INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Income) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Oct. 28, 2009	Mar. 02, 2005	Sep. 30, 2004	Aug. 31, 2004	Nov. 30, 2001
Revenues
Rental income	$ 23,526,780	$ 22,622,412	$ 21,440,656
Laundry and Sundry Income	151,950	160,515	152,814
Total Revenues	23,678,730	22,782,927	21,593,470
Expenses
Administrative	368,608	396,789	369,284
Depreciation and amortization	6,007,093	8,112,439	8,540,316
Management Fees	678,263	651,872	619,833
Operating	1,947,228	1,900,986	1,675,313
Renting	171,267	252,309	150,899
Repairs and Maintenance	2,546,726	2,589,052	2,436,188
Taxes and Insurance	2,750,187	2,702,908	2,716,069
Total Expenses	14,469,372	16,606,355	16,507,902
Income Before Other Income	9,209,358	6,176,572	5,085,568
Other Income (loss)
Interest Expense	(7,304,932)	(7,537,017)	(7,776,238)
Interest Income	14	489	250
Interest Income from Note			3,258
Other Income (Expense)	96		(68,588)
Gain on Sale of Real Estate	169,093	475,335
Total Other Income (Loss)	(7,135,729)	(7,061,193)	(7,841,318)
Net Income (Loss)	2,073,629	(884,621)	(2,755,750)
Proportionate share of net income (loss)	868,574	(325,297)
NERA 50%
Other Income (loss)
Proportionate share of net income (loss)	195,616	142,764	(322,897)
NERA 40%
Other Income (loss)
Proportionate share of net income (loss)	672,958	(468,061)	(843,981)
Hamilton Essex 81
Revenues
Rental income	1,464,871	1,409,443	1,362,012
Laundry and Sundry Income	13,319	17,634	17,549
Total Revenues	1,478,190	1,427,077	1,379,561
Expenses
Administrative	28,849	32,908	18,330
Depreciation and amortization	472,602	434,834	428,609
Management Fees	63,226	57,914	55,813
Operating	102,872	121,354	114,778
Renting	11,246	11,900	11,106
Repairs and Maintenance	153,329	156,321	123,702
Taxes and Insurance	216,602	228,556	216,560
Total Expenses	1,048,726	1,043,787	968,898
Income Before Other Income	429,464	383,290	410,663
Other Income (loss)
Interest Expense	(399,176)	(483,197)	(488,369)
Interest Income	0
Other Income (Expense)	0
Gain on Sale of Real Estate	0
Total Other Income (Loss)	(399,176)	(483,197)	(488,369)
Net Income (Loss)	30,288	$ (99,907)	$ (77,706)
Proportionate share of net income (loss)	0
Ownership interest (as a percent)		50.00%	50.00%
Hamilton Essex 81 | NERA 50%
Other Income (loss)
Proportionate share of net income (loss)	$ 15,144	$ (49,954)	$ (38,853)
Ownership interest (as a percent)	50.00%
Hamilton Essex 81 | NERA 40%
Other Income (loss)
Proportionate share of net income (loss)	$ 0
Hamilton Essex Development
Revenues
Rental income	277,568	291,517	287,410
Laundry and Sundry Income	0
Total Revenues	277,568	291,517	287,410
Expenses
Administrative	2,000	1,530	1,370
Depreciation and amortization	8,468	11,287	9,803
Management Fees	11,114	11,661	11,496
Operating	0
Renting	0
Repairs and Maintenance	200	3,810	4,950
Taxes and Insurance	52,846	53,556	49,192
Total Expenses	74,628	81,844	76,811
Income Before Other Income	202,940	209,673	210,599
Other Income (loss)
Interest Expense	(40,644)	(55,877)	(58,093)
Interest Income	0
Other Income (Expense)	0
Gain on Sale of Real Estate	0
Total Other Income (Loss)	(40,644)	(55,877)	(58,093)
Net Income (Loss)	162,296	$ 153,796	$ 152,506
Proportionate share of net income (loss)	0
Ownership interest (as a percent)		50.00%	50.00%
Hamilton Essex Development | NERA 50%
Other Income (loss)
Proportionate share of net income (loss)	$ 81,148	$ 76,898	$ 76,253
Ownership interest (as a percent)	50.00%
Hamilton Essex Development | NERA 40%
Other Income (loss)
Proportionate share of net income (loss)	$ 0
345 Franklin
Revenues
Rental income	1,396,428	1,347,653	1,258,313
Laundry and Sundry Income	656	1,547	2,683
Total Revenues	1,397,084	1,349,200	1,260,996
Expenses
Administrative	35,071	41,319	23,813
Depreciation and amortization	375,433	401,813	428,003
Management Fees	57,604	55,776	51,706
Operating	80,873	60,695	68,364
Renting	15,815	13,870	3,788
Repairs and Maintenance	61,183	67,219	86,844
Taxes and Insurance	124,266	118,103	114,669
Total Expenses	750,245	758,795	777,187
Income Before Other Income	646,839	590,405	483,809
Other Income (loss)
Interest Expense	(391,756)	(391,451)	(453,197)
Interest Income	0		26
Other Income (Expense)	0		(68,588)
Gain on Sale of Real Estate	0
Total Other Income (Loss)	(391,756)	(391,451)	(521,759)
Net Income (Loss)	255,083	$ 198,954	$ (37,950)
Proportionate share of net income (loss)	0
Ownership interest (as a percent)		50.00%	50.00%					50.00%
345 Franklin | NERA 50%
Other Income (loss)
Proportionate share of net income (loss)	$ 127,542	$ 99,477	$ (18,975)
Ownership interest (as a percent)	50.00%
345 Franklin | NERA 40%
Other Income (loss)
Proportionate share of net income (loss)	$ 0
Hamilton 1025
Revenues
Rental income	962,511	933,315	896,256
Laundry and Sundry Income	0
Total Revenues	962,511	933,315	896,256
Expenses
Administrative	6,262	8,550	9,552
Depreciation and amortization	241,539	240,808	240,658
Management Fees	37,736	37,388	36,066
Operating	1,050	1,023	1,150
Renting	270	9,701	5,378
Repairs and Maintenance	314,409	326,111	320,348
Taxes and Insurance	166,842	158,129	151,971
Total Expenses	768,108	781,710	765,123
Income Before Other Income	194,403	151,605	131,133
Other Income (loss)
Interest Expense	(276,066)	(280,385)	(284,257)
Interest Income	14	21	8
Other Income (Expense)	0
Gain on Sale of Real Estate	0
Total Other Income (Loss)	(276,052)	(280,364)	(284,249)
Net Income (Loss)	(81,649)	$ (128,759)	$ (153,116)
Proportionate share of net income (loss)	0
Ownership interest (as a percent)		50.00%	50.00%		50.00%
Hamilton 1025 | NERA 50%
Other Income (loss)
Proportionate share of net income (loss)	$ (40,825)	$ (64,380)	$ (76,558)
Ownership interest (as a percent)	50.00%
Hamilton 1025 | NERA 40%
Other Income (loss)
Proportionate share of net income (loss)	$ 0
Hamilton Bay Sales
Revenues
Rental income	99,413	187,228	261,949
Laundry and Sundry Income	0
Total Revenues	99,413	187,228	261,949
Expenses
Administrative	8,105	4,361	10,134
Depreciation and amortization	25,418	36,183	80,697
Management Fees	3,987	7,545	10,538
Operating	911	1,058	2,234
Renting	0	1,238	1,425
Repairs and Maintenance	43,559	84,460	94,640
Taxes and Insurance	20,461	36,624	42,765
Total Expenses	102,441	171,469	242,433
Income Before Other Income	(3,028)	15,759	19,516
Other Income (loss)
Interest Expense	(322)	(596)	(73,819)
Interest Income	0	468	159
Interest Income from Note			3,258
Other Income (Expense)	0
Gain on Sale of Real Estate	169,093	475,335
Total Other Income (Loss)	168,771	475,207	(70,402)
Net Income (Loss)	165,743	$ 490,966	$ (50,886)
Proportionate share of net income (loss)	0
Ownership interest (as a percent)		50.00%	50.00%
Hamilton Bay Sales | NERA 50%
Other Income (loss)
Proportionate share of net income (loss)	$ 82,871	$ 245,483	$ (25,443)
Ownership interest (as a percent)	50.00%
Hamilton Bay Sales | NERA 40%
Other Income (loss)
Proportionate share of net income (loss)	$ 0
Hamilton Bay Apts
Revenues
Rental income	973,559	943,525	911,845
Laundry and Sundry Income	0
Total Revenues	973,559	943,525	911,845
Expenses
Administrative	8,592	18,053	16,291
Depreciation and amortization	301,538	300,634	307,546
Management Fees	38,640	38,392	35,831
Operating	1,173	1,801	1,343
Renting	2,986	6,563	10,986
Repairs and Maintenance	362,861	294,811	295,144
Taxes and Insurance	154,348	158,858	146,870
Total Expenses	870,138	819,112	814,011
Income Before Other Income	103,421	124,413	97,834
Other Income (loss)
Interest Expense	(259,274)	(263,656)	(267,228)
Interest Income	0
Other Income (Expense)	0
Gain on Sale of Real Estate	0
Total Other Income (Loss)	(259,274)	(263,656)	(267,228)
Net Income (Loss)	(155,853)	$ (139,243)	$ (169,394)
Proportionate share of net income (loss)	0
Ownership interest (as a percent)		50.00%	50.00%
Hamilton Bay Apts | NERA 50%
Other Income (loss)
Proportionate share of net income (loss)	$ (77,927)	$ (69,622)	$ (84,697)
Ownership interest (as a percent)	50.00%
Hamilton Bay Apts | NERA 40%
Other Income (loss)
Proportionate share of net income (loss)	$ 0
Hamilton Minuteman
Revenues
Rental income	942,539	919,874	858,492
Laundry and Sundry Income	0	1,731	675
Total Revenues	942,539	921,605	859,167
Expenses
Administrative	5,402	8,823	6,206
Depreciation and amortization	333,119	322,642	318,095
Management Fees	38,683	37,869	34,129
Operating	93,492	81,659	83,143
Renting	8,807	8,475	6,350
Repairs and Maintenance	82,769	79,215	69,057
Taxes and Insurance	124,393	119,406	121,442
Total Expenses	686,665	658,089	638,422
Income Before Other Income	255,874	263,516	220,745
Other Income (loss)
Interest Expense	(304,757)	(308,646)	(312,507)
Interest Income	0
Other Income (Expense)	0
Gain on Sale of Real Estate	0
Total Other Income (Loss)	(304,757)	(308,646)	(312,507)
Net Income (Loss)	(48,883)	$ (45,130)	$ (91,762)
Proportionate share of net income (loss)	0
Ownership interest (as a percent)		50.00%	50.00%			50.00%
Hamilton Minuteman | NERA 50%
Other Income (loss)
Proportionate share of net income (loss)	$ (24,442)	$ (22,565)	$ (45,881)
Ownership interest (as a percent)	50.00%
Hamilton Minuteman | NERA 40%
Other Income (loss)
Proportionate share of net income (loss)	$ 0
Hamilton on Main Apts
Revenues
Rental income	3,093,045	2,931,793	2,753,120
Laundry and Sundry Income	44,911	38,668	37,192
Total Revenues	3,137,956	2,970,461	2,790,312
Expenses
Administrative	48,818	54,694	38,144
Depreciation and amortization	971,320	958,081	948,478
Management Fees	122,405	116,157	112,749
Operating	432,352	399,600	347,382
Renting	9,765	23,311	6,273
Repairs and Maintenance	393,665	395,608	389,671
Taxes and Insurance	341,990	367,278	342,995
Total Expenses	2,320,315	2,314,729	2,185,692
Income Before Other Income	817,641	655,732	604,620
Other Income (loss)
Interest Expense	(753,528)	(800,881)	(822,109)
Interest Income	0
Other Income (Expense)	96
Gain on Sale of Real Estate	0
Total Other Income (Loss)	(753,432)	(800,881)	(822,109)
Net Income (Loss)	64,209	$ (145,149)	$ (217,489)
Proportionate share of net income (loss)	0
Ownership interest (as a percent)		50.00%	50.00%				50.00%
Hamilton on Main Apts | NERA 50%
Other Income (loss)
Proportionate share of net income (loss)	$ 32,105	$ (72,575)	$ (108,745)
Ownership interest (as a percent)	50.00%
Hamilton on Main Apts | NERA 40%
Other Income (loss)
Proportionate share of net income (loss)	$ 0
Dexter Park
Revenues
Rental income	14,316,846	13,658,064	12,851,259
Laundry and Sundry Income	93,064	100,935	94,715
Total Revenues	14,409,910	13,758,999	12,945,974
Expenses
Administrative	225,509	226,551	245,444
Depreciation and amortization	3,277,656	5,406,157	5,778,427
Management Fees	304,868	289,170	271,505
Operating	1,234,505	1,233,796	1,056,919
Renting	122,378	177,251	105,593
Repairs and Maintenance	1,134,751	1,181,497	1,051,832
Taxes and Insurance	1,548,439	1,462,398	1,529,605
Total Expenses	7,848,106	9,976,820	10,039,325
Income Before Other Income	6,561,804	3,782,179	2,906,649
Other Income (loss)
Interest Expense	(4,879,409)	(4,952,328)	(5,016,659)
Interest Income	0		57
Other Income (Expense)	0
Gain on Sale of Real Estate	0
Total Other Income (Loss)	(4,879,408)	(4,952,328)	(5,016,602)
Net Income (Loss)	1,682,396	$ (1,170,149)	$ (2,109,953)
Proportionate share of net income (loss)	0
Ownership interest (as a percent)		40.00%	40.00%	40.00%
Dexter Park | NERA 50%
Other Income (loss)
Proportionate share of net income (loss)	0
Dexter Park | NERA 40%
Other Income (loss)
Proportionate share of net income (loss)	$ 672,958	$ (468,061)	$ (843,981)
Ownership interest (as a percent)	40.00%