INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Details 2) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2014 Hamilton Essex 81 item	Mar. 31, 2013 Hamilton Essex 81 item	Mar. 31, 2014 Hamilton Essex 81 NERA 50%	Mar. 31, 2013 Hamilton Essex 81 NERA 50%	Mar. 31, 2014 Hamilton Essex 81 Apartments item	Mar. 31, 2013 Hamilton Essex 81 Apartments item	Mar. 31, 2014 Hamilton Essex 81 Commercial item	Mar. 31, 2013 Hamilton Essex 81 Commercial item	Mar. 31, 2014 Hamilton Essex Development item	Mar. 31, 2013 Hamilton Essex Development item	Mar. 31, 2014 Hamilton Essex Development NERA 50%	Mar. 31, 2013 Hamilton Essex Development NERA 50%	Mar. 31, 2014 Hamilton Essex Development Commercial item	Mar. 31, 2013 Hamilton Essex Development Commercial item	Mar. 31, 2014 345 Franklin item	Mar. 31, 2013 345 Franklin item	Nov. 30, 2001 345 Franklin item	Mar. 31, 2014 345 Franklin NERA 50%	Mar. 31, 2013 345 Franklin NERA 50%	Mar. 31, 2014 345 Franklin Apartments item	Mar. 31, 2013 345 Franklin Apartments item	Mar. 31, 2014 Hamilton 1025 item	Mar. 31, 2013 Hamilton 1025 item	Mar. 02, 2005 Hamilton 1025 item	Mar. 31, 2014 Hamilton 1025 NERA 50%	Mar. 31, 2013 Hamilton 1025 NERA 50%	Mar. 31, 2014 Hamilton 1025 Apartments item	Mar. 31, 2013 Hamilton 1025 Apartments item	Mar. 31, 2014 Hamilton 1025 Commercial item	Mar. 31, 2013 Hamilton 1025 Commercial item	May 06, 2014 Hamilton Bay Sales item	Mar. 31, 2014 Hamilton Bay Sales item	Mar. 31, 2013 Hamilton Bay Sales item	Mar. 31, 2014 Hamilton Bay Sales NERA 50%	Mar. 31, 2013 Hamilton Bay Sales NERA 50%	Mar. 31, 2014 Hamilton Bay Sales Apartments item	Mar. 31, 2013 Hamilton Bay Sales Apartments item	Mar. 31, 2014 Hamilton Bay Apartments item	Mar. 31, 2013 Hamilton Bay Apartments item	Oct. 03, 2005 Hamilton Bay Apartments item	Mar. 31, 2014 Hamilton Bay Apartments NERA 50%	Mar. 31, 2013 Hamilton Bay Apartments NERA 50%	Mar. 31, 2014 Hamilton Bay Apartments Apartments item	Mar. 31, 2013 Hamilton Bay Apartments Apartments item	Mar. 31, 2014 Hamilton Minuteman item	Mar. 31, 2013 Hamilton Minuteman item	Sep. 30, 2004 Hamilton Minuteman item	Mar. 31, 2014 Hamilton Minuteman NERA 50%	Mar. 31, 2013 Hamilton Minuteman NERA 50%	Mar. 31, 2014 Hamilton Minuteman Apartments item	Mar. 31, 2013 Hamilton Minuteman Apartments item	Mar. 31, 2014 Hamilton on Main item	Mar. 31, 2013 Hamilton on Main item	May 31, 2008 Hamilton on Main item	Aug. 31, 2004 Hamilton on Main item	Mar. 31, 2014 Hamilton on Main NERA 50%	Mar. 31, 2013 Hamilton on Main NERA 50%	Mar. 31, 2014 Hamilton on Main Apartments item	Mar. 31, 2013 Hamilton on Main Apartments item	Mar. 31, 2014 Dexter Park item	Mar. 31, 2013 Dexter Park item	Oct. 28, 2009 Dexter Park item	Mar. 31, 2014 Dexter Park NERA 40%	Mar. 31, 2013 Dexter Park NERA 40%	Mar. 31, 2014 Dexter Park Apartments item	Mar. 31, 2013 Dexter Park Apartments item	Mar. 31, 2014 Total item	Mar. 31, 2013 Total item	Mar. 31, 2014 Total Apartments item	Mar. 31, 2013 Total Apartments item	Mar. 31, 2014 Total Commercial item	Mar. 31, 2013 Total Commercial item
ASSETS
Rental Properties	$ 151,211,354	$ 152,904,661			$ 8,665,490	$ 9,015,547							$ 2,623,618	$ 2,609,952					$ 7,409,606	$ 7,788,886						$ 5,331,142	$ 5,563,140									$ 1,626,115	$ 1,824,421					$ 6,604,500	$ 6,900,646						$ 6,702,438	$ 6,965,331						$ 20,026,347	$ 20,884,885							$ 100,826,473	$ 106,099,815						$ 159,815,729	$ 167,652,623
Cash & Cash Equivalents	10,987,525	14,013,380	3,379,431	6,981,906	31,408	11,201							61,603	19,577					26,136	25,807						23,018	7,151									124,765	16,776					25,766	20,043						80,847	20,106						118	125,776							1,027,202	998,232						1,400,862	1,244,669
Rent Receivable	502,289	496,149			28,674	39,722													2,565	251						995	5,179									1,793	4,816					4,641	958						737	4,444						8,623	2,510							74,141	26,486						122,170	84,366
Real Estate Tax Escrow	289,702	375,560			101,256	49,793													40,681	45,617						68,445	74,350															37,283	47,332						35,466	39,197						43,577	72,665							339,330	392,816						666,038	721,770
Prepaid Expenses & Other Assets	3,945,880	3,895,189			71,795	70,830							222	202					32,078	102,039						37,561	36,541									206,859	135,511					35,603	16,689						42,400	48,597						712,377	202,059							1,607,358	1,429,338						2,746,253	2,041,806
Financing & Leasing Fees	1,580,506	1,635,076			42,259	59,745							11,982	2,703					94,884	21,122						13,363	18,389										4,239					18,291	24,652						10,989	14,958						6,001	12,865							325,532	384,849						523,300	543,522
Total Assets	180,149,597	185,345,157			8,940,881	9,246,838							2,697,426	2,632,434					7,605,950	7,983,722						5,474,523	5,704,750									1,959,533	1,985,763					6,726,084	7,010,320						6,872,876	7,092,633						20,797,043	21,300,760							104,200,037	109,331,536						165,274,352	172,288,756
LIABILITIES AND PARTNERS' CAPITAL
Mortgage Notes Payable	195,073,358	198,520,478			8,202,370	8,321,852							2,027,817	2,080,281					10,000,000	6,806,096						4,856,961	4,917,835										1,668,000					4,622,842	4,685,952						5,348,277	5,414,951						15,263,225	15,536,345							87,179,208	88,300,726						137,500,700	137,732,038
Accounts Payable and Accrued Expenses	2,672,024	3,178,495			52,518	39,583							6,373	6,604					81,538	139,062						27,653	50,520									19,186	24,838					10,896	25,608						64,247	70,988						172,902	200,055							708,297	868,483						1,143,611	1,425,741
Advance Rental Payments and Security Deposits	4,298,211	4,242,401			163,668	160,144													190,001	162,681						91,568	83,076									20,483	25,592					95,060	81,290						80,327	69,598						291,564	275,348							2,294,713	1,977,679						3,227,383	2,835,408
Total Liabilities	203,376,390	207,193,720			8,418,556	8,521,579							2,034,190	2,086,885					10,271,539	7,107,839						4,976,181	5,051,431									39,668	1,718,430					4,728,798	4,792,850						5,492,851	5,555,537						15,727,691	16,011,748							90,182,218	91,146,888						141,871,694	141,993,187
Partners' Capital	(23,226,793)	(21,848,563)	(22,988,838)	(22,515,677)	522,325	725,259							663,236	545,549					(2,665,589)	875,883						498,342	653,319									1,919,864	267,333					1,997,286	2,217,470						1,380,025	1,537,096						5,069,351	5,289,012							14,017,818	18,184,648						23,402,658	30,295,569
Total Liabilities and Partners' Capital	180,149,597	185,345,157			8,940,881	9,246,838							2,697,426	2,632,434					7,605,950	7,983,722						5,474,523	5,704,750									1,959,533	1,985,763					6,726,084	7,010,320						6,872,876	7,092,633						20,797,043	21,300,760							104,200,037	109,331,536						165,274,352	172,288,756
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%					40.00%	40.00%	40.00%
Investment in Unconsolidated Joint Ventures	11,632,341	12,025,142					261,162	362,630							331,618	272,775					1,533,000		437,942					2,352,000	249,171	326,660								959,932	133,667					2,500,000	998,643	1,108,735					5,075,000	690,012	768,548						8,000,000	2,534,676	2,644,506					15,925,000	5,607,127	7,273,859			11,632,342	13,329,320
Distribution and Loss in Excess of Investment in Unconsolidated Joint Venture	(1,332,797)	(1,252,346)																				(1,332,795)																																																	(1,332,795)
Total Investment in Unconsolidated Joint Ventures (Net)	$ 10,299,547		$ 13,329,320
Total units/ condominiums
Total					49	49			48	48	1	1	1	1			1	1	40	40	40			40	40	176	176	176			175	175	1	1		120	120			120	120	48	48	168			48	48	42	42	42			42	42	148	148		280			148	148	409	409	409			409	409	1,033	1,033	1,030	1,030	3	3
Units to be retained					49	49							1	1					40	40						49	49	49														48	48	48					42	42						148	148							409	409						786	786
Units to be sold																										127	127									120	120																																		247	247
Units sold																										127	127	127								106	105							120														137													233	232
Unsold units																																			14		15																																		14	15