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Income Taxes - Income (Loss) From Continuing Operations Before Income Tax (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract]    
United States $ (22,452) $ (12,828)
Foreign 2,440 1,730
Loss from continuing operations before income tax (benefit) expense $ (20,012) $ (11,098)