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Consolidated Statements Of Changes In Stockholders' Equity (Parenthetical) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2011 | Dec. 31, 2010
Consolidated Statements Of Changes In Stockholders' Equity [Abstract] |  |
Unrealized gains on securities available-for-sale, deferred tax | $ 731 | $ 24
Reclassification adjustment for gains included in net income, income tax expense, tax | $ 402 | $ 121
Stock dividend shares, percentage |  | 10.00%

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