 | $ 370,481,390 |  |  |
Weighted average interest rate (as a percent) | 3.97% |  |  |  |
Effective interest rate (as a percent) | 4.03% |  |  |  |
Investment Properties |  |  |  |  |
Annual maturities of mortgage debt |  |  |  |  |
2023-current maturities | $ 226,376 |  |  |  |
2024 | 235,293 |  |  |  |
2025 | 17,144,563 |  |  |  |
2026 | 10,254,197 |  |  |  |
2027 | 264,211 |  |  |  |
Thereafter | 138,601,021 |  |  |  |
Total | 166,725,661 |  |  |  |
Less: unamortized deferred financing costs | (577,253) |  |  |  |
Secured Debt | 166,148,408 |  | $ 166,256,898 |  |
Hamilton Essex 81 |  |  |  |  |
Annual maturities of mortgage debt |  |  |  |  |
2026 | 10,000,000 |  |  |  |
Total | 10,000,000 |  |  |  |
Less: unamortized deferred financing costs | (44,814) |  |  |  |
Secured Debt | 9,955,186 |  | 9,941,396 |  |
345 Franklin |  |  |  |  |
Annual maturities of mortgage debt |  |  |  |  |
2023-current maturities | 226,376 |  |  |  |
2024 | 235,293 |  |  |  |
2025 | 244,563 |  |  |  |
2026 | 254,197 |  |  |  |
2027 | 264,211 |  |  |  |
Thereafter | 7,601,021 |  |  |  |
Total | 8,825,661 |  |  |  |
Less: unamortized deferred financing costs | (39,951) |  |  |  |
Secured Debt | 8,785,710 |  | 8,996,847 |  |
Hamilton Minuteman |  |  |  |  |
Annual maturities of mortgage debt |  |  |  |  |
Thereafter | 6,000,000 |  |  |  |
Total | 6,000,000 |  |  |  |
Less: unamortized deferred financing costs | (75,357) |  |  |  | $ (123,000)
Secured Debt | 5,924,643 |  | 5,916,460 |  |
Hamilton on Main Apts |  |  |  |  |
Annual maturities of mortgage debt |  |  |  |  |
2025 | 16,900,000 |  |  |  |
Total | 16,900,000 |  |  |  |
Less: unamortized deferred financing costs | (34,778) |  |  |  |
Secured Debt | 16,865,222 |  | 16,849,171 |  |
Dexter Park |  |  |  |  |
Annual maturities of mortgage debt |  |  |  |  |
Thereafter | 125,000,000 |  |  |  |
Total | 125,000,000 |  |  |  |
Less: unamortized deferred financing costs | (382,353) |  |  |  |
Secured Debt | $ 124,617,647 |  | $ 124,553,024 | $ 82,000,000 |

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