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Income Taxes - Schedule of Domestic and Foreign Components of Loss Before Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax Disclosure [Abstract]      
Domestic $ (1,875) $ 6,259 $ 4,477
Foreign 1,344 982 142
(Loss) income before income taxes $ (531) $ 7,241 $ 4,619