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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Balance Sheet) (Details) | Sep. 30, 2025 USD ($) property | Dec. 31, 2024 USD ($) | Sep. 30, 2024 USD ($) property | Dec. 31, 2023 USD ($) | May 31, 2018 USD ($) | Oct. 28, 2009 item | Mar. 07, 2005 item | Mar. 02, 2005 item
--- | --- | --- | --- | --- | --- | --- | --- | ---
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 458,030,396 | $ 278,516,649 |  |  |  |  |  |
Cash & Cash Equivalents | 13,374,205 | 17,615,940 |  |  |  |  |  |
Rent Receivable | 1,390,725 | 1,220,761 |  |  |  |  |  |
Real Estate Tax Escrow | 2,625,701 | 2,598,073 |  |  |  |  |  |
Prepaid Expenses & Other Assets | 13,021,919 | 8,553,360 |  |  |  |  |  |
Total Assets | 492,851,883 | 393,508,658 |  |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 511,247,097 | 406,205,910 |  |  |  |  |  |
Accounts Payable & Accrued Expense | 10,549,975 | 9,004,962 |  |  |  |  |  |
Advance Rental Pmts & Security Deposits | 11,492,865 | 10,199,807 |  |  |  |  |  |
Total Liabilities | 563,892,994 | 455,942,560 |  |  |  |  |  |
Partners' Capital | (71,041,111) | (62,433,902) | $ (65,460,606) | $ (65,354,385) |  |  |  |
Total Liabilities and Partners' Capital | 492,851,883 | 393,508,658 |  |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | (30,603,057) | $ (30,531,881) |  |  |  |  |  |
Investment Properties |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | 98,413,204 |  | 101,018,798 |  |  |  |  |
Cash & Cash Equivalents | 8,773,391 |  | 6,009,039 |  |  |  |  |
Rent Receivable | 421,257 |  | 354,741 |  |  |  |  |
Real Estate Tax Escrow | 186,282 |  | 179,598 |  |  |  |  |
Prepaid Expenses & Other Assets | 3,425,865 |  | 3,495,190 |  |  |  |  |
Total Assets | 111,219,999 |  | 111,057,366 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 174,233,798 |  | 172,319,151 |  |  |  |  |
Accounts Payable & Accrued Expense | 1,402,815 |  | 1,492,507 |  |  |  |  |
Advance Rental Pmts & Security Deposits | 4,368,528 |  | 4,499,433 |  |  |  |  |
Total Liabilities | 180,005,141 |  | 178,311,091 |  |  |  |  |
Partners' Capital | (68,785,142) |  | (67,253,725) |  |  |  |  |
Total Liabilities and Partners' Capital | 111,219,999 |  | 111,057,366 |  |  |  |  |
Investment in Unconsolidated Joint Ventures | 1,405,626 |  | 1,421,651 |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | (30,603,056) |  | (29,751,455) |  |  |  |  |
Total Investment in Unconsolidated Joint Ventures (Net) | $ (29,197,430) |  | $ (28,329,804) |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 690 |  | 690 |  |  |  |  |
Investment Properties | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 687 |  | 687 |  |  |  |  |
Investment Properties | Commercial |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 3 |  | 3 |  |  |  |  |
Hamilton Essex 81 |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 5,298,785 |  | $ 5,156,533 |  |  |  |  |
Cash & Cash Equivalents | 2,957,779 |  | 1,325,418 |  |  |  |  |
Rent Receivable | 153,153 |  | 189,026 |  |  |  |  |
Real Estate Tax Escrow | 70,289 |  | 78,201 |  |  |  |  |
Prepaid Expenses & Other Assets | 397,786 |  | 335,724 |  |  |  |  |
Total Assets | 8,877,792 |  | 7,084,902 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 12,044,033 |  | 9,986,211 |  |  |  |  |
Accounts Payable & Accrued Expense | 222,266 |  | 330,733 |  |  |  |  |
Advance Rental Pmts & Security Deposits | 349,841 |  | 366,000 |  |  |  |  |
Total Liabilities | 12,616,140 |  | 10,682,944 |  |  |  |  |
Partners' Capital | (3,738,348) |  | (3,598,042) |  |  |  |  |
Total Liabilities and Partners' Capital | $ 8,877,792 |  | $ 7,084,902 |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (1,869,174) |  | $ (1,799,020) |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 49 |  | 49 |  |  |  | 48 |
Hamilton Essex 81 | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 48 |  | 48 |  |  |  |  |
Hamilton Essex 81 | Commercial |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 1 |  | 1 |  |  |  |  |
Hamilton Essex Development |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 2,578,834 |  | $ 2,581,323 |  |  |  |  |
Cash & Cash Equivalents | 64,506 |  | 62,274 |  |  |  |  |
Rent Receivable | 62,810 |  | 74,223 |  |  |  |  |
Prepaid Expenses & Other Assets | 29,387 |  | 38,022 |  |  |  |  |
Total Assets | 2,735,537 |  | 2,755,842 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Accounts Payable & Accrued Expense | 7,000 |  | 3,000 |  |  |  |  |
Total Liabilities | 7,000 |  | 3,000 |  |  |  |  |
Partners' Capital | 2,728,537 |  | 2,752,842 |  |  |  |  |
Total Liabilities and Partners' Capital | $ 2,735,537 |  | $ 2,755,842 |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |
Investment in Unconsolidated Joint Ventures | $ 1,364,269 |  | $ 1,376,421 |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 1 |  | 1 |  |  |  |  |
Hamilton Essex Development | Commercial |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 1 |  | 1 |  |  |  |  |
345 Franklin |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 3,944,259 |  | $ 4,234,113 |  |  |  |  |
Cash & Cash Equivalents | 100,046 |  | 103,930 |  |  |  |  |
Rent Receivable | 10,492 |  | 2,057 |  |  |  |  |
Real Estate Tax Escrow | 79,926 |  | 71,866 |  |  |  |  |
Prepaid Expenses & Other Assets | 92,822 |  | 100,024 |  |  |  |  |
Total Assets | 4,227,545 |  | 4,511,990 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 8,038,487 |  | 8,278,765 |  |  |  |  |
Accounts Payable & Accrued Expense | 105,473 |  | 126,680 |  |  |  |  |
Advance Rental Pmts & Security Deposits | 280,627 |  | 262,862 |  |  |  |  |
Total Liabilities | 8,424,587 |  | 8,668,307 |  |  |  |  |
Partners' Capital | (4,197,042) |  | (4,156,317) |  |  |  |  |
Total Liabilities and Partners' Capital | $ 4,227,545 |  | $ 4,511,990 |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (2,098,521) |  | $ (2,078,158) |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 40 |  | 40 |  |  |  |  |
345 Franklin | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 40 |  | 40 |  |  |  |  |
Hamilton 1025 |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 69,315 |  | $ 72,579 |  |  |  |  |
Cash & Cash Equivalents | 14,268 |  | 17,234 |  |  |  |  |
Rent Receivable | 895 |  | 2,482 |  |  |  |  |
Prepaid Expenses & Other Assets | 939 |  | 769 |  |  |  |  |
Total Assets | 85,417 |  | 93,064 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Accounts Payable & Accrued Expense | 2,702 |  | 2,604 |  |  |  |  |
Total Liabilities | 2,702 |  | 2,604 |  |  |  |  |
Partners' Capital | 82,715 |  | 90,460 |  |  |  |  |
Total Liabilities and Partners' Capital | $ 85,417 |  | $ 93,064 |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |
Investment in Unconsolidated Joint Ventures | $ 41,358 |  | $ 45,230 |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 1 |  | 1 |  |  |  |  | 176
Units to be retained | item |  |  |  |  |  |  |  | 49
Hamilton 1025 | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property |  |  | 0 |  |  |  |  |
Hamilton 1025 | Commercial |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 1 |  | 1 |  |  |  |  |
Hamilton Minuteman Apts |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 3,781,556 |  | $ 3,977,260 |  |  |  |  |
Cash & Cash Equivalents | 618,244 |  | 81,885 |  |  |  |  |
Rent Receivable | 13,286 |  | 7,656 |  |  |  |  |
Real Estate Tax Escrow | 36,067 |  | 29,531 |  |  |  |  |
Prepaid Expenses & Other Assets | 78,424 |  | 67,481 |  |  |  |  |
Total Assets | 4,527,577 |  | 4,163,813 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 5,951,240 |  | 5,943,056 |  |  |  |  |
Accounts Payable & Accrued Expense | 70,503 |  | 62,619 |  |  |  |  |
Advance Rental Pmts & Security Deposits | 159,475 |  | 165,213 |  |  |  |  |
Total Liabilities | 6,181,218 |  | 6,170,888 |  |  |  |  |
Partners' Capital | (1,653,641) |  | (2,007,075) |  |  |  |  |
Total Liabilities and Partners' Capital | $ 4,527,577 |  | $ 4,163,813 |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (826,821) |  | $ (1,003,538) |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 42 |  | 42 |  |  |  |  |
Hamilton Minuteman Apts | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 42 |  | 42 |  |  |  |  |
Hamilton on Main Apts |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 13,372,001 |  | $ 13,619,389 |  |  |  |  |
Cash & Cash Equivalents | 287,451 |  | 2,796,390 |  |  |  |  |
Rent Receivable | 35,349 |  | 36,654 |  |  |  |  |
Prepaid Expenses & Other Assets | 319,765 |  | 280,877 |  |  |  |  |
Total Assets | 14,014,566 |  | 16,733,310 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 23,372,366 |  | 23,348,070 |  |  |  |  |
Accounts Payable & Accrued Expense | 222,068 |  | 257,732 |  |  |  |  |
Advance Rental Pmts & Security Deposits | 476,085 |  | 492,520 |  |  |  |  |
Total Liabilities | 24,070,519 |  | 24,098,322 |  |  |  |  |
Partners' Capital | (10,055,953) |  | (7,365,012) |  |  |  |  |
Total Liabilities and Partners' Capital | $ 14,014,566 |  | $ 16,733,310 |  |  |  |  |
Partners' Capital %-NERA | 50.00% |  | 50.00% |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (5,027,977) |  | $ (3,682,506) |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 148 |  | 148 |  |  |  |  |
Hamilton on Main Apts | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 148 |  | 148 |  |  |  |  |
Dexter Park |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |
Rental Properties | $ 69,368,454 |  | $ 71,377,601 |  |  |  |  |
Cash & Cash Equivalents | 4,731,097 |  | 1,621,908 |  |  |  |  |
Rent Receivable | 145,272 |  | 42,643 |  |  |  |  |
Prepaid Expenses & Other Assets | 2,506,742 |  | 2,672,293 |  |  |  |  |
Total Assets | 76,751,565 |  | 75,714,445 |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |
Mortgage Notes Payable | 124,827,672 |  | 124,763,049 |  | $ 82,000,000 |  |  |
Accounts Payable & Accrued Expense | 772,803 |  | 709,139 |  |  |  |  |
Advance Rental Pmts & Security Deposits | 3,102,500 |  | 3,212,838 |  |  |  |  |
Total Liabilities | 128,702,975 |  | 128,685,026 |  |  |  |  |
Partners' Capital | (51,951,410) |  | (52,970,581) |  |  |  |  |
Total Liabilities and Partners' Capital | $ 76,751,565 |  | $ 75,714,445 |  |  |  |  |
Partners' Capital %-NERA | 40.00% |  | 40.00% |  |  |  |  |
Distribution and Loss in Excess of investments in Unconsolidated Joint Ventures | $ (20,780,564) |  | $ (21,188,233) |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | 409 |  | 409 |  |  | 409 |  |
Dexter Park | Apartments |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |
Total | property | 409 |  | 409 |  |  |  |  |

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