MORTGAGE LOANS, NET (Details 4) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Movement in Mortgage Loans On Real Estate Principal Amount [Roll Forward]
Principal Outstanding, Beginning Balances	$ 12,601	$ 23,592
Principal Outstanding, Additions:
Interest adjustment	258
Principal Outstanding, Reductions:
Sale of mortgage loans		3,148
Principal Outstanding, Ending Balances	31,820	12,601
Accrued Interest Receivable , Additions:
Interest adjustment	0
Accrued Interest Receivable, Reductions :
Sale of mortgage loans		139
Movement in Allowance for Loan and Lease Losses, Real Estate [Roll Forward]
Valuation Allowance, Begining Balances	(12,682)	(12,892)
Valuation Allowance, Additions:
Interest adjustment	0
Valuation Allowance, Reductions:
Sale of mortgage loans		0
Valuation Allowance, Ending Balances	(12,682)	(12,682)
Movement in Mortgage Loans on Real Estate [Roll Forward]
Mortgage Loans, Beginning Balances, Carrying Value	378	11,147
Net Carrying Value, Reductions :
Sale of mortgage loans		3,287
Mortgage Loans, Ending Balances, Carrying Value	$ 19,668	$ 378