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Loans (Details Textual) (USD $) In Millions, unless otherwise specified | Sep. 30, 2012 | Dec. 31, 2011 | Sep. 30, 2011
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Loans (Textual) [Abstract] |  |  |
Total outstanding balance of acquired impaired loans | $ 0 | $ 7.71 | $ 7.75

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- Definition Outstanding balance of acquired impaired loans. + References No definition available. + Details
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