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Description of Business and Summary of Significant Accounting Policies (Details Textual) | 12 Months Ended
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Dec. 31, 2012 Reporting
Description of Business and Summary of Significant Accounting Policies (Textual) [Abstract] |
Core deposit intangibles are amortized on a straight-line basis over the estimated useful lives | 7 years
Description of Business and Summary of Significant Accounting Policies (Additional Textual) [Abstract] |
Days from origination after which mortgage loan are sold | 30 days
Loan upon which a default of principal or interest has existed for a period | 90 days
Number of reporting units without carrying amounts | 0
Core deposit intangibles [Member] |
Description of Business and Summary of Significant Accounting Policies (Textual) [Abstract] |
Core deposit intangibles are amortized on a straight-line basis over the estimated useful lives | 6 years
Customer relationship intangibles [Member] |
Description of Business and Summary of Significant Accounting Policies (Textual) [Abstract] |
Core deposit intangibles are amortized on a straight-line basis over the estimated useful lives | 11 years 1 month 6 days
Minimum [Member] | Core deposit intangibles [Member] |
Description of Business and Summary of Significant Accounting Policies (Textual) [Abstract] |
Core deposit intangibles are amortized on a straight-line basis over the estimated useful lives | 7 years
Minimum [Member] | Customer relationship intangibles [Member] |
Description of Business and Summary of Significant Accounting Policies (Textual) [Abstract] |
Core deposit intangibles are amortized on a straight-line basis over the estimated useful lives | 12 years
Maximum [Member] | Core deposit intangibles [Member] |
Description of Business and Summary of Significant Accounting Policies (Textual) [Abstract] |
Core deposit intangibles are amortized on a straight-line basis over the estimated useful lives | 10 years
Maximum [Member] | Customer relationship intangibles [Member] |
Description of Business and Summary of Significant Accounting Policies (Textual) [Abstract] |
Core deposit intangibles are amortized on a straight-line basis over the estimated useful lives | 18 years

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- Definition Period for sale of mortgage loan from origination. + References No definition available. + Details
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- Definition Period of default of principal or interest upon loan. + References No definition available. + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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