INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Income) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Oct. 28, 2009	Mar. 02, 2005	Sep. 30, 2004	Aug. 31, 2004	Nov. 30, 2001
Revenues
Rental income	$ 16,460,006	$ 14,980,116
Laundry and sundry income	120,403	108,673
Total Revenues	16,580,409	15,088,789
Expenses
Administrative	707,786	652,186
Depreciation and amortization	4,020,768	3,905,918
Management fee	673,084	605,391
Operating	2,676,208	2,045,968
Renting	169,389	261,966
Repairs and maintenance	2,279,651	1,970,087
Taxes and insurance	2,276,573	2,252,134
Total Expenses	12,803,459	11,693,650
Income Before Other Income (Expense)	3,776,950	3,395,139
Other Income (Expense)
Interest expense	(3,454,635)	(3,364,170)
Interest income	34	21
Total Other Income (Expense)	(3,434,532)	(3,689,319)
Net (Loss) Income	$ 342,418	(294,180)
NERA 50%
Other Income (Expense)
Ownership interest (as a percent)	50.00%
NERA 40%
Other Income (Expense)
Ownership interest (as a percent)	40.00%
Investment Properties
Revenues
Rental income	$ 5,553,845	4,758,898
Laundry and sundry income	43,132	39,330
Total Revenues	5,596,977	4,798,228
Expenses
Administrative	100,086	91,579
Depreciation and amortization	1,490,900	1,488,677
Management fee	161,700	127,249
Operating	587,842	500,667
Renting	92,439	163,187
Repairs and maintenance	594,380	670,571
Taxes and insurance	908,845	871,787
Total Expenses	3,936,192	3,913,717
Income Before Other Income (Expense)	1,660,785	884,511
Other Income (Expense)
Interest expense	(1,659,930)	(1,662,666)
Total Other Income (Expense)	(1,659,930)	(1,662,666)
Net (Loss) Income	855	(778,155)
Proportionate share of net income (loss)	20,069	(325,170)
Investment Properties | NERA 50%
Other Income (Expense)
Proportionate share of net income (loss)	98,647	(69,534)
Investment Properties | NERA 40%
Other Income (Expense)
Proportionate share of net income (loss)	(78,578)	(255,636)
Hamilton Essex 81
Revenues
Rental income	441,716	230,217
Laundry and sundry income	5,526	3,013
Total Revenues	447,242	233,230
Expenses
Administrative	4,774	14,556
Depreciation and amortization	119,185	118,942
Management fee	18,485	5,260
Operating	52,973	29,432
Renting	5,627	32,784
Repairs and maintenance	34,929	52,547
Taxes and insurance	66,461	65,539
Total Expenses	302,434	319,060
Income Before Other Income (Expense)	144,808	(85,830)
Other Income (Expense)
Interest expense	(62,230)	(61,312)
Total Other Income (Expense)	(62,230)	(61,312)
Net (Loss) Income	82,578	$ (147,142)
Ownership interest (as a percent)		50.00%
Hamilton Essex 81 | NERA 50%
Other Income (Expense)
Proportionate share of net income (loss)	$ 41,289	$ (73,571)
Ownership interest (as a percent)	50.00%
Hamilton Essex Development
Revenues
Rental income	$ 86,103
Total Revenues	86,103
Expenses
Administrative	750	853
Depreciation and amortization	2,927	5,074
Management fee	3,317
Taxes and insurance	15,990	14,885
Total Expenses	22,984	20,812
Income Before Other Income (Expense)	63,119	(20,812)
Other Income (Expense)
Net (Loss) Income	63,119	$ (20,812)
Ownership interest (as a percent)		50.00%
Hamilton Essex Development | NERA 50%
Other Income (Expense)
Proportionate share of net income (loss)	$ 31,559	$ (10,406)
Ownership interest (as a percent)	50.00%
345 Franklin
Revenues
Rental income	$ 346,820	333,093
Laundry and sundry income		112
Total Revenues	346,820	333,205
Expenses
Administrative	11,524	4,803
Depreciation and amortization	86,413	85,345
Management fee	13,803	12,412
Operating	21,893	13,521
Renting	10,160	14,328
Repairs and maintenance	54,531	23,278
Taxes and insurance	43,724	43,670
Total Expenses	242,048	197,357
Income Before Other Income (Expense)	104,772	135,848
Other Income (Expense)
Interest expense	(88,437)	(90,643)
Total Other Income (Expense)	(88,437)	(90,643)
Net (Loss) Income	16,335	$ 45,205
Ownership interest (as a percent)		50.00%					50.00%
345 Franklin | NERA 50%
Other Income (Expense)
Proportionate share of net income (loss)	$ 8,168	$ 22,602
Ownership interest (as a percent)	50.00%
Hamilton 1025
Revenues
Rental income	$ 24,369	24,369
Total Revenues	24,369	24,369
Expenses
Administrative	651	714
Depreciation and amortization	816	816
Management fee	958	628
Operating	1,172	91
Taxes and insurance	4,408	4,797
Total Expenses	8,005	7,046
Income Before Other Income (Expense)	16,364	17,323
Other Income (Expense)
Net (Loss) Income	16,364	$ 17,324
Ownership interest (as a percent)		50.00%		50.00%
Hamilton 1025 | NERA 50%
Other Income (Expense)
Proportionate share of net income (loss)	$ 8,182	$ 8,661
Ownership interest (as a percent)	50.00%
Hamilton Minuteman
Revenues
Rental income	$ 293,738	284,524
Laundry and sundry income		1,276
Total Revenues	293,738	285,800
Expenses
Administrative	2,350	3,583
Depreciation and amortization	83,960	84,025
Management fee	11,393	11,296
Operating	55,585	34,596
Renting	3,802	360
Repairs and maintenance	16,213	19,405
Taxes and insurance	37,727	34,976
Total Expenses	211,030	188,241
Income Before Other Income (Expense)	82,708	97,559
Other Income (Expense)
Interest expense	(58,739)	(58,625)
Total Other Income (Expense)	(58,739)	(58,625)
Net (Loss) Income	23,969	$ 38,934
Ownership interest (as a percent)		50.00%			50.00%
Hamilton Minuteman | NERA 50%
Other Income (Expense)
Proportionate share of net income (loss)	$ 11,985	$ 19,466
Ownership interest (as a percent)	50.00%
Hamilton on Main Apts
Revenues
Rental income	$ 890,382	816,812
Laundry and sundry income	10,551	8,777
Total Revenues	900,933	825,589
Expenses
Administrative	24,520	20,219
Depreciation and amortization	268,464	269,915
Management fee	37,373	32,375
Operating	108,690	124,933
Renting	14,989	30,760
Repairs and maintenance	133,918	122,446
Taxes and insurance	130,669	110,134
Total Expenses	718,623	710,782
Income Before Other Income (Expense)	182,310	114,807
Other Income (Expense)
Interest expense	(187,378)	(187,378)
Total Other Income (Expense)	(187,378)	(187,378)
Net (Loss) Income	(5,068)	$ (72,571)
Ownership interest (as a percent)		50.00%				50.00%
Hamilton on Main Apts | NERA 50%
Other Income (Expense)
Proportionate share of net income (loss)	$ (2,535)	$ (36,286)
Ownership interest (as a percent)	50.00%
Dexter Park
Revenues
Rental income	$ 3,470,717	3,069,883
Laundry and sundry income	27,055	26,152
Total Revenues	3,497,772	3,096,035
Expenses
Administrative	55,517	46,851
Depreciation and amortization	929,135	924,560
Management fee	76,371	65,278
Operating	347,529	298,094
Renting	57,861	84,955
Repairs and maintenance	354,789	452,895
Taxes and insurance	609,866	597,786
Total Expenses	2,431,068	2,470,419
Income Before Other Income (Expense)	1,066,704	625,616
Other Income (Expense)
Interest expense	(1,263,146)	(1,264,708)
Total Other Income (Expense)	(1,263,146)	(1,264,708)
Net (Loss) Income	(196,442)	$ (639,092)
Ownership interest (as a percent)		40.00%	40.00%
Dexter Park | NERA 40%
Other Income (Expense)
Proportionate share of net income (loss)	$ (78,578)	$ (255,636)
Ownership interest (as a percent)	40.00%