INVESTMENTS (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Cash and Cash Equivalents [Member]
Schedule of Equity Method Investments [Line Items]
Assets	$ 59,320	$ 19,456
Real Estate and Related Assets [Member]
Schedule of Equity Method Investments [Line Items]
Assets	29,260	6,269
Other Assets [Member]
Schedule of Equity Method Investments [Line Items]
Net income (loss)	$ (2,773)	$ (422)