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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Balance Sheet) (Details) | Mar. 31, 2025 USD ($) property | Dec. 31, 2024 USD ($) | Mar. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | May 31, 2018 USD ($) | Oct. 28, 2009 item | Mar. 07, 2005 item | Mar. 02, 2005 item
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ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 282,997,706 | $ 278,516,649 |  |  |  |  |  |
Cash & Cash Equivalents | 30,863,737 | 17,615,940 |  |  |  |  |  |
Rent Receivable | 1,094,839 | 1,220,761 |  |  |  |  |  |
Real Estate Tax Escrow | 2,531,833 | 2,598,073 |  |  |  |  |  |
Prepaid Expenses & Other Assets | 8,284,247 | 8,553,360 |  |  |  |  |  |
Total Assets | 385,217,652 | 393,508,658 |  |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 405,484,379 | 406,205,910 |  |  |  |  |  |
Accounts Payable & Accrued Expense | 10,257,587 | 9,004,962 |  |  |  |  |  |
Advance Rental Pmts & Security Deposits | 10,206,881 | 10,199,807 |  |  |  |  |  |
Total Liabilities | 456,595,436 | 455,942,560 |  |  |  |  |  |
Partners' Capital | (71,377,784) | (62,433,902) | $ (69,041,100) | $ (65,354,385) |  |  |  |
Total Liabilities and Partners' Capital | 385,217,652 | 393,508,658 |  |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | (30,646,589) | $ (30,531,881) |  |  |  |  |  |
Investment Properties |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | 99,009,808 |  | 101,618,965 |  |  |  |  |
Cash & Cash Equivalents | 7,179,514 |  | 5,474,638 |  |  |  |  |
Rent Receivable | 447,087 |  | 394,572 |  |  |  |  |
Real Estate Tax Escrow | 172,803 |  | 348,766 |  |  |  |  |
Prepaid Expenses & Other Assets | 3,269,659 |  | 3,144,925 |  |  |  |  |
Total Assets | 110,078,871 |  | 110,981,866 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 172,254,789 |  | 165,937,703 |  |  |  |  |
Accounts Payable & Accrued Expense | 1,832,638 |  | 1,487,645 |  |  |  |  |
Advance Rental Pmts & Security Deposits | 4,873,333 |  | 4,602,710 |  |  |  |  |
Total Liabilities | 178,960,761 |  | 172,028,058 |  |  |  |  |
Partners' Capital | (68,881,890) |  | (61,046,192) |  |  |  |  |
Total Liabilities and Partners' Capital | 110,078,871 |  | 110,981,866 |  |  |  |  |
Investment in Unconsolidated Joint Ventures | 1,412,305 |  | 1,416,930 |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | (30,646,583) |  | (26,819,651) |  |  |  |  |
Total Investment in Unconsolidated Joint Ventures (Net) | $ (29,234,278) |  | $ (25,402,721) |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 690 |  | 690 |  |  |  |  |
Investment Properties | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 687 |  | 687 |  |  |  |  |
Investment Properties | Commercial |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 3 |  | 3 |  |  |  |  |
Hamilton Essex 81 |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 4,900,308 |  | $ 5,314,109 |  |  |  |  |
Cash & Cash Equivalents | 1,585,575 |  | 1,226,034 |  |  |  |  |
Rent Receivable | 199,976 |  | 170,515 |  |  |  |  |
Real Estate Tax Escrow | 69,677 |  | 81,278 |  |  |  |  |
Prepaid Expenses & Other Assets | 303,441 |  | 315,092 |  |  |  |  |
Total Assets | 7,058,977 |  | 7,107,028 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 9,992,244 |  | 9,979,316 |  |  |  |  |
Accounts Payable & Accrued Expense | 318,276 |  | 132,826 |  |  |  |  |
Advance Rental Pmts & Security Deposits | 384,491 |  | 348,654 |  |  |  |  |
Total Liabilities | 10,695,011 |  | 10,460,796 |  |  |  |  |
Partners' Capital | (3,636,034) |  | (3,353,768) |  |  |  |  |
Total Liabilities and Partners' Capital | $ 7,058,977 |  | $ 7,107,028 |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (1,818,017) |  | $ (1,676,884) |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 49 |  | 49 |  |  |  | 48 |
Hamilton Essex 81 | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 48 |  | 48 |  |  |  |  |
Hamilton Essex 81 | Commercial |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 1 |  | 1 |  |  |  |  |
Hamilton Essex Development |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 2,580,079 |  | $ 2,582,568 |  |  |  |  |
Cash & Cash Equivalents | 62,606 |  | 58,242 |  |  |  |  |
Rent Receivable | 68,310 |  | 77,243 |  |  |  |  |
Prepaid Expenses & Other Assets | 31,995 |  | 41,185 |  |  |  |  |
Total Assets | 2,742,990 |  | 2,759,238 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Accounts Payable & Accrued Expense | 5,000 |  | 1,521 |  |  |  |  |
Advance Rental Pmts & Security Deposits |  |  | 20,660 |  |  |  |  |
Total Liabilities | 5,000 |  | 22,181 |  |  |  |  |
Partners' Capital | 2,737,990 |  | 2,737,057 |  |  |  |  |
Total Liabilities and Partners' Capital | $ 2,742,990 |  | $ 2,759,238 |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |
Investment in Unconsolidated Joint Ventures | $ 1,368,995 |  | $ 1,368,530 |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 1 |  | 1 |  |  |  |  |
Hamilton Essex Development | Commercial |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 1 |  | 1 |  |  |  |  |
345 Franklin |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 4,083,706 |  | $ 4,395,208 |  |  |  |  |
Cash & Cash Equivalents | 196,009 |  | 118,521 |  |  |  |  |
Rent Receivable | 9,440 |  | 537 |  |  |  |  |
Real Estate Tax Escrow | 77,702 |  | 69,765 |  |  |  |  |
Prepaid Expenses & Other Assets | 68,612 |  | 74,126 |  |  |  |  |
Total Assets | 4,435,469 |  | 4,658,157 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 8,159,819 |  | 8,395,372 |  |  |  |  |
Accounts Payable & Accrued Expense | 111,283 |  | 112,431 |  |  |  |  |
Advance Rental Pmts & Security Deposits | 287,487 |  | 275,597 |  |  |  |  |
Total Liabilities | 8,558,589 |  | 8,783,400 |  |  |  |  |
Partners' Capital | (4,123,120) |  | (4,125,243) |  |  |  |  |
Total Liabilities and Partners' Capital | $ 4,435,469 |  | $ 4,658,157 |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (2,061,560) |  | $ (2,062,622) |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 40 |  | 40 |  |  |  |  |
345 Franklin | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 40 |  | 40 |  |  |  |  |
Hamilton 1025 |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 70,947 |  | $ 74,211 |  |  |  |  |
Cash & Cash Equivalents | 18,541 |  | 19,844 |  |  |  |  |
Rent Receivable | 827 |  | 3,715 |  |  |  |  |
Prepaid Expenses & Other Assets | 241 |  | 233 |  |  |  |  |
Total Assets | 90,556 |  | 98,003 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Accounts Payable & Accrued Expense | 3,936 |  | 1,201 |  |  |  |  |
Total Liabilities | 3,936 |  | 1,201 |  |  |  |  |
Partners' Capital | 86,620 |  | 96,802 |  |  |  |  |
Total Liabilities and Partners' Capital | $ 90,556 |  | $ 98,003 |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |
Investment in Unconsolidated Joint Ventures | $ 43,310 |  | $ 48,401 |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 1 |  | 1 |  |  |  |  | 176
Units to be retained | item |  |  |  |  |  |  |  | 49
Hamilton 1025 | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total |  |  | 0 |  |  |  |  |
Hamilton 1025 | Commercial |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 1 |  | 1 |  |  |  |  |
Hamilton Minuteman Apts |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 3,914,792 |  | $ 4,118,836 |  |  |  |  |
Cash & Cash Equivalents | 316,267 |  | 267,322 |  |  |  |  |
Rent Receivable | 11,821 |  | 254 |  |  |  |  |
Real Estate Tax Escrow | 25,424 |  | 29,481 |  |  |  |  |
Prepaid Expenses & Other Assets | 54,374 |  | 42,429 |  |  |  |  |
Total Assets | 4,322,678 |  | 4,458,322 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 5,947,148 |  | 5,938,965 |  |  |  |  |
Accounts Payable & Accrued Expense | 71,714 |  | 67,581 |  |  |  |  |
Advance Rental Pmts & Security Deposits | 176,548 |  | 174,690 |  |  |  |  |
Total Liabilities | 6,195,410 |  | 6,181,236 |  |  |  |  |
Partners' Capital | (1,872,732) |  | (1,722,914) |  |  |  |  |
Total Liabilities and Partners' Capital | $ 4,322,678 |  | $ 4,458,322 |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (936,366) |  | $ (861,457) |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 42 |  | 42 |  |  |  |  |
Hamilton Minuteman Apts | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 42 |  | 42 |  |  |  |  |
Hamilton on Main Apts |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 13,438,355 |  | $ 12,594,324 |  |  |  |  |
Cash & Cash Equivalents | 437,638 |  | 1,218,033 |  |  |  |  |
Rent Receivable | 47,523 |  | 20,744 |  |  |  |  |
Real Estate Tax Escrow |  |  | 168,242 |  |  |  |  |
Prepaid Expenses & Other Assets | 283,795 |  | 222,756 |  |  |  |  |
Total Assets | 14,207,311 |  | 14,224,099 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 23,360,218 |  | 16,893,312 |  |  |  |  |
Accounts Payable & Accrued Expense | 380,622 |  | 331,127 |  |  |  |  |
Advance Rental Pmts & Security Deposits | 474,411 |  | 474,036 |  |  |  |  |
Total Liabilities | 24,215,251 |  | 17,698,475 |  |  |  |  |
Partners' Capital | (10,007,940) |  | (3,474,376) |  |  |  |  |
Total Liabilities and Partners' Capital | $ 14,207,311 |  | $ 14,224,099 |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (5,003,970) |  | $ (1,737,188) |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 148 |  | 148 |  |  |  |  |
Hamilton on Main Apts | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 148 |  | 148 |  |  |  |  |
Dexter Park |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 70,021,621 |  | $ 72,539,709 |  |  |  |  |
Cash & Cash Equivalents | 4,562,878 |  | 2,566,642 |  |  |  |  |
Rent Receivable | 109,190 |  | 121,564 |  |  |  |  |
Prepaid Expenses & Other Assets | 2,527,201 |  | 2,449,104 |  |  |  |  |
Total Assets | 77,220,890 |  | 77,677,019 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 124,795,360 |  | 124,730,738 |  | $ 82,000,000 |  |  |
Accounts Payable & Accrued Expense | 941,807 |  | 840,958 |  |  |  |  |
Advance Rental Pmts & Security Deposits | 3,550,396 |  | 3,309,073 |  |  |  |  |
Total Liabilities | 129,287,564 |  | 128,880,769 |  |  |  |  |
Partners' Capital | (52,066,674) |  | (51,203,750) |  |  |  |  |
Total Liabilities and Partners' Capital | $ 77,220,890 |  | $ 77,677,019 |  |  |  |  |
Partners' Capital %-NERA | 40.00% |  | 40.00% |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (20,826,670) |  | $ (20,481,500) |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 409 |  | 409 |  |  | 409 |  |
Dexter Park | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 409 |  | 409 |  |  |  |  |

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