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Income Taxes (Schedule Of Income Tax Expense) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Taxes [Abstract]      
Current: Federal $ 402 $ 521 $ 3,948
Current: State 246 110 626
Current: Foreign 2,009 460 353
Current: Income tax expense 2,657 1,091 4,927
Deferred: Federal (2,188) (714) 2,836
Deferred: State (154) 70 (9)
Deferred: Foreign (3,866) (590) (120)
Deferred: Income tax expense (6,208) (1,234) 2,707
Income tax (benefit) expense $ (3,551) $ (143) $ 7,634