INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Balance Sheet) (Details)	Mar. 31, 2016 USD ($) item	Dec. 31, 2015 USD ($)	Mar. 31, 2015 USD ($) item	Oct. 28, 2009 USD ($) item	Oct. 03, 2005 USD ($) item	Mar. 07, 2005 item	Mar. 02, 2005 USD ($) item	Sep. 30, 2004 USD ($) item	Aug. 31, 2004 USD ($) item	Nov. 30, 2001 USD ($) item
LIABILITIES AND PARTNERS' CAPITAL
Investment in Unconsolidated Joint Ventures	$ 7,440,487	$ 7,819,162
Distribution and Loss in Excess of investments in Unconsolidated Joint Venture	(2,384,811)	$ (2,288,090)
Investment Properties
ASSETS
Rental Properties	147,408,613		$ 152,626,070
Cash & Cash Equivalents	1,586,477		1,520,246
Rent Receivable	128,548		128,112
Real Estate Tax Escrow	497,248		660,430
Prepaid Expenses & Other Assets	2,463,770		2,156,012
Total Assets	152,084,656		157,090,870
LIABILITIES AND PARTNERS' CAPITAL
Mortgage Notes Payable	135,277,998		136,899,687
Accounts Payable and Accrued Expenses	1,070,460		1,007,859
Advance Rental Payments and Security Deposits	3,759,860		3,471,735
Total Liabilities	140,108,318		141,379,281
Partners' Capital	11,976,338		15,711,589
Total Liabilities and Capital	152,084,656		157,090,870
Investment in Unconsolidated Joint Ventures	7,440,487		8,268,172
Distribution and Loss in Excess of investments in Unconsolidated Joint Venture	(2,384,811)		(1,487,939)
Total Investment in Unconsolidated Joint Ventures (Net)	$ 5,055,676		$ 6,780,233
Total units/ condominiums
Total | item	1,033		1,033
Units to be retained | item	786		786
Units to be sold | item	244		247
Units sold | item	247		240
Unsold units | item	3		7
Investment Properties | Residential buildings
Total units/ condominiums
Total | item	1,030		1,030
Investment Properties | Commercial
Total units/ condominiums
Total | item	3		3
Hamilton Essex 81
ASSETS
Rental Properties	$ 8,334,464		$ 8,636,396
Cash & Cash Equivalents	99,760		53,122
Rent Receivable	64,319		30,694
Real Estate Tax Escrow	33,350		114,280
Prepaid Expenses & Other Assets	154,594		76,589
Total Assets	8,686,487		8,911,081
LIABILITIES AND PARTNERS' CAPITAL
Mortgage Notes Payable	9,869,004		8,049,703
Accounts Payable and Accrued Expenses	56,759		44,904
Advance Rental Payments and Security Deposits	210,924		174,416
Total Liabilities	10,136,687		8,269,023
Partners' Capital	(1,450,200)		642,058
Total Liabilities and Capital	8,686,487		8,911,081
Investment in Unconsolidated Joint Ventures			$ 321,028
Distribution and Loss in Excess of investments in Unconsolidated Joint Venture	$ (725,100)
Total units/ condominiums
Total | item	49		49			48
Units to be retained | item	49		49
Hamilton Essex 81 | NERA 50%
LIABILITIES AND PARTNERS' CAPITAL
Partners' Capital % - NERA	50.00%		50.00%
Hamilton Essex 81 | Residential buildings
Total units/ condominiums
Total | item	48		48
Hamilton Essex 81 | Commercial
Total units/ condominiums
Total | item	1		1
Hamilton Essex Development
ASSETS
Rental Properties	$ 2,617,959		$ 2,620,789
Cash & Cash Equivalents	49,336		49,826
Prepaid Expenses & Other Assets	226		224
Total Assets	2,667,521		2,670,839
LIABILITIES AND PARTNERS' CAPITAL
Mortgage Notes Payable			1,970,977
Accounts Payable and Accrued Expenses	426		4,941
Total Liabilities	426		1,975,918
Partners' Capital	2,667,095		694,921
Total Liabilities and Capital	2,667,521		2,670,839
Investment in Unconsolidated Joint Ventures	$ 1,333,547		$ 347,460
Total units/ condominiums
Total | item	1		1
Units to be retained | item	1		1
Hamilton Essex Development | NERA 50%
LIABILITIES AND PARTNERS' CAPITAL
Partners' Capital % - NERA	50.00%		50.00%
Hamilton Essex Development | Commercial
Total units/ condominiums
Total | item	1		1
345 Franklin
ASSETS
Rental Properties	$ 6,693,104		$ 7,040,787
Cash & Cash Equivalents	125,764		107,441
Rent Receivable	2,253		5,470
Real Estate Tax Escrow	40,392		41,532
Prepaid Expenses & Other Assets	31,233		26,198
Total Assets	6,892,746		7,221,428
LIABILITIES AND PARTNERS' CAPITAL
Mortgage Notes Payable	9,918,433		9,911,775
Accounts Payable and Accrued Expenses	77,758		81,557
Advance Rental Payments and Security Deposits	215,976		203,975
Total Liabilities	10,212,167		10,197,307
Partners' Capital	(3,319,421)		(2,975,879)
Total Liabilities and Capital	6,892,746		7,221,428
Partners' Capital % - NERA										50.00%
Investment in Unconsolidated Joint Ventures										$ 1,533,000
Distribution and Loss in Excess of investments in Unconsolidated Joint Venture	$ (1,659,711)		$ (1,487,939)
Total units/ condominiums
Total | item	40		40							40
Units to be retained | item	40		40
345 Franklin | NERA 50%
LIABILITIES AND PARTNERS' CAPITAL
Partners' Capital % - NERA	50.00%		50.00%
345 Franklin | Residential buildings
Total units/ condominiums
Total | item	40		40
Hamilton 1025
ASSETS
Rental Properties	$ 4,882,565		$ 5,097,980
Cash & Cash Equivalents	14,124		36,196
Rent Receivable	4,274		3,077
Real Estate Tax Escrow	81,742		73,919
Prepaid Expenses & Other Assets	58,033		47,558
Total Assets	5,040,738		5,258,730
LIABILITIES AND PARTNERS' CAPITAL
Mortgage Notes Payable	4,710,990		4,778,978
Accounts Payable and Accrued Expenses	24,052		21,772
Advance Rental Payments and Security Deposits	102,088		95,932
Total Liabilities	4,837,130		4,896,682
Partners' Capital	203,608		362,048
Total Liabilities and Capital	5,040,738		5,258,730
Partners' Capital % - NERA							50.00%
Investment in Unconsolidated Joint Ventures	$ 101,803		$ 181,023				$ 2,352,000
Total units/ condominiums
Total | item	176		176				176
Units to be retained | item	49		49				49
Units to be sold | item	127		127
Units sold | item	127		127				127
Hamilton 1025 | NERA 50%
LIABILITIES AND PARTNERS' CAPITAL
Partners' Capital % - NERA	50.00%		50.00%
Hamilton 1025 | Residential buildings
Total units/ condominiums
Total | item	175		175
Hamilton 1025 | Commercial
Total units/ condominiums
Total | item	1		1
Hamilton Bay Sales
ASSETS
Rental Properties	$ 357,803		$ 802,055
Cash & Cash Equivalents	126,576		15,110
Rent Receivable	1,520		0
Prepaid Expenses & Other Assets	18,370		20,197
Total Assets	504,269		837,362
LIABILITIES AND PARTNERS' CAPITAL
Accounts Payable and Accrued Expenses	13,187		20,019
Advance Rental Payments and Security Deposits	2,362		11,114
Total Liabilities	15,549		31,133
Partners' Capital	488,720		806,229
Total Liabilities and Capital	504,269		837,362
Investment in Unconsolidated Joint Ventures	$ 244,359		$ 403,114
Total units/ condominiums
Total | item	120		120
Units to be sold | item	117		120
Units sold | item	120		113
Unsold units | item	3		7
Hamilton Bay Sales | NERA 50%
LIABILITIES AND PARTNERS' CAPITAL
Partners' Capital % - NERA	50.00%		50.00%
Hamilton Bay Sales | Residential buildings
Total units/ condominiums
Total | item	120		120
Hamilton Bay Apts
ASSETS
Rental Properties	$ 6,095,119		$ 6,344,523
Cash & Cash Equivalents	11,116		30,261
Rent Receivable	3,612		8,531
Real Estate Tax Escrow	44,499		51,749
Prepaid Expenses & Other Assets	66,580		49,482
Total Assets	6,220,926		6,484,546
LIABILITIES AND PARTNERS' CAPITAL
Mortgage Notes Payable	4,480,571		4,544,146
Accounts Payable and Accrued Expenses	9,900		13,657
Advance Rental Payments and Security Deposits	99,093		93,589
Total Liabilities	4,589,564		4,651,392
Partners' Capital	1,631,362		1,833,154
Total Liabilities and Capital	6,220,926		6,484,546
Partners' Capital % - NERA					50.00%
Investment in Unconsolidated Joint Ventures	$ 815,680		$ 916,577		$ 2,500,000
Total units/ condominiums
Total | item	48		48		168
Units to be retained | item	48		48		48
Units sold | item					120
Hamilton Bay Apts | NERA 50%
LIABILITIES AND PARTNERS' CAPITAL
Partners' Capital % - NERA	50.00%		50.00%
Hamilton Bay Apts | Residential buildings
Total units/ condominiums
Total | item	48		48
Hamilton Minuteman
ASSETS
Rental Properties	$ 6,273,766		$ 6,483,432
Cash & Cash Equivalents	60,710		51,370
Rent Receivable	75		287
Real Estate Tax Escrow	43,381		39,769
Prepaid Expenses & Other Assets	39,366		42,326
Total Assets	6,417,298		6,617,184
LIABILITIES AND PARTNERS' CAPITAL
Mortgage Notes Payable	5,189,002		5,264,978
Accounts Payable and Accrued Expenses	63,090		52,119
Advance Rental Payments and Security Deposits	117,749		96,246
Total Liabilities	5,369,841		5,413,343
Partners' Capital	1,047,457		1,203,841
Total Liabilities and Capital	6,417,298		6,617,184
Partners' Capital % - NERA								50.00%
Investment in Unconsolidated Joint Ventures	$ 523,728		$ 601,920					$ 5,075,000
Total units/ condominiums
Total | item	42		42					42
Units to be retained | item	42		42
Hamilton Minuteman | NERA 50%
LIABILITIES AND PARTNERS' CAPITAL
Partners' Capital % - NERA	50.00%		50.00%
Hamilton Minuteman | Residential buildings
Total units/ condominiums
Total | item	42		42
Hamilton on Main Apts
ASSETS
Rental Properties	$ 18,357,260		$ 19,225,373
Cash & Cash Equivalents	129,070		191,526
Rent Receivable	14,814		8,901
Real Estate Tax Escrow	37,745		78,483
Prepaid Expenses & Other Assets	96,529		92,912
Total Assets	18,635,418		19,597,195
LIABILITIES AND PARTNERS' CAPITAL
Mortgage Notes Payable	16,764,902		16,748,850
Accounts Payable and Accrued Expenses	151,830		142,669
Advance Rental Payments and Security Deposits	335,850		316,025
Total Liabilities	17,252,582		17,207,544
Partners' Capital	1,382,836		2,389,651
Total Liabilities and Capital	18,635,418		19,597,195
Partners' Capital % - NERA									50.00%
Investment in Unconsolidated Joint Ventures	$ 691,418		$ 1,194,825						$ 8,000,000
Total units/ condominiums
Total | item	148		148						280
Units to be retained | item	148		148
Units sold | item									137
Hamilton on Main Apts | NERA 50%
LIABILITIES AND PARTNERS' CAPITAL
Partners' Capital % - NERA	50.00%		50.00%
Hamilton on Main Apts | Residential buildings
Total units/ condominiums
Total | item	148		148
Dexter Park
ASSETS
Rental Properties	$ 93,796,573		$ 96,374,735
Cash & Cash Equivalents	970,021		985,394
Rent Receivable	37,681		71,152
Real Estate Tax Escrow	216,139		260,698
Prepaid Expenses & Other Assets	1,998,839		1,800,526
Total Assets	97,019,253		99,492,505
LIABILITIES AND PARTNERS' CAPITAL
Mortgage Notes Payable	84,345,096		85,630,280
Accounts Payable and Accrued Expenses	673,458		626,221
Advance Rental Payments and Security Deposits	2,675,818		2,480,438
Total Liabilities	87,694,372		88,736,939
Partners' Capital	9,324,881		10,755,566
Total Liabilities and Capital	97,019,253		99,492,505
Partners' Capital % - NERA				40.00%
Investment in Unconsolidated Joint Ventures	$ 3,729,952		$ 4,302,225	$ 15,925,000
Total units/ condominiums
Total | item	409		409	409
Units to be retained | item	409		409
Dexter Park | NERA 40%
LIABILITIES AND PARTNERS' CAPITAL
Partners' Capital % - NERA	40.00%		40.00%
Dexter Park | Residential buildings
Total units/ condominiums
Total | item	409		409