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Income Taxes - Components of Income (Loss) Before Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
Domestic $ 1,994 $ (10,552) $ (11,089)
Foreign 2,177 3,565 (5,184)
Income (loss) before income taxes $ 4,171 $ (6,987) $ (16,273)