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COMMITMENTS AND CONTINGENCIES - Additional Information (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 19 Months Ended
Jun. 08, 2015
Nov. 21, 2013
May 31, 2016
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Jun. 08, 2015
Dec. 31, 2015
Schedule of Investments [Line Items]                  
Deferred rent payable       $ 84   $ 84     $ 80
Rent expense       202 $ 175 398 $ 287    
Rental income       86 $ 0 172 0    
Cash investments           250 $ 0    
Venture Capital Funds                  
Schedule of Investments [Line Items]                  
Capital commitment   $ 5,000   $ 3,000   $ 3,000      
Percentage of limited partnership interest   10.00%              
Cash distribution $ 800                
Gross entitlement 1,300                
Remainder of gross entitlement reinvested 500                
Cash investments     $ 300         $ 2,000  
Total investment $ 2,500             $ 2,500