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DISCONTINUED OPERATIONS - Revenue and Expenses (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Expenses:    
Income from operations of assets held for sale $ 0 $ 690
Held for sale    
DISCONTINUED OPERATIONS    
Revenue—Interest and other income   1,115
Expenses:    
Interest expense   288
Fees to related party   132
General and administrative   5
Total expenses   425
Income from operations of assets held for sale   $ 690