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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     14,613     14,613
Total other comprehensive (loss) income       14,631   14,631
Dividend declared:            
Common stock     (5,362)     (5,362)
Purchase of Treasury Stock         (8) (8)
Net issuance of shares to employee stock plans, including tax benefit   (184) (9)   697 504
Three-for-two stock split 4,526 (4,526)        
Recognition of stock based compensation expense   530       530
Balance at Dec. 31, 2014 13,577 20,905 113,149 6,691 (8,035) 146,287
Net income     15,153     15,153
Total other comprehensive (loss) income       (3,062)   (3,062)
Dividend declared:            
Common stock     (6,040)     (6,040)
Purchase of Treasury Stock         (24) (24)
Net issuance of shares to employee stock plans, including tax benefit   (97) (2)   1,121 1,022
Recognition of stock based compensation expense   816       816
Balance at Dec. 31, 2015 13,577 21,624 122,260 3,629 (6,938) 154,152
Net income     14,933     14,933
Total other comprehensive (loss) income       (7,955)   (7,955)
Dividend declared:            
Common stock     (6,577)     (6,577)
Purchase of Treasury Stock         (497) (497)
Net issuance of shares to employee stock plans, including tax benefit   125 (127)   1,408 1,406
Recognition of stock based compensation expense   1,278       1,278
Balance at Dec. 31, 2016 $ 13,577 $ 23,027 $ 130,489 $ (4,326) $ (6,027) $ 156,740