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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Income) (Details) - USD ($) | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Oct. 28, 2009 | Oct. 03, 2005 | Mar. 02, 2005 | Sep. 30, 2004 | Aug. 31, 2004 | Nov. 30, 2001
Revenues |  |  |  |  |  |  |  |  |
Rental income | $ 23,919,253 | $ 23,376,262 | $ 24,015,295 |  |  |  |  |  |
Laundry and Sundry Income | 163,958 | 162,523 | 170,727 |  |  |  |  |  |
Total Revenues | 24,083,211 | 23,538,785 | 24,186,022 |  |  |  |  |  |
Expenses |  |  |  |  |  |  |  |  |
Administrative | 360,792 | 316,569 | 336,837 |  |  |  |  |  |
Depreciation and amortization | 5,832,195 | 5,884,897 | 5,856,136 |  |  |  |  |  |
Management Fees | 652,200 | 660,006 | 692,250 |  |  |  |  |  |
Operating | 1,942,878 | 1,740,939 | 1,770,827 |  |  |  |  |  |
Renting | 645,890 | 401,263 | 331,500 |  |  |  |  |  |
Repairs and Maintenance | 2,666,148 | 2,959,112 | 2,994,069 |  |  |  |  |  |
Taxes and Insurance | 2,827,058 | 2,963,065 | 2,892,136 |  |  |  |  |  |
Total Expenses | 14,927,161 | 14,925,851 | 14,873,755 |  |  |  |  |  |
Income Before Other Income | 9,156,050 | 8,612,934 | 9,312,267 |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Interest Expense | (6,866,326) | (6,574,209) | (7,032,305) |  |  |  |  |  |
Interest Income |  |  | 10 |  |  |  |  |  |
Other Income (Expense) | (3,829,950) |  |  |  |  |  |  |  |
Gain on Sale of Real Estate | 4,410,692 | 6,141,265 | 1,661,425 |  |  |  |  |  |
Total Other Income (Loss) | (6,285,584) | (432,944) | (5,370,870) |  |  |  |  |  |
Net Income (Loss) | 2,870,466 | 8,179,990 | 3,941,397 |  |  |  |  |  |
Proportionate share of net income (loss) | 1,640,054 | 3,905,827 | 1,785,827 |  |  |  |  |  |
NERA 50% |  |  |  |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) | 2,459,336 | $ 3,169,159 | 1,046,345 |  |  |  |  |  |
Ownership interest (as a percent) |  | 50.00% |  |  |  |  |  |  |
NERA 40% |  |  |  |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) | (819,282) | $ 736,668 | 739,482 |  |  |  |  |  |
Ownership interest (as a percent) |  | 40.00% |  |  |  |  |  |  |
Hamilton Essex 81 |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |
Rental income | 1,654,459 | $ 1,404,006 | 1,534,910 |  |  |  |  |  |
Laundry and Sundry Income | 14,595 | 15,424 | 15,263 |  |  |  |  |  |
Total Revenues | 1,669,054 | 1,419,430 | 1,550,173 |  |  |  |  |  |
Expenses |  |  |  |  |  |  |  |  |
Administrative | 21,146 | 26,760 | 31,400 |  |  |  |  |  |
Depreciation and amortization | 475,646 | 456,728 | 452,186 |  |  |  |  |  |
Management Fees | 59,246 | 59,873 | 63,880 |  |  |  |  |  |
Operating | 78,979 | 70,847 | 103,761 |  |  |  |  |  |
Renting | 41,946 | 37,474 | 26,731 |  |  |  |  |  |
Repairs and Maintenance | 159,486 | 188,763 | 157,398 |  |  |  |  |  |
Taxes and Insurance | 247,729 | 239,875 | 227,148 |  |  |  |  |  |
Total Expenses | 1,084,178 | 1,080,320 | 1,062,504 |  |  |  |  |  |
Income Before Other Income | 584,876 | 339,110 | 487,669 |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Interest Expense | (440,676) | (349,303) | (289,041) |  |  |  |  |  |
Total Other Income (Loss) | (440,676) | (349,303) | (289,041) |  |  |  |  |  |
Net Income (Loss) | $ 144,200 | $ (10,193) | $ 198,628 |  |  |  |  |  |
Ownership interest (as a percent) | 50.00% | 50.00% | 50.00% |  |  |  |  |  |
Hamilton Essex 81 | NERA 50% |  |  |  |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) | $ 72,100 | $ (5,097) | $ 99,314 |  |  |  |  |  |
Hamilton Essex Development |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |
Rental income | 244,137 | 227,856 | 240,000 |  |  |  |  |  |
Total Revenues | 244,137 | 227,856 | 240,000 |  |  |  |  |  |
Expenses |  |  |  |  |  |  |  |  |
Administrative | 9,280 | 26,065 | 1,740 |  |  |  |  |  |
Depreciation and amortization | 8,706 | 2,830 | 2,830 |  |  |  |  |  |
Management Fees | 8,632 | 9,114 | 9,600 |  |  |  |  |  |
Renting | 37,353 |  |  |  |  |  |  |  |
Repairs and Maintenance | 8,643 | 3,668 | 3,150 |  |  |  |  |  |
Taxes and Insurance | 64,529 | 58,538 | 58,725 |  |  |  |  |  |
Total Expenses | 137,143 | 100,215 | 76,045 |  |  |  |  |  |
Income Before Other Income | 106,994 | 127,641 | 163,955 |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Net Income (Loss) | $ 106,994 | $ 127,641 | $ 163,955 |  |  |  |  |  |
Ownership interest (as a percent) | 50.00% | 50.00% | 50.00% |  |  |  |  |  |
Hamilton Essex Development | NERA 50% |  |  |  |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) | $ 53,497 | $ 63,821 | $ 81,978 |  |  |  |  |  |
345 Franklin |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |
Rental income | 1,567,718 | 1,473,098 | 1,471,455 |  |  |  |  |  |
Laundry and Sundry Income | 5,410 | 5,380 | 4,707 |  |  |  |  |  |
Total Revenues | 1,573,128 | 1,478,478 | 1,476,162 |  |  |  |  |  |
Expenses |  |  |  |  |  |  |  |  |
Administrative | 27,601 | 25,686 | 34,512 |  |  |  |  |  |
Depreciation and amortization | 347,547 | 348,502 | 348,169 |  |  |  |  |  |
Management Fees | 65,058 | 61,513 | 60,545 |  |  |  |  |  |
Operating | 76,512 | 70,599 | 72,280 |  |  |  |  |  |
Renting | 44,869 | 36,194 | 22,395 |  |  |  |  |  |
Repairs and Maintenance | 130,926 | 109,039 | 66,606 |  |  |  |  |  |
Taxes and Insurance | 147,217 | 138,503 | 130,867 |  |  |  |  |  |
Total Expenses | 839,730 | 790,036 | 735,374 |  |  |  |  |  |
Income Before Other Income | 733,398 | 688,442 | 740,788 |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Interest Expense | (384,824) | (393,193) | (397,726) |  |  |  |  |  |
Total Other Income (Loss) | (384,824) | (393,193) | (397,726) |  |  |  |  |  |
Net Income (Loss) | $ 348,574 | $ 295,249 | $ 343,062 |  |  |  |  |  |
Ownership interest (as a percent) | 50.00% | 50.00% | 50.00% |  |  |  |  |  | 50.00%
345 Franklin | NERA 50% |  |  |  |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) | $ 174,287 | $ 147,625 | $ 171,530 |  |  |  |  |  |
Hamilton 1025 |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |
Rental income | 112,785 | 352,888 | 798,710 |  |  |  |  |  |
Total Revenues | 112,785 | 352,888 | 798,710 |  |  |  |  |  |
Expenses |  |  |  |  |  |  |  |  |
Administrative | 5,939 | 4,142 | 9,636 |  |  |  |  |  |
Depreciation and amortization |  | 82,383 | 184,898 |  |  |  |  |  |
Management Fees | 4,503 | 13,056 | 30,493 |  |  |  |  |  |
Operating | 1,606 | 458 | 919 |  |  |  |  |  |
Renting | 108 | 392 | 1,789 |  |  |  |  |  |
Repairs and Maintenance | 94,680 | 227,346 | 296,423 |  |  |  |  |  |
Taxes and Insurance | 46,164 | 99,646 | 161,984 |  |  |  |  |  |
Total Expenses | 153,000 | 427,423 | 686,142 |  |  |  |  |  |
Income Before Other Income | (40,215) | (74,535) | 112,568 |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Interest Expense | (50) | (1,010) | (150,061) |  |  |  |  |  |
Interest Income |  |  | 10 |  |  |  |  |  |
Gain on Sale of Real Estate | 1,972,926 | 2,379,763 | 1,324,174 |  |  |  |  |  |
Total Other Income (Loss) | 1,972,876 | 2,378,753 | 1,174,123 |  |  |  |  |  |
Net Income (Loss) | $ 1,932,661 | $ 2,304,219 | $ 1,286,692 |  |  |  |  |  |
Ownership interest (as a percent) | 50.00% | 50.00% | 50.00% |  |  | 50.00% |  |  |
Hamilton 1025 | NERA 50% |  |  |  |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) | $ 966,331 | $ 1,152,109 | $ 643,347 |  |  |  |  |  |
Hamilton Bay Sales |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |
Rental income |  | 5,557 | 40,290 |  |  |  |  |  |
Total Revenues |  | 5,557 | 40,290 |  |  |  |  |  |
Expenses |  |  |  |  |  |  |  |  |
Administrative |  | 6,326 | 6,295 |  |  |  |  |  |
Depreciation and amortization |  | 81,655 | 4,921 |  |  |  |  |  |
Management Fees |  | 253 | 1,745 |  |  |  |  |  |
Operating |  | 38 | 315 |  |  |  |  |  |
Renting |  | 181 |  |  |  |  |  |  |
Repairs and Maintenance |  | 3,326 | 22,054 |  |  |  |  |  |
Taxes and Insurance |  | 1,850 | 9,236 |  |  |  |  |  |
Total Expenses |  | 93,629 | 44,566 |  |  |  |  |  |
Income Before Other Income |  | (88,072) | (4,276) |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Interest Expense |  | (2) | (71) |  |  |  |  |  |
Gain on Sale of Real Estate |  | 133,297 | 337,251 |  |  |  |  |  |
Total Other Income (Loss) |  | 133,295 | 337,180 |  |  |  |  |  |
Net Income (Loss) |  | 45,223 | $ 332,904 |  |  |  |  |  |
Ownership interest (as a percent) |  |  | 50.00% |  |  |  |  |  |
Hamilton Bay Sales | NERA 50% |  |  |  |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) |  | 22,612 | $ 166,451 |  |  |  |  |  |
Hamilton Bay Apts |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |
Rental income | 74,812 | 544,482 | 969,220 |  |  |  |  |  |
Total Revenues | 74,812 | 544,482 | 969,220 |  |  |  |  |  |
Expenses |  |  |  |  |  |  |  |  |
Administrative | 12,566 | 8,617 | 10,768 |  |  |  |  |  |
Depreciation and amortization | 30,000 | 181,152 | 298,503 |  |  |  |  |  |
Management Fees | 3,091 | 19,947 | 38,258 |  |  |  |  |  |
Operating | 1,435 | 4,239 | 2,358 |  |  |  |  |  |
Renting |  | 241 | 4,354 |  |  |  |  |  |
Repairs and Maintenance | 92,268 | 303,174 | 413,972 |  |  |  |  |  |
Taxes and Insurance | 36,094 | 140,904 | 164,667 |  |  |  |  |  |
Total Expenses | 175,454 | 658,274 | 932,880 |  |  |  |  |  |
Income Before Other Income | (100,642) | (113,792) | 36,340 |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Interest Expense | (101) | (41,957) | (261,440) |  |  |  |  |  |
Gain on Sale of Real Estate | 2,437,766 | 3,628,205 |  |  |  |  |  |  |
Total Other Income (Loss) | 2,437,665 | 3,586,248 | (261,440) |  |  |  |  |  |
Net Income (Loss) | $ 2,337,023 | $ 3,472,456 | $ (225,100) |  |  |  |  |  |
Ownership interest (as a percent) | 50.00% | 50.00% | 50.00% |  | 50.00% |  |  |  |
Hamilton Bay Apts | NERA 50% |  |  |  |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) | $ 1,168,512 | $ 1,736,228 | $ (112,549) |  |  |  |  |  |
Hamilton Minuteman |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |
Rental income | 1,077,105 | 1,024,570 | 992,980 |  |  |  |  |  |
Laundry and Sundry Income | (364) | 2,620 | 1,326 |  |  |  |  |  |
Total Revenues | 1,076,741 | 1,027,190 | 994,306 |  |  |  |  |  |
Expenses |  |  |  |  |  |  |  |  |
Administrative | 5,449 | 5,671 | 6,557 |  |  |  |  |  |
Depreciation and amortization | 355,463 | 349,910 | 341,645 |  |  |  |  |  |
Management Fees | 42,852 | 39,976 | 40,648 |  |  |  |  |  |
Operating | 93,795 | 87,284 | 96,690 |  |  |  |  |  |
Renting | 5,940 | 7,992 | 6,202 |  |  |  |  |  |
Repairs and Maintenance | 121,222 | 81,647 | 84,307 |  |  |  |  |  |
Taxes and Insurance | 127,505 | 127,947 | 121,365 |  |  |  |  |  |
Total Expenses | 752,226 | 700,427 | 697,414 |  |  |  |  |  |
Income Before Other Income | 324,515 | 326,763 | 296,892 |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Interest Expense | (237,707) | (237,293) | (286,628) |  |  |  |  |  |
Total Other Income (Loss) | (237,707) | (237,293) | (286,628) |  |  |  |  |  |
Net Income (Loss) | $ 86,808 | $ 89,470 | $ 10,263 |  |  |  |  |  |
Ownership interest (as a percent) | 50.00% | 50.00% | 50.00% |  |  |  | 50.00% |  |
Hamilton Minuteman | NERA 50% |  |  |  |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) | $ 43,404 | $ 44,735 | $ 5,132 |  |  |  |  |  |
Hamilton on Main Apts |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |
Rental income | 3,419,218 | 3,359,971 | 3,236,490 |  |  |  |  |  |
Laundry and Sundry Income | 38,080 | 37,968 | 40,720 |  |  |  |  |  |
Total Revenues | 3,457,298 | 3,397,939 | 3,277,210 |  |  |  |  |  |
Expenses |  |  |  |  |  |  |  |  |
Administrative | 56,339 | 33,688 | 48,753 |  |  |  |  |  |
Depreciation and amortization | 1,032,394 | 1,005,595 | 961,390 |  |  |  |  |  |
Management Fees | 131,500 | 133,138 | 129,134 |  |  |  |  |  |
Operating | 388,387 | 360,706 | 328,915 |  |  |  |  |  |
Renting | 25,947 | 36,767 | 19,354 |  |  |  |  |  |
Repairs and Maintenance | 663,314 | 606,570 | 558,988 |  |  |  |  |  |
Taxes and Insurance | 426,665 | 436,266 | 476,185 |  |  |  |  |  |
Total Expenses | 2,724,546 | 2,612,730 | 2,522,719 |  |  |  |  |  |
Income Before Other Income | 732,752 | 785,209 | 754,491 |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Interest Expense | (770,342) | (770,953) | (772,201) |  |  |  |  |  |
Total Other Income (Loss) | (770,342) | (770,953) | (772,201) |  |  |  |  |  |
Net Income (Loss) | $ (37,590) | $ 14,256 | $ (17,710) |  |  |  |  |  |
Ownership interest (as a percent) | 50.00% | 50.00% | 50.00% |  |  |  |  | 50.00% |
Hamilton on Main Apts | NERA 50% |  |  |  |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) | $ (18,795) | $ 7,127 | $ (8,855) |  |  |  |  |  |
Dexter Park |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |
Rental income | 15,769,019 | 14,983,834 | 14,731,240 |  |  |  |  |  |
Laundry and Sundry Income | 106,237 | 101,131 | 108,711 |  |  |  |  |  |
Total Revenues | 15,875,256 | 15,084,965 | 14,839,951 |  |  |  |  |  |
Expenses |  |  |  |  |  |  |  |  |
Administrative | 222,472 | 179,614 | 187,176 |  |  |  |  |  |
Depreciation and amortization | 3,582,439 | 3,376,142 | 3,261,594 |  |  |  |  |  |
Management Fees | 337,318 | 323,136 | 317,947 |  |  |  |  |  |
Operating | 1,302,164 | 1,146,768 | 1,165,589 |  |  |  |  |  |
Renting | 489,727 | 282,022 | 250,675 |  |  |  |  |  |
Repairs and Maintenance | 1,395,609 | 1,435,579 | 1,391,171 |  |  |  |  |  |
Taxes and Insurance | 1,731,155 | 1,719,536 | 1,541,959 |  |  |  |  |  |
Total Expenses | 9,060,884 | 8,462,797 | 8,116,111 |  |  |  |  |  |
Income Before Other Income | 6,814,372 | 6,622,168 | 6,723,840 |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Interest Expense | (5,032,626) | (4,780,498) | (4,875,137) |  |  |  |  |  |
Other Income (Expense) | (3,829,950) |  |  |  |  |  |  |  |
Total Other Income (Loss) | (8,862,576) | (4,780,498) | (4,875,137) |  |  |  |  |  |
Net Income (Loss) | $ (2,048,204) | $ 1,841,670 | $ 1,848,705 |  |  |  |  |  |
Ownership interest (as a percent) | 40.00% | 40.00% | 40.00% | 40.00% |  |  |  |  |
Dexter Park | NERA 40% |  |  |  |  |  |  |  |  |
Other Income (loss) |  |  |  |  |  |  |  |  |
Proportionate share of net income (loss) | $ (819,282) | $ 736,668 | $ 739,482 |  |  |  |  |  |

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