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Income Taxes (Schedule Of (Loss) Income Before Income Taxes) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Taxes [Abstract]      
Domestic $ (11,443) $ 6,369 $ 4,560
Foreign (5,731) (4,725) (10,951)
(Loss) income before income taxes $ (17,174) $ 1,644 $ (6,391)