LOANS RECEIVABLE AND OTHER INVESTMENTS - Schedule of Loans Receivable and Other Investments (Details) $ in Thousands	Mar. 31, 2016 USD ($) loan	Dec. 31, 2015 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	17
Loans Receivable, Principal Balance	$ 271,815
Loans Receivable, Book Value	$ 272,250	$ 274,484
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	9.80%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	9.70%
Loan loss allowance	$ (6,700)	(4,300)
Loans Receivable, Net Amount	$ 265,550	270,184
Preferred Equity Investment, Quantity | loan	10
Preferred Equity Investment, Principal Balance	$ 31,608	29,643
Preferred Equity Investment, Book Value	$ 31,958	29,993
Preferred Equity Investment, Weighted Average Contractual Interest Rate / Rate of Return	13.10%
Preferred Equity Investment, Weighted Average Annualized Effective Interest Rate / Rate of Return	13.10%
Total Investments, Quantity | loan	27
Total Investments, Principal Balance	$ 303,423
Total Investments, Book Value	$ 297,508	300,177
Total Investments, Weighted Average Contractual Interest Rate / Rate of Return	10.10%
Total Investments, Weighted Average Annualized Effective Interest Rate / Rate of Return	10.10%
Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	8
Loans Receivable, Principal Balance	$ 166,610
Loans Receivable, Book Value	$ 166,795	166,277
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	8.40%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	8.20%
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	4
Loans Receivable, Principal Balance	$ 75,380
Loans Receivable, Book Value	$ 75,526	75,201
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	14.00%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	13.90%
Mezzanine [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	1
Loans Receivable, Principal Balance	$ 9,640
Loans Receivable, Book Value	$ 9,672	15,613
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	11.00%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	10.80%
Pre-development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	3
Loans Receivable, Principal Balance	$ 3,767
Loans Receivable, Book Value	$ 3,839	3,768
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	9.00%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	7.70%
Debtor-in-possession [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	1
Loans Receivable, Principal Balance	$ 16,418
Loans Receivable, Book Value	$ 16,418	$ 13,625
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	5.00%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	5.00%