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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Income) (Details) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | May 31, 2018
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Rental Income |  |  |  |  |  |  |  |  | $ 73,892,393 | $ 67,560,662 | $ 62,175,592 |
Laundry and Sundry Income |  |  |  |  |  |  |  |  | 588,975 | 733,064 | 462,862 |
Total Revenues | $ 19,727,004 | $ 18,961,642 | $ 18,101,036 | $ 17,691,686 | $ 17,703,006 | $ 17,078,383 | $ 16,931,928 | $ 16,580,409 | 74,481,368 | 68,293,726 | 62,638,454 |
Expenses |  |  |  |  |  |  |  |  |  |  |  |
Administrative |  |  |  |  |  |  |  |  | 2,900,432 | 2,731,284 | 2,476,593 |
Depreciation and Amortization |  |  |  |  |  |  |  |  | 16,773,045 | 16,373,429 | 16,671,076 |
Expenses for construction, architectural services and supervision of capital projects |  |  |  |  |  |  |  |  | 7,748,910 | 7,324,692 | 6,471,250 |
Renting |  |  |  |  |  |  |  |  | 1,004,666 | 639,235 | 1,241,298 |
Repairs and Maintenance |  |  |  |  |  |  |  |  | 13,366,079 | 11,270,589 | 10,069,325 |
Taxes and Insurance |  |  |  |  |  |  |  |  | 9,954,214 | 9,149,837 | 8,942,469 |
Total Expenses |  |  |  |  |  |  |  |  | 55,666,521 | 50,205,580 | 48,395,954 |
Income Before Other Income (Expense) | 4,725,871 | 4,899,261 | 4,738,350 | 4,451,365 | 5,139,477 | 4,560,797 | 4,610,922 | 3,776,950 | 18,814,847 | 18,088,146 | 14,242,500 |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (15,723,733) | (15,045,477) | (13,629,463) |
Other income (expenses) |  |  |  |  |  |  |  |  |  | (874,517) | (2,745,979) |
Interest income |  |  |  |  |  |  |  |  | 4,486,603 | 1,055,338 | 87 |
Total Other Income (Expense) | (2,426,126) | (2,724,035) | (2,513,746) | (2,696,990) | (2,996,831) | (3,565,573) | (4,367,937) | (3,434,532) | (10,360,897) | (14,364,873) | (16,942,663) |
Net Income (Loss) | 2,299,745 | $ 2,175,226 | $ 2,224,604 | $ 1,754,375 | 2,142,646 | $ 995,224 | $ 242,985 | $ 342,418 | 8,453,950 | 3,723,273 | (2,700,163) |
Mortgage Notes Payable | 408,660,292 |  |  |  | 410,966,199 |  |  |  | 408,660,292 | 410,966,199 |  |
Investment Properties |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Rental Income |  |  |  |  |  |  |  |  | 25,556,720 | 23,550,304 | 20,837,208 |
Laundry and Sundry Income |  |  |  |  |  |  |  |  | 164,319 | 231,093 | 154,646 |
Total Revenues |  |  |  |  |  |  |  |  | 25,721,039 | 23,781,397 | 20,991,854 |
Expenses |  |  |  |  |  |  |  |  |  |  |  |
Administrative |  |  |  |  |  |  |  |  | 432,128 | 364,839 | 403,509 |
Depreciation and Amortization |  |  |  |  |  |  |  |  | 5,922,564 | 6,028,686 | 6,016,613 |
Management Fees |  |  |  |  |  |  |  |  | 699,067 | 662,035 | 575,162 |
Expenses for construction, architectural services and supervision of capital projects |  |  |  |  |  |  |  |  | 2,213,893 | 2,004,434 | 1,781,069 |
Renting |  |  |  |  |  |  |  |  | 282,165 | 210,499 | 711,979 |
Repairs and Maintenance |  |  |  |  |  |  |  |  | 2,951,720 | 2,801,051 | 2,849,104 |
Taxes and Insurance |  |  |  |  |  |  |  |  | 3,858,813 | 3,700,391 | 3,539,050 |
Total Expenses |  |  |  |  |  |  |  |  | 16,360,350 | 15,771,935 | 15,876,486 |
Income Before Other Income (Expense) |  |  |  |  |  |  |  |  | 9,360,689 | 8,009,462 | 5,115,368 |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (7,149,981) | (6,842,685) | (6,658,595) |
Other income (expenses) |  |  |  |  |  |  |  |  | (213,240) | (81,360) |  |
Interest income |  |  |  |  |  |  |  |  | 30,788 |  | 1,222 |
Total Other Income (Expense) |  |  |  |  |  |  |  |  | (7,332,433) | (6,924,045) | (6,657,373) |
Net Income (Loss) |  |  |  |  |  |  |  |  | 2,028,256 | 1,085,417 | (1,542,005) |
Proportionate share of net income (loss) |  |  |  |  |  |  |  |  | 876,233 | 499,783 | (567,308) |
Mortgage Notes Payable | 165,969,481 |  |  |  | 166,090,968 |  |  |  | 165,969,481 | 166,090,968 | 166,203,707 |
Investment Properties | NERA 50% |  |  |  |  |  |  |  |  |  |  |  |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) |  |  |  |  |  |  |  |  | 324,677 | 328,088 | 247,478 |
Investment Properties | NERA 40% |  |  |  |  |  |  |  |  |  |  |  |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) |  |  |  |  |  |  |  |  | 551,556 | 171,695 | (814,786) |
Hamilton Essex 81 |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Rental Income |  |  |  |  |  |  |  |  | 1,831,196 | 1,640,480 | 1,609,397 |
Laundry and Sundry Income |  |  |  |  |  |  |  |  | 3,691 | 17,652 | 12,761 |
Total Revenues |  |  |  |  |  |  |  |  | 1,834,887 | 1,658,132 | 1,622,158 |
Expenses |  |  |  |  |  |  |  |  |  |  |  |
Administrative |  |  |  |  |  |  |  |  | 20,455 | 19,543 | 76,338 |
Depreciation and Amortization |  |  |  |  |  |  |  |  | 470,253 | 478,538 | 479,512 |
Management Fees |  |  |  |  |  |  |  |  | 72,806 | 75,216 | 52,617 |
Expenses for construction, architectural services and supervision of capital projects |  |  |  |  |  |  |  |  | 284,173 | 229,528 | 168,160 |
Renting |  |  |  |  |  |  |  |  | 61,559 | 25,926 | 101,328 |
Repairs and Maintenance |  |  |  |  |  |  |  |  | 178,816 | 185,275 | 159,593 |
Taxes and Insurance |  |  |  |  |  |  |  |  | 281,346 | 266,024 | 261,145 |
Total Expenses |  |  |  |  |  |  |  |  | 1,369,408 | 1,280,050 | 1,298,693 |
Income Before Other Income (Expense) |  |  |  |  |  |  |  |  | 465,479 | 378,082 | 323,465 |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (752,933) | (412,329) | (246,339) |
Interest income |  |  |  |  |  |  |  |  | 6,830 |  |  |
Total Other Income (Expense) |  |  |  |  |  |  |  |  | (746,103) | (412,329) | (246,339) |
Net Income (Loss) |  |  |  |  |  |  |  |  | (280,624) | (34,247) | 77,126 |
Mortgage Notes Payable | 9,975,869 |  |  |  | 9,962,080 |  |  |  | 9,975,869 | 9,962,080 | 9,948,291 |
Hamilton Essex 81 | NERA 50% |  |  |  |  |  |  |  |  |  |  |  |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) |  |  |  |  |  |  |  |  | (140,312) | (17,124) | 38,563 |
Hamilton Essex Development |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Rental Income |  |  |  |  |  |  |  |  | 241,884 | 296,313 | 391,878 |
Total Revenues |  |  |  |  |  |  |  |  | 241,884 | 296,313 | 391,878 |
Expenses |  |  |  |  |  |  |  |  |  |  |  |
Administrative |  |  |  |  |  |  |  |  | 3,020 | 6,548 | 2,875 |
Depreciation and Amortization |  |  |  |  |  |  |  |  | 11,709 | 11,709 | 20,298 |
Management Fees |  |  |  |  |  |  |  |  | 10,489 | 11,468 | 12,922 |
Repairs and Maintenance |  |  |  |  |  |  |  |  |  | 3,180 | 520 |
Taxes and Insurance |  |  |  |  |  |  |  |  | 61,557 | 63,139 | 60,764 |
Total Expenses |  |  |  |  |  |  |  |  | 86,775 | 96,044 | 97,379 |
Income Before Other Income (Expense) |  |  |  |  |  |  |  |  | 155,109 | 200,269 | 294,499 |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 375 |  |  |
Total Other Income (Expense) |  |  |  |  |  |  |  |  | 375 |  |  |
Net Income (Loss) |  |  |  |  |  |  |  |  | 155,484 | 200,269 | 294,499 |
Hamilton Essex Development | NERA 50% |  |  |  |  |  |  |  |  |  |  |  |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) |  |  |  |  |  |  |  |  | 77,741 | 100,134 | 147,249 |
345 Franklin |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Rental Income |  |  |  |  |  |  |  |  | 1,709,429 | 1,516,329 | 1,360,472 |
Laundry and Sundry Income |  |  |  |  |  |  |  |  | 115 | 245 | 1,494 |
Total Revenues |  |  |  |  |  |  |  |  | 1,709,544 | 1,516,574 | 1,361,966 |
Expenses |  |  |  |  |  |  |  |  |  |  |  |
Administrative |  |  |  |  |  |  |  |  | 30,349 | 33,656 | 31,566 |
Depreciation and Amortization |  |  |  |  |  |  |  |  | 346,856 | 346,793 | 343,834 |
Management Fees |  |  |  |  |  |  |  |  | 67,116 | 59,715 | 54,178 |
Expenses for construction, architectural services and supervision of capital projects |  |  |  |  |  |  |  |  | 89,139 | 76,108 | 58,667 |
Renting |  |  |  |  |  |  |  |  | 52,686 | 32,332 | 54,672 |
Repairs and Maintenance |  |  |  |  |  |  |  |  | 150,845 | 184,057 | 129,548 |
Taxes and Insurance |  |  |  |  |  |  |  |  | 193,215 | 182,098 | 175,183 |
Total Expenses |  |  |  |  |  |  |  |  | 930,206 | 914,759 | 847,648 |
Income Before Other Income (Expense) |  |  |  |  |  |  |  |  | 779,338 | 601,815 | 514,318 |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (344,847) | (351,175) | (359,036) |
Interest income |  |  |  |  |  |  |  |  | 1,593 |  |  |
Total Other Income (Expense) |  |  |  |  |  |  |  |  | (343,254) | (351,175) | (359,036) |
Net Income (Loss) |  |  |  |  |  |  |  |  | 436,084 | 250,640 | 155,282 |
Mortgage Notes Payable | 8,452,812 |  |  |  | 8,676,945 |  |  |  | 8,452,812 | 8,676,945 | 8,892,331 |
345 Franklin | NERA 50% |  |  |  |  |  |  |  |  |  |  |  |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) |  |  |  |  |  |  |  |  | 218,041 | 125,319 | 77,641 |
Hamilton 1025 |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Rental Income |  |  |  |  |  |  |  |  | 98,734 | 102,802 | 98,135 |
Total Revenues |  |  |  |  |  |  |  |  | 98,734 | 102,802 | 98,135 |
Expenses |  |  |  |  |  |  |  |  |  |  |  |
Administrative |  |  |  |  |  |  |  |  | 3,300 | 2,793 | 2,812 |
Depreciation and Amortization |  |  |  |  |  |  |  |  | 3,264 | 3,264 | 3,264 |
Management Fees |  |  |  |  |  |  |  |  | 4,011 | 4,160 | 3,801 |
Expenses for construction, architectural services and supervision of capital projects |  |  |  |  |  |  |  |  | 807 | 1,344 | 334 |
Renting |  |  |  |  |  |  |  |  | 13 |  |  |
Taxes and Insurance |  |  |  |  |  |  |  |  | 17,165 | 18,513 | 19,467 |
Total Expenses |  |  |  |  |  |  |  |  | 28,560 | 30,074 | 29,678 |
Income Before Other Income (Expense) |  |  |  |  |  |  |  |  | 70,174 | 72,728 | 68,457 |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 161 |  |  |
Total Other Income (Expense) |  |  |  |  |  |  |  |  | 161 |  |  |
Net Income (Loss) |  |  |  |  |  |  |  |  | 70,335 | 72,729 | 68,458 |
Hamilton 1025 | NERA 50% |  |  |  |  |  |  |  |  |  |  |  |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) |  |  |  |  |  |  |  |  | 35,167 | 36,365 | 34,229 |
Hamilton Minuteman |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Rental Income |  |  |  |  |  |  |  |  | 1,334,398 | 1,212,854 | 1,139,865 |
Laundry and Sundry Income |  |  |  |  |  |  |  |  | (148) |  | 3,913 |
Total Revenues |  |  |  |  |  |  |  |  | 1,334,250 | 1,212,854 | 1,143,778 |
Expenses |  |  |  |  |  |  |  |  |  |  |  |
Administrative |  |  |  |  |  |  |  |  | 20,021 | 14,579 | 16,450 |
Depreciation and Amortization |  |  |  |  |  |  |  |  | 339,605 | 338,919 | 338,362 |
Management Fees |  |  |  |  |  |  |  |  | 53,347 | 48,548 | 45,541 |
Expenses for construction, architectural services and supervision of capital projects |  |  |  |  |  |  |  |  | 105,254 | 129,232 | 98,115 |
Renting |  |  |  |  |  |  |  |  | 5,801 | 9,873 | 4,419 |
Repairs and Maintenance |  |  |  |  |  |  |  |  | 94,262 | 106,689 | 120,626 |
Taxes and Insurance |  |  |  |  |  |  |  |  | 147,197 | 153,117 | 144,533 |
Total Expenses |  |  |  |  |  |  |  |  | 765,487 | 800,957 | 768,046 |
Income Before Other Income (Expense) |  |  |  |  |  |  |  |  | 568,763 | 411,897 | 375,732 |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (237,749) | (237,851) | (237,845) |
Interest income |  |  |  |  |  |  |  |  | 2,592 |  |  |
Total Other Income (Expense) |  |  |  |  |  |  |  |  | (235,157) | (237,851) | (237,845) |
Net Income (Loss) |  |  |  |  |  |  |  |  | 333,606 | 174,046 | 137,887 |
Mortgage Notes Payable | 5,936,919 |  |  |  | 5,928,736 |  |  |  | 5,936,919 | 5,928,736 | 5,920,552 |
Hamilton Minuteman | NERA 50% |  |  |  |  |  |  |  |  |  |  |  |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) |  |  |  |  |  |  |  |  | 166,802 | 87,023 | 68,944 |
Hamilton on Main Apts |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Rental Income |  |  |  |  |  |  |  |  | 3,879,734 | 3,644,802 | 3,370,478 |
Laundry and Sundry Income |  |  |  |  |  |  |  |  | 23,163 | 77,589 | 38,697 |
Total Revenues |  |  |  |  |  |  |  |  | 3,902,897 | 3,722,391 | 3,409,175 |
Expenses |  |  |  |  |  |  |  |  |  |  |  |
Administrative |  |  |  |  |  |  |  |  | 92,589 | 68,948 | 68,008 |
Depreciation and Amortization |  |  |  |  |  |  |  |  | 1,065,353 | 1,081,096 | 1,089,225 |
Management Fees |  |  |  |  |  |  |  |  | 152,943 | 146,115 | 131,221 |
Expenses for construction, architectural services and supervision of capital projects |  |  |  |  |  |  |  |  | 455,086 | 400,489 | 432,061 |
Renting |  |  |  |  |  |  |  |  | 54,856 | 51,327 | 90,842 |
Repairs and Maintenance |  |  |  |  |  |  |  |  | 625,687 | 626,909 | 624,475 |
Taxes and Insurance |  |  |  |  |  |  |  |  | 527,665 | 513,699 | 451,937 |
Total Expenses |  |  |  |  |  |  |  |  | 2,974,179 | 2,888,583 | 2,887,769 |
Income Before Other Income (Expense) |  |  |  |  |  |  |  |  | 928,718 | 833,808 | 521,406 |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (788,376) | (759,704) | (759,698) |
Other income (expenses) |  |  |  |  |  |  |  |  | (213,240) | (81,360) |  |
Interest income |  |  |  |  |  |  |  |  | 7,376 |  |  |
Total Other Income (Expense) |  |  |  |  |  |  |  |  | (994,240) | (841,064) | (759,698) |
Net Income (Loss) |  |  |  |  |  |  |  |  | (65,522) | (7,256) | (238,292) |
Mortgage Notes Payable | 16,889,299 |  |  |  | 16,873,248 |  |  |  | 16,889,299 | 16,873,248 | 16,857,197 |
Hamilton on Main Apts | NERA 50% |  |  |  |  |  |  |  |  |  |  |  |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) |  |  |  |  |  |  |  |  | (32,762) | (3,629) | (119,147) |
Dexter Park |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |
Rental Income |  |  |  |  |  |  |  |  | 16,461,345 | 15,136,724 | 12,866,983 |
Laundry and Sundry Income |  |  |  |  |  |  |  |  | 137,498 | 135,607 | 97,781 |
Total Revenues |  |  |  |  |  |  |  |  | 16,598,843 | 15,272,331 | 12,964,764 |
Expenses |  |  |  |  |  |  |  |  |  |  |  |
Administrative |  |  |  |  |  |  |  |  | 262,394 | 218,772 | 205,460 |
Depreciation and Amortization |  |  |  |  |  |  |  |  | 3,685,524 | 3,768,367 | 3,742,118 |
Management Fees |  |  |  |  |  |  |  |  | 338,355 | 316,813 | 274,882 |
Expenses for construction, architectural services and supervision of capital projects |  |  |  |  |  |  |  |  | 1,279,434 | 1,167,733 | 1,023,732 |
Renting |  |  |  |  |  |  |  |  | 107,250 | 91,041 | 460,718 |
Repairs and Maintenance |  |  |  |  |  |  |  |  | 1,902,110 | 1,694,941 | 1,814,342 |
Taxes and Insurance |  |  |  |  |  |  |  |  | 2,630,668 | 2,503,801 | 2,426,021 |
Total Expenses |  |  |  |  |  |  |  |  | 10,205,735 | 9,761,468 | 9,947,273 |
Income Before Other Income (Expense) |  |  |  |  |  |  |  |  | 6,393,108 | 5,510,863 | 3,017,491 |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | (5,026,076) | (5,081,626) | (5,055,677) |
Interest income |  |  |  |  |  |  |  |  | 11,861 |  | 1,222 |
Total Other Income (Expense) |  |  |  |  |  |  |  |  | (5,014,215) | (5,081,626) | (5,054,455) |
Net Income (Loss) |  |  |  |  |  |  |  |  | 1,378,893 | 429,237 | (2,036,964) |
Mortgage Notes Payable | $ 124,714,582 |  |  |  | $ 124,649,959 |  |  |  | 124,714,582 | 124,649,959 | 124,585,336 | $ 82,000,000
Dexter Park | NERA 40% |  |  |  |  |  |  |  |  |  |  |  |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) |  |  |  |  |  |  |  |  | $ 551,556 | $ 171,695 | $ (814,786) |
NERA 50% |  |  |  |  |  |  |  |  |  |  |  |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) | 50.00% |  |  |  | 50.00% |  |  |  | 50.00% | 50.00% | 50.00% |
NERA 40% |  |  |  |  |  |  |  |  |  |  |  |
Other Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) | 40.00% |  |  |  | 40.00% |  |  |  | 40.00% | 40.00% | 40.00% |

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