INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Hamilton Bay Apts and Sales) (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Investments in joint venture	$ 1,418,974	$ 1,410,769
Outstanding amount of mortgage	$ 281,919,669	$ 283,444,533
Mortgages payable \| Minimum
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Interest rate (as a percent)	3.53%
Mortgages payable \| Maximum
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Interest rate (as a percent)	5.66%

Contractual interest rate for funds borrowed, under the debt agreement.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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