BONDS PAYABLE (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Total	$ 143,897	$ 113,047
Series A Bonds [Member]
Bonds	109,552	115,336
Series B Bonds [Member]
Bonds	37,726
Bonds [Member]
Less: deferred issuance expense, net	(7,210)	(5,916)
Accrued Interest	3,829	3,627
Total	$ 143,897	$ 113,047