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Disclosures About Fair Value of Assets and Liabilities (Details Textual) (USD $) In Millions, unless otherwise specified | Sep. 30, 2012 | Dec. 31, 2011
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Disclosures About Fair Value of Assets and Liabilities (Textual) [Abstract] |  |
Fair value adjustments on impaired loans | $ 2.5 | $ 2.1

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- Definition Fair value adjustments on impaired loans. + References No definition available. + Details
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