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Consolidated Condensed Statements Of Changes In Stockholders' Equity (Parenthetical) (USD $) In Thousands, except Per Share data | 9 Months Ended
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Sep. 30, 2011 | Sep. 30, 2010
Consolidated Condensed Statements Of Changes In Stockholders' Equity [Abstract] |  |
Unrealized net holding gain (loss) on cash flow hedge, tax | $ 187 | $ (149)
Unrealized net holding gain (loss) on securities available-for-sale, tax | $ 345 | $ (1,631)
Cash dividends on common stock per share | $ 2.82 | $ 2.82

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