BUSINESS, BASIS OF PRESENTATION AND LIQUIDITY (Details Textual) $ / shares in Units, $ in Thousands				1 Months Ended		3 Months Ended		12 Months Ended		68 Months Ended
	May 31, 2018 USD ($) $ / shares shares	Feb. 09, 2018 USD ($) $ / shares shares	Oct. 02, 2017 USD ($)	Mar. 31, 2019 USD ($)	Nov. 30, 2017 USD ($)	Apr. 01, 2019 USD ($)	Dec. 31, 2017 USD ($) hotel_room	Dec. 31, 2018 USD ($) asset	Dec. 31, 2017 USD ($)	Dec. 31, 2008 USD ($)	Oct. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2014 USD ($) shares	Jun. 18, 2010
Business, Basis of Presentation and Liquidity [Line Items]
Amount of Fund equity capital raised										$ 875,000
Percentage of membership units of Fund which approved the Fund to be internally managed														89.00%
Accumulated deficit							$ 679,535	$ 692,876	$ 679,535
Proceeds from sale of REO								8,692	104,856
Cash and cash equivalents							11,789	25,452	11,789
REO assets acquired through foreclosure							64,641	$ 75,011	64,641			$ 122,072
Operating Properties [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Number of REO assets sold | asset								3
Proceeds from sale of REO								$ 8,700
REO assets acquired through foreclosure							20,484	33,866	20,484			88,734
Held For Sale [Member]
Business, Basis of Presentation and Liquidity [Line Items]
REO assets acquired through foreclosure							5,853	7,418	5,853			17,837
Other Real Estate Owned [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Proceeds from sale of REO									104,900
REO assets acquired through foreclosure							$ 38,304	33,727	38,304			$ 15,501
MacArthur Loan [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Proceeds from issuance of debt			$ 32,300					$ 1,100	200
Exchange Offering Notes [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Debt amount													$ 10,200
Hotel [Member] | MacArthur Loan [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Debt amount											$ 32,300
Hotel [Member] | MacArthur Place [Member] | MacArthur Loan [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Number of hotel rooms | hotel_room							64
Proceeds from issuance of debt			$ 19,400
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]
Preferred distribution rate								7.00%
Proceeds from private offering					$ 25,000			$ 15,000
Private offering acquired									17,800
Subsequent Event [Member] | Hotel [Member] | MacArthur Loan [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Debt amount				$ 37,000
Subsequent Event [Member] | Hotel [Member] | MacArthur Place [Member] | MacArthur Loan [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Required minimum liquidity				37,000
Reserve accounts				$ 2,000
Subsequent Event [Member] | Preferred Interests [Member] | L’Auberge Fund Manager, LLC [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Proceeds from private offering						$ 21,000
JPMorgan Chase Funding Inc. [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Warrant, authorized issuance | shares		600,000
Warrant, period		2 years
Warrant, exercise price per share (in USD per share) | $ / shares		$ 2.25
Series B-3 Cumulative Convertible Preferred Stock [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Preferred distribution rate		5.65%						5.65%
Preferred stock redemption price								145.00%
Series B-3 Cumulative Convertible Preferred Stock [Member] | JPMorgan Chase Funding Inc. [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Redeemable convertible preferred stock, shares issued | shares		2,352,941
Series A Preferred Stock [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Preferred distribution rate								7.50%
Series A Preferred Stock [Member] | JPMorgan Chase Funding Inc. [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Redeemable convertible preferred stock, shares issued | shares	22,000
Redeemable convertible preferred stock, par value (in dollars per share) | $ / shares	$ 0.01
Price of stock issued (in usd per share) | $ / shares	$ 1,000
Preferred stock, purchase price, value	$ 22,000
Preferred distribution rate	7.50%
Series B-1 Cumulative Convertible Preferred Stock [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Redeemable convertible preferred stock, par value (in dollars per share) | $ / shares		$ 0.01
Series B Preferred Stock [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Preferred stock redemption price								150.00%
Accrued and unpaid dividends, percentage								160.00%
Series B Preferred Stock [Member] | JPMorgan Chase Funding Inc. [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Price of stock issued (in usd per share) | $ / shares		$ 3.40
Preferred stock, purchase price, value		$ 8,000
Series B-1 and B-2 Cumulative Convertible Preferred Stock [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Redeemable convertible preferred stock, shares issued | shares													8,200,000
Preferred distribution rate								8.00%
Preferred stock redemption price								150.00%
Preferred stock, redemption amount							$ 11,600	$ 39,600	$ 11,600
Series B-1 and B-2 Cumulative Convertible Preferred Stock [Member] | Subsequent Event [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Preferred stock redemption price				160.00%
Commitment to Fund Equity [Member] | Hotel [Member] | MacArthur Loan [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Commitment to provide funds											$ 17,400
Commitment to Fund Equity [Member] | Subsequent Event [Member] | Hotel [Member] | MacArthur Loan [Member]
Business, Basis of Presentation and Liquidity [Line Items]
Commitment to provide funds				$ 27,700