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Consolidated Statements Of Changes In Shareholders' Equity - USD ($)
$ in Thousands
Capital Stock [Member]
Surplus [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Treasury Stock [Member]
Total
Balance at Dec. 31, 2013 $ 9,051 $ 25,085 $ 103,907 $ (7,940) $ (8,724) $ 121,379
Net income     11,511     11,511
Total other comprehensive income       11,768   11,768
Dividend declared:            
Common stock     (3,967)     (3,967)
Purchase of treasury stock         (8) (8)
Stock options exercised, including related tax effects   27 (9)   417 435
Three-for-two stock split 4,526 (4,526)        
Recognition of stock based compensation expense   236       236
Restricted stock grants   (53)     53  
Balance at Sep. 30, 2014 13,577 20,769 111,442 3,828 (8,262) 141,354
Balance at Dec. 31, 2014 13,577 20,905 113,149 6,691 (8,035) 146,287
Net income     11,685     11,685
Total other comprehensive income       (732)   (732)
Dividend declared:            
Common stock     (4,480)     (4,480)
Purchase of treasury stock         (24) (24)
Stock options exercised, including related tax effects   118 (2)   773 889
Recognition of stock based compensation expense   487       487
Restricted stock grants   (106)     106  
Balance at Sep. 30, 2015 $ 13,577 $ 21,404 $ 120,352 $ 5,959 $ (7,180) $ 154,112