MORTGAGE NOTES PAYABLE (Mortgages Payable) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
MORTGAGE NOTES PAYABLE
Effective interest rate (as a percent)	5.06%
Financing fees, net	$ 16,000	$ 28,000
Accumulated amortization on financing and leasing fees	125,000	113,000
Annual maturities of mortgage debt
2017-current maturities	1,784,000
2018	7,863,000
2019	4,312,000
2020	1,965,000
2021	2,471,000
Thereafter	195,305,000
Total	213,700,000
Less: unamortized deferred financing costs	(1,378,000)
Secured Debt	212,322,196	212,709,080
Mortgages payable
MORTGAGE NOTES PAYABLE
Amount of monthly installments including principal	$ 976,000
Weighted average interest rate (as a percent)	4.63%
Effective interest rate (as a percent)	4.72%
Financing fees, net	$ 1,395,000	1,454,000
Accumulated amortization on financing and leasing fees	$ 1,120,000	$ 1,061,000
Mortgages payable | Minimum
MORTGAGE NOTES PAYABLE
Interest rate (as a percent)	2.80%
Mortgages payable | Maximum
MORTGAGE NOTES PAYABLE
Interest rate (as a percent)	5.97%