REAL ESTATE DEBT SECURITIES (Schedule of Investments in Debt Securities) (Details) $ in Thousands	Mar. 31, 2018 USD ($) investment	Dec. 31, 2017 USD ($)
Investments, Debt and Equity Securities [Abstract]
Number of debt investments | investment	1,000
Investment [Line Items]
Outstanding Principal Balance	$ 17,500	$ 17,500
Point Trust LLC | Series B Preferred Units
Investment [Line Items]
Outstanding Principal Balance	17,500
Book Value	$ 17,858	$ 17,751
Contractual Interest Rate	9.00%
Annualized Effective Interest Rate	11.10%