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Income Tax - Components of Loss Before Continuing Operations (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]    
Domestic $ 1,094 $ (12,001)
Foreign (744) (601)
Income / (loss) before provision for income taxes $ 350 $ (12,602)