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Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Schedule Of Capitalization Longterm Debt [Line Items]    
Total long-term debt (including current portion) $ 25,860 $ 26,978
Less: Current portion (886) (855)
Total long-term debt 24,974 26,123
2021 Consolidated Loan [Member]    
Schedule Of Capitalization Longterm Debt [Line Items]    
Term note to bank due May 30, 2021 25,860 26,978
Total long-term debt (including current portion) $ 25,860 $ 26,978