BUSINESS, BASIS OF PRESENTATION AND LIQUIDITY (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended	12 Months Ended		68 Months Ended
	Feb. 09, 2018	Oct. 02, 2017	Mar. 28, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2008	Dec. 31, 2015	Jun. 18, 2010
Business, Basis of Presentation and Liquidity [Line Items]
Amount Of Fund Raised In Equity Capital						$ 875,000
Percentage of Membership Units of Fund Approved the Fund to be Internally Managed								89.00%
Accumulated Deficit				$ 679,535	$ 678,778
Proceeds from sale of REO				104,856	44,579
Cash and cash equivalents				11,789	9,702
Real Estate Acquired through Foreclosure				64,641	122,072		$ 152,867
Mortgage loans, net				19,668	378
Cash payment				36,000	$ 0
Increase in noncontrolling interest due to contributions				$ 725
Redeemable Convertible Preferred Stock, shares issued				8,200,000	8,200,000
Redeemable Convertible Preferred Stock, par value (in dollars per share)				$ 0.01	$ 0.01
Preferred distribution rate				8.00%
Operating Properties [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Proceeds from sale of REO				$ 57,900
Real Estate Acquired through Foreclosure				20,484	$ 0		116,156
Held For Sale [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Real Estate Acquired through Foreclosure				5,853	17,837		5,346
Other Real Estate Owned [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Proceeds from sale of REO					44,200
Real Estate Acquired through Foreclosure				38,304	$ 15,501		$ 27,701
MacArthur Loan [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Proceeds from issuance of debt		$ 32,300
Hotel [Member] | MacArthur Place [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Payments to acquire hotel		36,000
Hotel [Member] | MacArthur Place [Member] | MacArthur Loan [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Proceeds from issuance of debt		19,400
Cash payment		$ 17,400
Debt Instrument, Repayment Guaranty		50.00%
Required minimum net worth		$ 50,000
Required minimum liquidity		5,000
Hotel Improvements [Member] | MacArthur Place [Member] | MacArthur Loan [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Proceeds from issuance of debt		$ 10,000
Preferred Interests [Member] | L’Auberge Fund Manager, LLC [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Proceeds from private offering				25,000
Private offering acquired				$ 17,800
Ownership percentage by fund manager				10.00%
Increase in noncontrolling interest due to contributions				$ 700
Preferred distribution rate				7.00%
Subsequent Event [Member] | Preferred Interests [Member] | L’Auberge Fund Manager, LLC [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Proceeds from private offering			$ 4,200
JPMorgan Chase Funding Inc. [Member] | Subsequent Event [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Warrant, authorized issuance	600,000
Warrant, period	2 years
Warrant, exercise price per share (in USD per share)	$ 2.25
Series B-3 Cumulative Convertible Preferred Stock [Member] | Subsequent Event [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Redeemable Convertible Preferred Stock, par value (in dollars per share)	$ 0.01
Preferred distribution rate	5.65%
Series B-3 Cumulative Convertible Preferred Stock [Member] | JPMorgan Chase Funding Inc. [Member] | Subsequent Event [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Redeemable Convertible Preferred Stock, shares issued	2,352,941
Series B-1 Cumulative Convertible Preferred Stock [Member] | Subsequent Event [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Redeemable Convertible Preferred Stock, par value (in dollars per share)	$ 0.01
Series B Preferred Stock [Member] | JPMorgan Chase Funding Inc. [Member] | Subsequent Event [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Stock issued (in usd per share)	$ 3.40
Preferred stock, purchase price, value	$ 8,000