MORTGAGE NOTES PAYABLE (Mortgages Payable) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
MORTGAGE NOTES PAYABLE
Effective interest rate (as a percent)	3.97%
Financing fees, net	$ 154,000	$ 169,000
Accumulated amortization on financing and leasing fees	25,000	10,000
Annual maturities of mortgage debt
2023-current maturities	8,719,000
2024	31,306,000
2025	11,094,000
2026	21,904,000
2027	6,507,000
Thereafter	293,060,000
Total	372,590,000
Less: unamortized deferred financing costs	(2,619,000)
Secured Debt	369,970,778	370,481,390
Mortgages payable
MORTGAGE NOTES PAYABLE
Amount of monthly installments including principal	$ 1,431,000
Weighted average interest rate (as a percent)	3.61%
Effective interest rate (as a percent)	3.71%
Financing fees, net	$ 2,619,000	2,709,000
Accumulated amortization on financing and leasing fees	$ 1,229,000	$ 1,139,000
Mortgages payable | Minimum
MORTGAGE NOTES PAYABLE
Interest rate (as a percent)	2.97%
Mortgages payable | Maximum
MORTGAGE NOTES PAYABLE
Interest rate (as a percent)	4.95%