XML 20 R55.htm IDEA: XBRL DOCUMENT
v2.4.0.8

INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Details 2) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2013 Hamilton Essex 81 item | Dec. 31, 2012 Hamilton Essex 81 item | Dec. 31, 2011 Hamilton Essex 81 item | Dec. 31, 2013 Hamilton Essex 81 NERA 50% | Dec. 31, 2012 Hamilton Essex 81 NERA 50% | Dec. 31, 2011 Hamilton Essex 81 NERA 50% | Dec. 31, 2013 Hamilton Essex 81 Apartments item | Dec. 31, 2012 Hamilton Essex 81 Apartments item | Dec. 31, 2011 Hamilton Essex 81 Apartments item | Dec. 31, 2013 Hamilton Essex 81 Commercial item | Dec. 31, 2012 Hamilton Essex 81 Commercial item | Dec. 31, 2011 Hamilton Essex 81 Commercial item | Dec. 31, 2013 Hamilton Essex Development item | Dec. 31, 2012 Hamilton Essex Development item | Dec. 31, 2011 Hamilton Essex Development item | Dec. 31, 2013 Hamilton Essex Development NERA 50% | Dec. 31, 2012 Hamilton Essex Development NERA 50% | Dec. 31, 2011 Hamilton Essex Development NERA 50% | Dec. 31, 2013 Hamilton Essex Development Commercial item | Dec. 31, 2012 Hamilton Essex Development Commercial item | Dec. 31, 2011 Hamilton Essex Development Commercial item | Dec. 31, 2013 345 Franklin item | Dec. 31, 2012 345 Franklin item | Dec. 31, 2011 345 Franklin item | Nov. 30, 2001 345 Franklin item | Dec. 31, 2013 345 Franklin NERA 50% | Dec. 31, 2012 345 Franklin NERA 50% | Dec. 31, 2011 345 Franklin NERA 50% | Dec. 31, 2013 345 Franklin Apartments item | Dec. 31, 2012 345 Franklin Apartments item | Dec. 31, 2011 345 Franklin Apartments item | Dec. 31, 2013 Hamilton 1025 item | Dec. 31, 2012 Hamilton 1025 item | Dec. 31, 2011 Hamilton 1025 item | Mar. 02, 2005 Hamilton 1025 item | Dec. 31, 2013 Hamilton 1025 NERA 50% | Dec. 31, 2012 Hamilton 1025 NERA 50% | Dec. 31, 2011 Hamilton 1025 NERA 50% | Dec. 31, 2013 Hamilton 1025 Apartments item | Dec. 31, 2012 Hamilton 1025 Apartments item | Dec. 31, 2011 Hamilton 1025 Apartments item | Dec. 31, 2013 Hamilton 1025 Commercial item | Dec. 31, 2012 Hamilton 1025 Commercial item | Dec. 31, 2011 Hamilton 1025 Commercial item | Dec. 31, 2013 Hamilton Bay Sales item | Dec. 31, 2012 Hamilton Bay Sales item | Dec. 31, 2011 Hamilton Bay Sales item | Dec. 31, 2013 Hamilton Bay Sales NERA 50% | Dec. 31, 2012 Hamilton Bay Sales NERA 50% | Dec. 31, 2011 Hamilton Bay Sales NERA 50% | Dec. 31, 2013 Hamilton Bay Sales Apartments item | Dec. 31, 2012 Hamilton Bay Sales Apartments item | Dec. 31, 2011 Hamilton Bay Sales Apartments item | Dec. 31, 2013 Hamilton Bay Apartments item | Dec. 31, 2012 Hamilton Bay Apartments item | Dec. 31, 2011 Hamilton Bay Apartments item | Apr. 30, 2008 Hamilton Bay Apartments item | Oct. 03, 2005 Hamilton Bay Apartments item | Dec. 31, 2013 Hamilton Bay Apartments NERA 50% | Dec. 31, 2012 Hamilton Bay Apartments NERA 50% | Dec. 31, 2011 Hamilton Bay Apartments NERA 50% | Dec. 31, 2013 Hamilton Bay Apartments Apartments item | Dec. 31, 2012 Hamilton Bay Apartments Apartments item | Dec. 31, 2011 Hamilton Bay Apartments Apartments item | Dec. 31, 2013 Hamilton Minuteman item | Dec. 31, 2012 Hamilton Minuteman item | Dec. 31, 2011 Hamilton Minuteman item | Sep. 30, 2004 Hamilton Minuteman item | Dec. 31, 2013 Hamilton Minuteman NERA 50% | Dec. 31, 2012 Hamilton Minuteman NERA 50% | Dec. 31, 2011 Hamilton Minuteman NERA 50% | Dec. 31, 2013 Hamilton Minuteman Apartments item | Dec. 31, 2012 Hamilton Minuteman Apartments item | Dec. 31, 2011 Hamilton Minuteman Apartments item | Dec. 31, 2013 Hamilton on Main item | Dec. 31, 2012 Hamilton on Main item | Dec. 31, 2011 Hamilton on Main item | May 31, 2008 Hamilton on Main item | Aug. 31, 2004 Hamilton on Main item | Dec. 31, 2013 Hamilton on Main NERA 50% | Dec. 31, 2012 Hamilton on Main NERA 50% | Dec. 31, 2011 Hamilton on Main NERA 50% | Dec. 31, 2013 Hamilton on Main Apartments item | Dec. 31, 2012 Hamilton on Main Apartments item | Dec. 31, 2011 Hamilton on Main Apartments item | Dec. 31, 2013 Dexter Park item | Dec. 31, 2012 Dexter Park item | Dec. 31, 2011 Dexter Park item | Oct. 28, 2009 Dexter Park item | Dec. 31, 2013 Dexter Park NERA 40% | Dec. 31, 2012 Dexter Park NERA 40% | Dec. 31, 2011 Dexter Park NERA 40% | Dec. 31, 2013 Dexter Park Apartments item | Dec. 31, 2012 Dexter Park Apartments item | Dec. 31, 2011 Dexter Park Apartments item | Dec. 31, 2013 Total item | Dec. 31, 2012 Total item | Dec. 31, 2011 Total item | Dec. 31, 2013 Total Apartments item | Dec. 31, 2012 Total Apartments item | Dec. 31, 2011 Total Apartments item | Dec. 31, 2013 Total Commercial item | Dec. 31, 2012 Total Commercial item | Dec. 31, 2011 Total Commercial item
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
ASSETS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rental Properties | $ 152,904,661 | $ 94,973,600 |  |  | $ 8,764,215 | $ 9,103,858 | $ 9,454,959 |  |  |  |  |  |  |  |  |  | $ 2,624,325 | $ 2,610,574 | $ 2,613,064 |  |  |  |  |  |  | $ 7,494,954 | $ 7,885,745 | $ 8,229,651 |  |  |  |  |  |  |  | $ 5,389,763 | $ 5,621,970 | $ 5,863,176 |  |  |  |  |  |  |  |  |  |  | $ 1,766,132 | $ 1,844,219 | $ 1,916,445 |  |  |  |  |  |  | $ 6,680,834 | $ 6,975,854 | $ 7,257,981 |  |  |  |  |  |  |  |  | $ 6,778,029 | $ 7,020,471 | $ 7,256,528 |  |  |  |  |  |  |  | $ 20,253,587 | $ 21,148,813 | $ 21,939,796 |  |  |  |  |  |  |  |  | $ 102,120,964 | $ 107,496,918 | $ 112,921,940 |  |  |  |  |  |  |  | $ 161,872,803 | $ 169,708,422 | $ 177,453,541 |  |  |  |  |  |
Cash & Cash Equivalents | 14,013,380 | 6,981,906 | 4,050,157 | 3,245,361 | 30,360 | 27,848 | 47,526 |  |  |  |  |  |  |  |  |  | 35,644 | 20,214 | 1,529 |  |  |  |  |  |  | 78,691 | 3,533 | 17,027 |  |  |  |  |  |  |  | 9,085 | 2,706 | 1,848 |  |  |  |  |  |  |  |  |  |  | 36,423 | 20,695 | 19,416 |  |  |  |  |  |  | 17,861 | 62,473 | 5,026 |  |  |  |  |  |  |  |  | 33,921 | 44,170 | 31,125 |  |  |  |  |  |  |  | 189,004 | 103,990 | 90,940 |  |  |  |  |  |  |  |  | 961,622 | 941,391 | 836,347 |  |  |  |  |  |  |  | 1,392,611 | 1,227,018 | 1,050,783 |  |  |  |  |  |
Rent Receivable | 496,149 | 475,083 |  |  | 31,426 | 44,005 | 73,459 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,512 | 600 |  |  |  |  |  |  |  |  | 7,970 | 7,283 | 15,682 |  |  |  |  |  |  |  |  |  |  | 1,251 | 2,200 |  |  |  |  |  |  |  | 2,766 | 2,686 | 2,512 |  |  |  |  |  |  |  |  |  | 2,626 | 7,457 |  |  |  |  |  |  |  | 5,697 | 11,108 | 8,593 |  |  |  |  |  |  |  |  | 91,701 | 35,250 | 86,722 |  |  |  |  |  |  |  | 142,324 | 105,758 | 194,425 |  |  |  |  |  |
Real Estate Tax Escrow | 375,560 | 449,652 |  |  | 101,395 | 49,793 | 98,610 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16,970 | 20,242 | 18,360 |  |  |  |  |  |  |  | 80,767 | 74,443 | 64,464 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 45,679 | 41,225 | 89,760 |  |  |  |  |  |  |  |  | 41,268 | 43,612 | 43,864 |  |  |  |  |  |  |  | 72,308 | 70,364 | 104,505 |  |  |  |  |  |  |  |  | 427,084 | 424,159 | 582,028 |  |  |  |  |  |  |  | 785,470 | 723,838 | 1,001,592 |  |  |  |  |  |
Prepaid Expenses & Other Assets | 3,895,189 | 3,073,890 |  |  | 77,141 | 61,895 | 59,508 |  |  |  |  |  |  |  |  |  | 555 | 505 | 493 |  |  |  |  |  |  | 36,979 | 75,222 | 54,276 |  |  |  |  |  |  |  | 44,737 | 33,659 | 88,524 |  |  |  |  |  |  |  |  |  |  | 101,507 | 127,530 | 167,811 |  |  |  |  |  |  | 31,435 | 14,345 | 95,190 |  |  |  |  |  |  |  |  | 50,721 | 48,715 | 54,023 |  |  |  |  |  |  |  | 322,667 | 154,396 | 180,899 |  |  |  |  |  |  |  |  | 1,529,591 | 1,367,274 | 1,216,214 |  |  |  |  |  |  |  | 2,195,335 | 1,883,541 | 1,916,937 |  |  |  |  |  |
Financing & Leasing Fees | 1,635,076 | 1,135,936 |  |  | 46,630 | 64,116 | 71,108 |  |  |  |  |  |  |  |  |  | 14,097 | 4,325 | 6,987 |  |  |  |  |  |  | 96,548 | 8,164 | 16,330 |  |  |  |  |  |  |  | 14,619 | 19,645 | 24,672 |  |  |  |  |  |  |  |  |  |  |  | 5,505 | 6,570 |  |  |  |  |  |  | 19,881 | 26,243 | 32,605 |  |  |  |  |  |  |  |  | 11,981 | 15,950 | 19,918 |  |  |  |  |  |  |  | 7,716 | 14,581 | 21,442 |  |  |  |  |  |  |  |  | 340,362 | 399,678 | 458,995 |  |  |  |  |  |  |  | 551,834 | 558,206 | 658,626 |  |  |  |  |  |
Total Assets | 185,345,157 | 121,538,490 |  |  | 9,051,167 | 9,351,515 | 9,805,169 |  |  |  |  |  |  |  |  |  | 2,674,621 | 2,635,617 | 2,622,073 |  |  |  |  |  |  | 7,725,654 | 7,993,505 | 8,335,644 |  |  |  |  |  |  |  | 5,546,941 | 5,759,706 | 6,058,364 |  |  |  |  |  |  |  |  |  |  | 1,905,314 | 2,000,148 | 2,110,241 |  |  |  |  |  |  | 6,798,456 | 7,122,825 | 7,483,074 |  |  |  |  |  |  |  |  | 6,915,919 | 7,175,545 | 7,412,916 |  |  |  |  |  |  |  | 20,850,980 | 21,503,252 | 22,346,175 |  |  |  |  |  |  |  |  | 105,471,324 | 110,664,670 | 116,102,247 |  |  |  |  |  |  |  | 166,940,376 | 174,206,783 | 182,275,903 |  |  |  |  |  |
LIABILITIES AND PARTNERS' CAPITAL |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage Notes Payable | 198,520,478 | 138,055,522 |  |  | 8,234,548 | 8,352,317 | 8,462,041 |  |  |  |  |  |  |  |  |  | 2,041,146 | 2,093,184 | 2,144,796 |  |  |  |  |  |  | 10,000,000 | 6,850,179 | 7,019,119 |  |  |  |  |  |  |  | 4,869,583 | 4,934,741 | 4,995,487 |  |  |  |  |  |  |  |  |  |  |  | 1,668,000 | 1,668,000 |  |  |  |  |  |  | 4,639,848 | 4,702,087 | 4,750,000 |  |  |  |  |  |  |  |  | 5,362,109 | 5,433,472 | 5,500,000 |  |  |  |  |  |  |  | 15,317,643 | 15,611,045 | 15,887,203 |  |  |  |  |  |  |  |  | 87,410,638 | 88,611,686 | 89,733,192 |  |  |  |  |  |  |  | 137,875,517 | 138,256,711 | 140,159,839 |  |  |  |  |  |
Accounts Payable and Accrued Expenses | 3,178,495 | 2,361,942 |  |  | 44,299 | 34,673 | 32,238 |  |  |  |  |  |  |  |  |  | 6,084 | 6,319 | 6,309 |  |  |  |  |  |  | 60,638 | 93,810 | 15,323 |  |  |  |  |  |  |  | 50,279 | 49,566 | 48,236 |  |  |  |  |  |  |  |  |  |  | 16,993 | 7,481 | 12,682 |  |  |  |  |  |  | 7,570 | 49,690 | 28,690 |  |  |  |  |  |  |  |  | 73,289 | 58,378 | 58,596 |  |  |  |  |  |  |  | 290,008 | 204,413 | 212,224 |  |  |  |  |  |  |  |  | 944,140 | 843,422 | 820,603 |  |  |  |  |  |  |  | 1,493,299 | 1,347,752 | 1,234,900 |  |  |  |  |  |
Advance Rental Payments and Security Deposits | 4,242,401 | 3,636,704 |  |  | 167,143 | 175,871 | 152,940 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 169,709 | 140,759 | 114,179 |  |  |  |  |  |  |  | 92,057 | 80,264 | 69,970 |  |  |  |  |  |  |  |  |  |  | 24,687 | 25,147 | 20,027 |  |  |  |  |  |  | 85,413 | 86,028 | 85,575 |  |  |  |  |  |  |  |  | 74,615 | 71,025 | 69,592 |  |  |  |  |  |  |  | 291,825 | 273,302 | 257,780 |  |  |  |  |  |  |  |  | 2,121,509 | 1,919,573 | 1,800,113 |  |  |  |  |  |  |  | 3,026,957 | 2,771,968 | 2,570,176 |  |  |  |  |  |
Total Liabilities | 207,193,720 | 144,054,168 |  |  | 8,445,990 | 8,562,861 | 8,647,219 |  |  |  |  |  |  |  |  |  | 2,047,230 | 2,099,503 | 2,151,105 |  |  |  |  |  |  | 10,230,346 | 7,084,748 | 7,148,621 |  |  |  |  |  |  |  | 5,011,919 | 5,064,570 | 5,113,694 |  |  |  |  |  |  |  |  |  |  | 41,680 | 1,700,628 | 1,700,709 |  |  |  |  |  |  | 4,732,831 | 4,837,806 | 4,864,265 |  |  |  |  |  |  |  |  | 5,510,013 | 5,562,875 | 5,628,188 |  |  |  |  |  |  |  | 15,899,477 | 16,088,760 | 16,357,207 |  |  |  |  |  |  |  |  | 90,476,287 | 91,374,681 | 92,353,908 |  |  |  |  |  |  |  | 142,395,772 | 142,376,432 | 143,964,915 |  |  |  |  |  |
Partners' Capital | (21,848,563) | (22,515,678) | (21,310,851) | (26,920,566) | 605,177 | 788,654 | 1,157,950 |  |  |  |  |  |  |  |  |  | 627,391 | 536,114 | 470,968 |  |  |  |  |  |  | (2,504,692) | 908,757 | 1,187,023 |  |  |  |  |  |  |  | 535,022 | 695,135 | 944,670 |  |  |  |  |  |  |  |  |  |  | 1,863,634 | 299,520 | 409,532 |  |  |  |  |  |  | 2,065,625 | 2,285,019 | 2,618,809 |  |  |  |  |  |  |  |  | 1,405,906 | 1,612,669 | 1,784,728 |  |  |  |  |  |  |  | 4,951,504 | 5,414,492 | 5,988,968 |  |  |  |  |  |  |  |  | 14,995,037 | 19,289,989 | 23,748,339 |  |  |  |  |  |  |  | 24,544,604 | 31,830,352 | 38,310,988 |  |  |  |  |  |
Total Liabilities and Partners' Capital | 185,345,157 | 121,538,490 |  |  | 9,051,167 | 9,351,515 | 9,805,169 |  |  |  |  |  |  |  |  |  | 2,674,621 | 2,635,617 | 2,622,073 |  |  |  |  |  |  | 7,725,654 | 7,993,505 | 8,335,644 |  |  |  |  |  |  |  | 5,546,941 | 5,759,706 | 6,058,364 |  |  |  |  |  |  |  |  |  |  | 1,905,314 | 2,000,148 | 2,110,241 |  |  |  |  |  |  | 6,798,456 | 7,122,825 | 7,483,074 |  |  |  |  |  |  |  |  | 6,915,919 | 7,175,545 | 7,412,916 |  |  |  |  |  |  |  | 20,850,980 | 21,503,252 | 22,346,175 |  |  |  |  |  |  |  |  | 105,471,324 | 110,664,670 | 116,102,247 |  |  |  |  |  |  |  | 166,940,376 | 174,206,783 | 182,275,903 |  |  |  |  |  |
Percentage of ownership interest |  |  |  |  |  |  |  | 50.00% | 50.00% | 50.00% |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% | 50.00% |  |  |  |  |  |  | 50.00% | 50.00% | 50.00% | 50.00% |  |  |  |  |  |  | 50.00% | 50.00% | 50.00% | 50.00% |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% | 50.00% |  |  |  |  |  |  |  | 50.00% | 50.00% | 50.00% | 50.00% |  |  |  |  |  |  | 50.00% | 50.00% | 50.00% | 50.00% |  |  |  |  |  |  |  | 50.00% | 50.00% | 50.00% | 50.00% |  |  |  |  |  |  | 40.00% | 40.00% | 40.00% | 40.00% |  |  |  |  |  |  |  |  |  |  |  |
Investment in Unconsolidated Joint Ventures | 12,025,142 | 13,986,173 |  |  |  |  |  | 302,589 | 394,327 | 578,975 |  |  |  |  |  |  |  |  |  | 313,695 | 268,057 | 235,484 |  |  |  |  |  |  | 1,533,000 |  | 454,379 | 593,512 |  |  |  |  |  |  | 2,352,000 | 267,511 | 347,568 | 472,335 |  |  |  |  |  |  |  |  |  | 931,817 | 149,760 | 204,766 |  |  |  |  |  |  |  | 2,500,000 | 1,032,812 | 1,142,510 | 1,309,404 |  |  |  |  |  |  | 5,075,000 | 702,953 | 806,335 | 892,364 |  |  |  |  |  |  |  | 8,000,000 | 2,475,752 | 2,707,246 | 2,994,484 |  |  |  |  |  |  | 15,925,000 | 5,998,015 | 7,715,996 | 9,499,335 |  |  |  | 12,025,144 | 13,986,177 | 16,780,660 |  |  |  |  |  |
Distribution and Loss in Excess of Investment in Unconsolidated Joint Venture | (1,252,346) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,252,346) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,252,346) |  |  |  |  |  |  |  |
Total Investment in Unconsolidated Joint Ventures (Net) | $ 10,772,798 | $ 13,986,177 | $ 16,780,660 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total units/ condominiums |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total |  |  |  |  | 49 | 49 | 49 |  |  |  | 48 | 48 | 48 | 1 | 1 | 1 | 1 | 1 | 1 |  |  |  | 1 | 1 | 1 | 40 | 40 | 40 | 40 |  |  |  | 40 | 40 | 40 | 176 | 176 | 176 | 176 |  |  |  | 175 | 175 | 175 | 1 | 1 | 1 | 120 | 120 | 120 |  |  |  | 120 | 120 | 120 | 48 | 48 | 48 | 20 | 168 |  |  |  | 48 | 48 | 48 | 42 | 42 | 42 | 42 |  |  |  | 42 | 42 | 42 | 148 | 148 | 148 |  | 280 |  |  |  | 148 | 148 | 148 | 409 | 409 | 409 | 409 |  |  |  | 409 | 409 | 409 | 1,033 | 1,033 | 1,033 | 1,030 | 1,030 | 1,030 | 3 | 3 | 3
Units to be retained |  |  |  |  | 49 | 49 | 49 |  |  |  |  |  |  |  |  |  | 1 | 1 | 1 |  |  |  |  |  |  | 40 | 40 | 40 |  |  |  |  |  |  |  | 49 | 49 | 49 | 49 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 48 | 48 | 48 |  | 48 |  |  |  |  |  |  | 42 | 42 | 42 |  |  |  |  |  |  |  | 148 | 148 | 148 |  |  |  |  |  |  |  |  | 409 | 409 | 409 |  |  |  |  |  |  |  | 786 | 786 | 786 |  |  |  |  |  |
Units to be sold |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 127 | 127 | 127 |  |  |  |  |  |  |  |  |  |  | 120 | 120 | 120 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 247 | 247 | 247 |  |  |  |  |  |
Units sold |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 127 | 127 | 127 | 127 |  |  |  |  |  |  |  |  |  | 105 | 105 | 105 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 137 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 232 | 232 | 232 |  |  |  |  |  |
Unsold units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15 | 15 | 15 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15 | 15 | 15 |  |  |  |  |  |

X
- Definition This element represents the deferred financing and leasing cost incurred by the entity during the reporting period. + References No definition available. + Details
Name: | nen_DeferredFinancingAndLeasingCostsNet
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the share of partners capital in distribution and loss in excess of investment in unconsolidated joint venture. + References No definition available. + Details
Name: | nen_DistributionAndLossInExcessOfInvestmentInUnconsolidatedJointVenture
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the number of units retained for long-term investment. + References No definition available. + Details
Name: | nen_NumberOfUnitsInRealEstatePropertyRetainedForLongTermInvestment
Namespace Prefix: | nen_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of units sold. + References No definition available. + Details
Name: | nen_NumberOfUnitsInRealEstatePropertySold
Namespace Prefix: | nen_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of units to be sold. + References No definition available. + Details
Name: | nen_NumberOfUnitsInRealEstatePropertyToBeSold
Namespace Prefix: | nen_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of units unsold by the entity. + References No definition available. + Details
Name: | nen_NumberOfUnitsInRealEstatePropertyUnsold
Namespace Prefix: | nen_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the net share of partners capital in unconsolidated joint venture investments. + References No definition available. + Details
Name: | nen_PartnersCapitalAccountShareInInvestmentsNet
Namespace Prefix: | nen_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | nen_UnitsInRealEstatePropertyAbstract
Namespace Prefix: | nen_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(1),(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 1, 5 -Article 9 + Details
Name: | us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.9) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.5) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_AccountsReceivableNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_AssetsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585 + Details
Name: | us-gaap_CashAndCashEquivalentsAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Refundable consideration, usually cash, held by the entity pending satisfactory completion of the entity's obligations or pending the closing of a contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15a) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_CustomerAdvancesAndDeposits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=16385135&loc=d3e33749-111570 + Details
Name: | us-gaap_EquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_EscrowDeposit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19-26) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_Liabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.32) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 25 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 32 -Article 5 + Details
Name: | us-gaap_LiabilitiesAndStockholdersEquity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_LiabilitiesAndStockholdersEquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of units in a real estate property owned as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfUnitsInRealEstateProperty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of ownership interest of different classes of partners in limited partnership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055 + Details
Name: | us-gaap_PartnersCapital
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets. + References No definition available. + Details
Name: | us-gaap_PrepaidExpenseAndOtherAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount of income producing properties held for rental. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_RentalProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_SecuredDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant