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Accumulated Other Comprehensive Loss (Summary Of Changes In Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance $ (2,667)  
Other comprehensive (loss) income (2,353) $ 1,886
Ending balance (5,020) (2,667)
Unrealized gains (losses) on available for sale securities [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance (3,041) (4,437)
Other comprehensive income (loss) before reclassification (2,349) 2,127
Amount reclassified from accumulated other comprehensive loss (168) (230)
Other comprehensive (loss) income (2,517) 1,897
Reclassification of certain income tax effects from other comprehensive loss   (501)
Ending balance (5,558) (3,041)
Unrealized gain (loss) on pension liability [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance 374 318
Other comprehensive income (loss) before reclassification 164 (11)
Other comprehensive (loss) income 164 (11)
Reclassification of certain income tax effects from other comprehensive loss   67
Ending balance 538 374
Accumulated Other Comprehensive Loss [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance (2,667) (4,119)
Other comprehensive income (loss) before reclassification (2,185) 2,116
Amount reclassified from accumulated other comprehensive loss (168) (230)
Other comprehensive (loss) income (2,353) 1,886
Reclassification of certain income tax effects from other comprehensive loss   (434)
Ending balance $ (5,020) $ (2,667)