INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Details 3) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended			3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Hamilton Essex 81	Sep. 30, 2012 Hamilton Essex 81	Sep. 30, 2013 Hamilton Essex 81	Sep. 30, 2012 Hamilton Essex 81	Sep. 30, 2013 Hamilton Essex 81 NERA 50%	Sep. 30, 2012 Hamilton Essex 81 NERA 50%	Sep. 30, 2013 Hamilton Essex 81 NERA 50%	Sep. 30, 2012 Hamilton Essex 81 NERA 50%	Sep. 30, 2013 Hamilton Essex Development	Sep. 30, 2012 Hamilton Essex Development	Sep. 30, 2013 Hamilton Essex Development	Sep. 30, 2012 Hamilton Essex Development	Sep. 30, 2013 Hamilton Essex Development NERA 50%	Sep. 30, 2012 Hamilton Essex Development NERA 50%	Sep. 30, 2013 Hamilton Essex Development NERA 50%	Sep. 30, 2012 Hamilton Essex Development NERA 50%	Sep. 30, 2013 345 Franklin	Sep. 30, 2012 345 Franklin	Sep. 30, 2013 345 Franklin	Sep. 30, 2012 345 Franklin	Nov. 30, 2001 345 Franklin	Sep. 30, 2013 345 Franklin NERA 50%	Sep. 30, 2012 345 Franklin NERA 50%	Sep. 30, 2013 345 Franklin NERA 50%	Sep. 30, 2012 345 Franklin NERA 50%	Sep. 30, 2013 Hamilton 1025	Sep. 30, 2012 Hamilton 1025	Sep. 30, 2013 Hamilton 1025	Sep. 30, 2012 Hamilton 1025	Mar. 02, 2005 Hamilton 1025	Sep. 30, 2013 Hamilton 1025 NERA 50%	Sep. 30, 2012 Hamilton 1025 NERA 50%	Sep. 30, 2013 Hamilton 1025 NERA 50%	Sep. 30, 2012 Hamilton 1025 NERA 50%	Sep. 30, 2013 Hamilton Bay Apartments	Sep. 30, 2012 Hamilton Bay Apartments	Sep. 30, 2013 Hamilton Bay Apartments	Sep. 30, 2012 Hamilton Bay Apartments	Oct. 03, 2005 Hamilton Bay Apartments	Sep. 30, 2013 Hamilton Bay Apartments NERA 50%	Sep. 30, 2012 Hamilton Bay Apartments NERA 50%	Sep. 30, 2013 Hamilton Bay Apartments NERA 50%	Sep. 30, 2012 Hamilton Bay Apartments NERA 50%	Sep. 30, 2013 Hamilton Bay Sales	Sep. 30, 2012 Hamilton Bay Sales	Sep. 30, 2013 Hamilton Bay Sales	Sep. 30, 2012 Hamilton Bay Sales	Sep. 30, 2013 Hamilton Bay Sales NERA 50%	Sep. 30, 2012 Hamilton Bay Sales NERA 50%	Sep. 30, 2013 Hamilton Bay Sales NERA 50%	Sep. 30, 2012 Hamilton Bay Sales NERA 50%	Sep. 30, 2013 Hamilton Minuteman	Sep. 30, 2012 Hamilton Minuteman	Sep. 30, 2013 Hamilton Minuteman	Sep. 30, 2012 Hamilton Minuteman	Sep. 30, 2004 Hamilton Minuteman	Sep. 30, 2013 Hamilton Minuteman NERA 50%	Sep. 30, 2012 Hamilton Minuteman NERA 50%	Sep. 30, 2013 Hamilton Minuteman NERA 50%	Sep. 30, 2012 Hamilton Minuteman NERA 50%	Sep. 30, 2013 Hamilton on Main	Sep. 30, 2012 Hamilton on Main	Sep. 30, 2013 Hamilton on Main	Sep. 30, 2012 Hamilton on Main	Aug. 31, 2004 Hamilton on Main	Sep. 30, 2013 Hamilton on Main NERA 50%	Sep. 30, 2012 Hamilton on Main NERA 50%	Sep. 30, 2013 Hamilton on Main NERA 50%	Sep. 30, 2012 Hamilton on Main NERA 50%	Sep. 30, 2013 Dexter Park	Sep. 30, 2012 Dexter Park	Sep. 30, 2013 Dexter Park	Sep. 30, 2012 Dexter Park	Oct. 28, 2009 Dexter Park	Sep. 30, 2013 Dexter Park NERA 40%	Sep. 30, 2012 Dexter Park NERA 40%	Sep. 30, 2013 Dexter Park NERA 40%	Sep. 30, 2012 Dexter Park NERA 40%	Sep. 30, 2013 Total	Sep. 30, 2012 Total	Sep. 30, 2013 Total	Sep. 30, 2012 Total	Sep. 30, 2013 Total NERA 50%	Sep. 30, 2012 Total NERA 50%	Sep. 30, 2013 Total NERA 50%	Sep. 30, 2012 Total NERA 50%	Sep. 30, 2013 Total NERA 40%	Sep. 30, 2012 Total NERA 40%	Sep. 30, 2013 Total NERA 40%	Sep. 30, 2012 Total NERA 40%
Revenues
Rental income	$ 9,859,135	$ 8,666,844	$ 27,687,903	$ 25,902,587	$ 343,035	$ 311,281	$ 1,006,954	$ 937,284					$ 71,809	$ 72,046	$ 215,601	$ 216,137					$ 315,594	$ 295,031	$ 931,629	$ 873,734						$ 224,602	$ 218,064	$ 666,484	$ 639,791						$ 235,198	$ 223,301	$ 676,641	$ 659,463						$ 68,189	$ 61,862	$ 189,661	$ 173,054					$ 205,420	$ 204,535	$ 638,208	$ 603,212						$ 693,187	$ 656,122	$ 2,046,366	$ 1,953,493						$ 3,155,855	$ 2,993,242	$ 9,487,525	$ 9,056,079						$ 5,312,880	$ 5,035,486	$ 15,859,069	$ 15,112,247
Laundry and sundry income	108,617	92,182	302,305	281,276	3,146	3,415	12,144	10,488													1,550	600	3,483	1,788																																	175	675	666						10,109	3,752	27,391	13,732						24,417	31,384	70,846	75,239						39,222	39,327	114,538	101,913
Total Revenues	9,967,752	8,759,026	27,990,208	26,183,863	346,181	314,697	1,019,097	947,772					71,809	72,046	215,601	216,137					317,144	295,631	935,112	875,522						224,602	218,064	666,484	639,791						235,198	223,301	676,641	659,463						68,189	61,862	189,661	173,054					205,420	204,711	638,883	603,878						703,287	659,875	2,073,756	1,967,225						3,180,272	3,024,626	9,558,371	9,131,318						5,352,102	5,074,812	15,973,608	15,214,160
Expenses
Administrative	451,268	459,714	1,601,123	1,351,872	5,109	2,824	15,037	10,430					317	317	1,021	1,432					4,365	7,845	18,796	23,211						4,162	1,599	7,968	4,079						6,816	6,285	14,367	29,996						5,916	2,514	9,502	6,617					1,788	3,823	4,253	6,755						8,440	11,209	26,848	37,307						77,694	59,789	191,418	169,223						114,608	96,206	289,209	289,048
Depreciation and amortization	2,824,318	1,554,985	5,758,310	4,592,503	107,829	101,777	319,895	308,642					2,182	2,909	6,671	9,394					105,992	114,199	321,730	336,339						60,185	63,962	180,399	190,555						76,900	74,920	230,538	224,008						19,797	19,736	60,895	59,208					79,914	80,075	237,847	238,621						244,670	240,997	733,437	717,664						1,448,329	1,443,275	4,326,808	4,314,274						2,145,798	2,141,849	6,418,221	6,398,704
Management fees					15,699	13,547	41,713	40,573					2,872	2,882	8,624	8,645					12,851	11,953	38,633	36,070						8,922	9,079	27,108	25,964						8,795	8,761	26,682	25,753						2,627	2,681	7,614	7,268					8,725	8,225	25,801	24,241						26,626	26,655	83,965	78,862						70,212	66,474	203,719	196,041						157,330	150,256	463,860	443,417
Operating	786,179	720,490	3,032,964	2,648,567	31,039	32,187	94,588	85,319													13,266	13,451	53,310	42,933						215	1	927	636						615	165	1,232	1,070						77	310	2,038	1,237					14,951	16,664	56,899	54,385						61,202	63,833	252,383	242,157						237,482	217,288	802,142	764,389						358,848	343,898	1,263,520	1,192,125
Renting	78,874	48,483	135,540	147,844	1,281	14,574	10,831	16,664														3,318	1,788	3,459						1,453	3,389	5,378	5,718						2,503	389	9,753	3,660								1,425	1,450					2,054	1,019	6,096	3,013						1,026	2,265	4,331	8,845						39,451	30,033	66,105	71,830						47,766	54,987	105,705	114,639
Repairs and maintenance	1,641,608	1,449,939	4,238,821	3,776,725	29,100	39,279	93,194	94,156					700	950	4,400	5,475					24,374	17,401	62,553	61,720						82,343	89,279	239,752	235,472						76,461	71,906	224,156	205,125						24,231	21,202	70,217	53,379					25,303	15,818	50,840	45,315						112,318	85,358	278,025	283,251						389,052	277,534	843,069	707,486						763,882	618,728	1,866,206	1,691,378
Taxes and insurance	1,301,388	1,053,196	3,667,180	3,206,065	52,614	48,843	164,374	149,722					12,642	12,025	37,050	37,211					28,897	25,358	85,152	75,919						37,599	36,279	114,730	109,871						38,040	39,893	109,188	121,571						11,293	11,329	31,912	34,890					29,945	26,154	91,893	77,022						87,950	85,473	257,239	253,782						427,973	371,328	1,170,929	1,115,971						726,954	656,683	2,062,466	1,975,959
Total Expenses	7,484,223	5,642,420	19,578,400	16,787,978	242,671	253,031	739,632	705,506					18,715	19,084	57,765	62,158					189,745	193,525	581,962	579,650						194,878	203,588	576,261	572,294						210,131	202,319	615,915	611,182						63,942	57,772	183,604	164,047					162,681	151,778	473,628	449,351						542,233	515,790	1,636,229	1,621,867						2,690,194	2,465,720	7,604,189	7,339,215						4,315,188	4,062,608	12,469,187	12,105,270
Income Before Other Income (Expenses) and Discontinued Operations	2,483,529	3,116,606	8,411,808	9,395,885	103,510	61,665	279,465	242,266					53,095	52,962	157,835	153,980					127,399	102,106	353,150	295,872						29,724	14,476	90,223	67,497						25,068	20,982	60,726	48,281						4,248	4,090	6,057	9,007					42,739	52,933	165,255	154,527						161,054	144,085	437,527	345,358						490,078	558,906	1,954,182	1,792,103						1,036,914	1,012,205	3,504,421	3,108,891
Other Income (loss)
Interest expense	(2,142,817)	(1,926,556)	(5,746,533)	(5,772,970)	(122,858)	(124,806)	(366,060)	(373,357)					(14,510)	(15,110)	(43,776)	(45,437)					(97,798)	(120,435)	(355,345)	(366,348)						(71,481)	(72,408)	(212,962)	(216,254)						(67,226)	(68,108)	(200,200)	(203,375)						(21,332)	(24,738)	(70,021)	(73,609)					(78,601)	(79,666)	(234,140)	(238,036)						(206,762)	(210,248)	(616,349)	(628,955)						(1,262,391)	(1,277,390)	(3,757,844)	(3,818,020)						(1,942,961)	(1,992,910)	(5,856,697)	(5,963,390)
Interest Income	230	554	945	1,746																		12	26	36						2	21	5	62															36	51	122	165																									57							39	84	210	262
Interest Income from Note																																																722	1,458	2,729	4,901																																722	1,458	2,729	4,901
Other Income (Expenses)																							(68,588)																																																														(68,588)
Total Other Income (loss)	(2,515,749)	(2,343,735)	(6,771,940)	(6,993,301)	(122,858)	(124,806)	(366,060)	(373,357)					(14,510)	(15,110)	(43,776)	(45,437)					(97,798)	(120,423)	(423,908)	(366,311)						(71,479)	(72,388)	(212,957)	(216,193)						(67,226)	(68,108)	(200,200)	(203,375)						(20,574)	(23,229)	(67,170)	(68,543)					(78,601)	(79,666)	(234,140)	(238,036)						(206,762)	(210,248)	(616,349)	(628,955)						(1,262,391)	(1,277,390)	(3,757,786)	(3,818,020)						(1,942,200)	(1,991,367)	(5,922,346)	(5,958,227)
Net Income (Loss)	(32,874)	774,454	5,337,867	2,448,668	(19,348)	(63,141)	(86,594)	(131,091)					38,584	37,852	114,059	108,543					29,601	(18,317)	(70,758)	(70,439)						(41,755)	(57,912)	(122,734)	(148,696)						(42,159)	(47,126)	(139,474)	(155,094)						(16,326)	(19,139)	(61,113)	(59,537)					(35,862)	(26,733)	(68,884)	(83,509)						(45,708)	(66,164)	(178,822)	(283,597)						(772,312)	(718,484)	(1,803,605)	(2,025,917)						(905,286)	(979,163)	(2,417,925)	(2,849,337)
Proportionate share of net loss									$ (9,674)	$ (31,571)	$ (43,297)	$ (65,546)					$ 19,292	$ 18,926	$ 57,029	$ 54,271						$ 14,801	$ (9,158)	$ (35,379)	$ (35,220)						$ (20,878)	$ (28,956)	$ (61,367)	$ (74,348)						$ (21,079)	$ (23,563)	$ (69,737)	$ (77,547)					$ (8,163)	$ (9,569)	$ (30,556)	$ (29,768)						$ (17,931)	$ (13,366)	$ (34,442)	$ (41,754)						$ (22,854)	$ (33,082)	$ (89,411)	$ (141,798)						$ (308,925)	$ (287,394)	$ (721,442)	$ (810,367)	$ (375,412)	$ (417,733)	$ (1,028,602)	$ (1,222,077)	$ (66,487)	$ (130,339)	$ (307,160)	$ (411,710)	$ (308,925)	$ (287,394)	$ (721,442)	$ (810,367)
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%	50.00%	50.00%	50.00%					50.00%	50.00%	50.00%	50.00%	50.00%					40.00%	40.00%	40.00%	40.00%	40.00%					50.00%	50.00%	50.00%	50.00%	40.00%	40.00%	40.00%	40.00%