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Earnings Per Share (Reconciliation Of Basic And Diluted Earnings Per Share) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Earnings Per Share [Abstract]        
Net income available to common shareholders $ 3,931 $ 3,867 $ 11,685 $ 11,511
Weighted average common shares outstanding        
Basic 5,991,073 5,931,342 5,972,927 5,921,427
Effect of dilutive employee stock options and awards 75,757 52,581 81,667 44,147
Diluted 6,066,830 5,983,923 6,054,594 5,965,574
Anti-dilutive options excluded from earnings per share calculation 64,763 41,256 66,960 85,431
Per Common Share Data:        
Basic earnings per share $ 0.66 $ 0.65 $ 1.96 $ 1.94
Diluted earnings per share $ 0.65 $ 0.65 $ 1.93 $ 1.93