MORTGAGE NOTES PAYABLE (Facility Agreement Properties) (Details) - USD ($)	Jun. 16, 2022	Nov. 30, 2021	Jun. 15, 2022	Nov. 29, 2021
Debt Instrument [Line Items]
Mortgage amount	$ 80,284,000	$ 156,000,000	$ 37,065,000	$ 65,305,000
Deferred Finance Costs	854,130	1,676,088
Mortgage prepayment penalties	834,544	2,745,979
Clovelly Apartments L.P. Residential Apartments Nashua, New Hampshire
Debt Instrument [Line Items]
Mortgage amount		11,214,000		4,160,000
Deferred Finance Costs		121,817
Mortgage prepayment penalties		167,141
Commonwealth 1137 L.P. Residential Apartments Boston, Massachusetts
Debt Instrument [Line Items]
Mortgage amount		5,440,000		3,750,000
Deferred Finance Costs		60,504
Mortgage prepayment penalties		151,314
Commonwealth 1144 L.P. Residential Apartments Boston, Massachusetts
Debt Instrument [Line Items]
Mortgage amount		32,325,000		14,780,000
Deferred Finance Costs		340,007
Mortgage prepayment penalties		592,728
Executive Apartments L.P. Residential Apartments Framingham, Massachusetts
Debt Instrument [Line Items]
Mortgage amount		8,190,000		2,415,000
Deferred Finance Costs		89,333
Mortgage prepayment penalties		96,434
North Beacon 140 L.P. Residential Units Boston, Massachusetts
Debt Instrument [Line Items]
Mortgage amount		12,683,000		6,937,000
Deferred Finance Costs		135,813
Mortgage prepayment penalties		277,003
Olde English Apartments L.P. Residential Apartments Lowell, Massachusetts
Debt Instrument [Line Items]
Mortgage amount		9,608,000		3,080,000
Deferred Finance Costs		104,345
Mortgage prepayment penalties		123,956
Redwood Hills L.P. Residential Units Worcester, Massachusetts
Debt Instrument [Line Items]
Mortgage amount		17,105,000		6,743,000
Deferred Finance Costs		188,406
Mortgage prepayment penalties		271,204
River Drive L.P. Residential Apartments Danvers, Massachusetts
Debt Instrument [Line Items]
Mortgage amount		9,543,000		3,465,000
Deferred Finance Costs		104,605
Mortgage prepayment penalties		139,218
Highland Street Apartments, L.P. Residential Apartments Lowell, Massachusetts
Debt Instrument [Line Items]
Mortgage amount		3,960,000		1,050,000
Deferred Finance Costs		45,076
Mortgage prepayment penalties		41,928
WCB Associates LLC Residential Apartments Brockton, Massachusetts
Debt Instrument [Line Items]
Mortgage amount		19,266,000		7,000,000
Deferred Finance Costs		204,586
Mortgage prepayment penalties		408,873
Hamilton Oaks Associates LLC Residential Apartments Brockton, Massachusetts
Debt Instrument [Line Items]
Mortgage amount		26,666,000		$ 11,925,000
Deferred Finance Costs		281,596
Mortgage prepayment penalties		476,180
NERA Dean Street Associates, LLC
Debt Instrument [Line Items]
Mortgage amount	10,322,000		5,687,000
Deferred Finance Costs	109,841
Mortgage prepayment penalties	160,943
School St Assoc LLC Residential Apartments Framingham, Massachusetts
Debt Instrument [Line Items]
Mortgage amount	26,993,000		13,178,000
Deferred Finance Costs	287,159
Mortgage prepayment penalties	171,676
Westgate Apartments LLC Residential Apartments Woburn, Massachusetts
Debt Instrument [Line Items]
Mortgage amount	4,494,000		2,500,000
Deferred Finance Costs	47,831
Mortgage prepayment penalties	100,211
Courtyard at Westgate
Debt Instrument [Line Items]
Mortgage amount	38,475,000		$ 15,700,000
Deferred Finance Costs	409,299
Mortgage prepayment penalties	401,714
Facility Agreement
Debt Instrument [Line Items]
Mortgage amount	80,284,000	156,000,000
Mortgage prepayment penalties	$ 834,000	$ 2,700,000