MORTGAGE NOTES PAYABLE (Mortgages Payable) (Details) - USD ($)	6 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
MORTGAGE NOTES PAYABLE
Effective interest rate (as a percent)	4.28%
Financing fees, net	$ 80,000	$ 109,000
Accumulated amortization on financing and leasing fees	100,000	70,000
Annual maturities of mortgage debt
2024-current maturities	3,062,000
2025	3,578,000
2026	21,957,000
2027	6,620,000
2028	23,220,000
Thereafter	354,367,000
Total	412,804,000
Less: unamortized deferred financing costs	2,969,000
Outstanding amount of mortgage	409,834,512	410,966,199
Mortgages payable
MORTGAGE NOTES PAYABLE
Amount of monthly installments including principal	$ 1,523,000
Weighted average interest rate (as a percent)	3.68%
Effective interest rate (as a percent)	3.78%
Financing fees, net	$ 2,969,000	3,159,000
Accumulated amortization on financing and leasing fees	$ 1,163,000	$ 973,000
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%