LOANS RECEIVABLE AND OTHER INVESTMENTS - Schedule of Loans Receivable and Other Investments (Details) $ in Thousands	Mar. 31, 2017 USD ($) loan	Dec. 31, 2016 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	10
Loans Receivable, Principal Balance	$ 54,029
Loans Receivable, Book Value	$ 54,134	$ 53,596
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	9.40%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	9.10%
Loan loss reserve	$ (4,096)	(2,750)
Loans Receivable, Net Amount	$ 50,038	50,846
Preferred Equity Investment, Quantity | loan	12
Preferred Equity Investment, Principal Balance	$ 46,079	44,882
Preferred Equity Investment, Book Value	$ 46,451	45,190
Preferred Equity Investment, Weighted Average Contractual Interest Rate / Rate of Return	12.90%
Preferred Equity Investment, Weighted Average Annualized Effective Interest Rate / Rate of Return	12.90%
Total Investments, Quantity | loan	22
Total Investments, Principal Balance	$ 100,108
Total Investments, Book Value	$ 96,489	96,036
Total Investments, Weighted Average Contractual Interest Rate / Rate of Return	11.00%
Total Investments, Weighted Average Annualized Effective Interest Rate / Rate of Return	10.90%
Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	4
Loans Receivable, Principal Balance	$ 38,308
Loans Receivable, Book Value	$ 38,341	38,262
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	9.10%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	8.90%
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	1
Loans Receivable, Principal Balance	$ 1,301
Loans Receivable, Book Value	$ 1,351	842
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	8.00%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	7.70%
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	$ 9,653	9,656
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	$ 4,085
Loans Receivable, Book Value	$ 4,094	4,023
Loans Receivable, Weighted Average Contractual Interest Rate / Rate of Return	9.00%
Loans Receivable, Weighted Average Annualized Effective Interest Rate / Rate of Return	7.20%
Debtor-in-possession [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans Receivable, Quantity | loan	1
Loans Receivable, Principal Balance	$ 695
Loans Receivable, Book Value	$ 695	$ 813
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%