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Commitments and Contingencies (Details Textual) (USD $) | Sep. 30, 2012 | Dec. 31, 2011
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Commitments and Contingencies (Textual) [Abstract] |  |
Commitments to extend credit including availability on lines of credit | $ 190,070,000 | $ 194,270,000
Gross notional amounts of outstanding commitments | 14,750,000 | 9,150,000
Standby letters of credit and financial guarantees | 4,860,000 | 2,900,000
Reserve for unfunded lending commitments | 326,000 | 329,000
Trust preferred securities | $ 15,000,000 |

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