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Components Accounts Payable and Accrued Liabilities in Consolidated Balance Sheets (Detail) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Payables And Accruals [Abstract]    
Accounts payable - trade $ 1,978 $ 2,691
Accrued legal-related fees 54 854
Accrued employee compensation 651 2,082
Accrued interest 840 840
Accrued taxes payable 70 138
Short-term capital lease 147 144
Other accrued liabilities 963 727
Total accounts payable and accrued liabilities $ 4,703 $ 7,476