BONDS PAYABLE (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Series A Bonds [Member]
Bonds	$ 99,376	$ 106,686
Series B Bonds [Member]
Bonds	37,913	36,740
Series B Bonds Expansion [Member]
Bonds	19,906	19,290
Bonds [Member]
Bonds	157,195	162,716
Less: deferred issuance expense, net	(7,587)	(8,179)
Total outstanding bonds, net	149,608	154,537
Accrued Interest	1,857	4,037
Total oustanding bonds, net and accrued interest	$ 151,465	$ 158,574