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Consolidated Statements of Changes in Stockholders' Equity (USD $)
In Thousands
Common Stock [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Total
Balance at Dec. 31, 2010 $ 8,667 $ 123,161 $ (2,641) $ 129,187
Net income   17,638   17,638
Other comprehensive income (loss), net of tax     1,320 1,320
Cash dividend   (6,938)   (6,938)
Exercise of stock options 8 84   92
Balance at Dec. 31, 2011 8,675 133,945 (1,321) 141,299
Net income   17,747   17,747
Other comprehensive income (loss), net of tax     (1,417) (1,417)
Cash dividend   (7,639)   (7,639)
Exercise of stock options 10 109   119
Balance at Dec. 31, 2012 8,685 144,162 (2,738) 150,109
Net income   17,790   17,790
Other comprehensive income (loss), net of tax     (14,226) (14,226)
Cash dividend   (7,781)   (7,781)
Balance at Dec. 31, 2013 $ 8,685 $ 154,171 $ (16,964) $ 145,892