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Income Taxes (Reconciliatoin Of The Unrecognized Tax Benefits Rollforward) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Reconciliation of the beginning and ending balance of unrecognized tax benefits    
Beginning balance $ 1,889 $ 1,847
Additions for current year tax positions 184 325
Additions for prior year tax positions 241 226
Decreases related to lapse of applicable statute of limitation (503) (509)
Ending balance $ 1,811 $ 1,889