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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
Income (Loss) from Continuing Operations [Abstract]    
United States operations $ (12,567) $ (16,144)
Foreign operations (7,623) (6,643)
Income (loss) before income taxes $ (20,190) $ (22,787)