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Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2012
Other intangible assets [Abstract] |
Changes in the carrying amount of core deposit intangibles |
|  | 2012 |  |  | 2011 |
Core Deposit Intangible: |  |  |  |  |  |  |  |
Balance as of January 1, |  | $ | 38,196 |  |  | $ | 53,208 |
Amortization expense |  |  | 6,962 |  |  |  | 15,012 |
Asset disposal |  |  | 31,234 |  |  |  | — |
Balance as of December 31, |  |  | — |  |  |  | 38,196 |
Total other intangible assets |  | $ | — |  |  | $ | 38,196 |

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- Definition Tabular disclosure of changes to core deposits finite lived intangible assets. + References No definition available. + Details
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