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SUPPLEMENTAL FINANCIAL INFORMATION - Schedule of Accounts Payable and Accrued Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Accounts payable $ 1,150 $ 3,561
Payroll liabilities 1,374 2,428
Other accrued liabilities 3,232 3,285
Accounts payable and accrued liabilities $ 5,756 $ 9,274