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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Hamilton Minuteman) (Details)			1 Months Ended			9 Months Ended
	Oct. 13, 2016 USD ($)	Oct. 12, 2016 USD ($)	Jan. 31, 2007 USD ($)	Oct. 31, 2004 USD ($)	Sep. 30, 2004 USD ($) item	Sep. 30, 2020 USD ($) property	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Investments in joint venture						$ 1,439,697		$ 1,430,402
Distribution to the Partnership						3,506,894	$ 3,525,701
Amount of mortgage paid off		$ 5,158,000
Refinancing costs						1,405,000
Outstanding amount of mortgage						$ 283,927,890		$ 281,771,246
Hamilton Minuteman
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Investments in joint venture					$ 5,075,000
Ownership interest (as a percent)					50.00%		50.00%
Number of units					42	42	42
Purchase price of real estate properties					$ 10,100,000
Distribution to the Partnership	$ 385,000			$ 3,775,000
Mortgage amount		$ 6,000,000	$ 5,500,000	$ 8,025,000		$ 6,000,000
Term of debt		15 years	10 years	10 years
Refinancing costs	$ 123,000					89,678
Interest rate (as a percent)		3.71%	5.67%
Period for which the entity is required to make interest only payments			5 years
Amortization period of debt			30 years
Cash contribution by the entity towards loan			$ 1,250,000
Outstanding amount of mortgage						$ 5,910,322	$ 5,902,139
Residential buildings | Hamilton Minuteman
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Number of units						42	42

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