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Debt - Maturities of Outstanding Debt (Detail) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
[1]
Debt Disclosure [Abstract]    
2015 $ 842  
2016 1,099  
2017 472  
2018 500  
2019 307  
Total 3,220  
Less:    
Current portion (1,826) $ (2,587)
Discount on long-term debt (48)  
Noncurrent portion of debt $ 1,346 $ 621
[1] Derived from our audited consolidated financial statements as of December 31, 2014.