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Summary of Significant Accounting Policies (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 18, 2010 | Dec. 31, 2012 Segment | Dec. 31, 2011 | Dec. 31, 2010
Summary of Significant Accounting Policies (Textual) [Abstract] |  |  |  |
Number of reportable operating segment |  | 1 |  |
Maturity period of Interest bearing deposits in other financial institutions |  | 1 year |  |
Period of Delinquent loan |  | 90 days |  |
Loss history of portfolio segment determination period |  | 2 years |  |
Advertising costs |  | $ 859 | $ 822 | $ 795
Number of common stock shares issued | 3,365,853,000 | 12,599,603 | 12,599,603 |
Common stock issue price per share | $ 10.25 |  |  |
Net of issuance costs | 32,128 |  |  | 32,128
Number of nonqualified options or restricted stock for key employees and independent director |  | 500,000,000 |  |
Unrecognized compensation cost related to nonvested stock options granted under this plan |  | 0 | 0 |
Stock options, granted |  | 0 | 0 |
Shares granted by Executive Compensation and Personnel Committee of the Board of Directors |  | 26,900 | 17,900,000 | 16,500,000
Compensation expense restricted stock awards |  | 277 | 213 | 205
Description of award terms |  | For key employees, the plan vesting schedule is one-fourth of granted stock-based awards per year beginning one year after the grant date with 100% vested on the fourth anniversary. For independent directors, the vesting schedule is one-third of granted stock-based awards per year beginning one year after the grant date with 100% vested on the third anniversary. |  |
Average amount of non interest bearing reserve with federal reserve bank |  | $ 50 | $ 50 |
Independent Directors [Member] |  |  |  |
Summary of Significant Accounting Policies (Additional Textual) [Abstract] |  |  |  |
Starting period of Vesting of stock based award |  | 1 year |  |
Aggregate percentage of stock based awards to be matured |  | 100.00% |  |
Key Employees [Member] |  |  |  |
Summary of Significant Accounting Policies (Additional Textual) [Abstract] |  |  |  |
Starting period of Vesting of stock based award |  | 1 year |  |
Aggregate percentage of stock based awards to be matured |  | 100.00% |  |
Minimum [Member] |  |  |  |
Summary of Significant Accounting Policies (Additional Textual) [Abstract] |  |  |  |
Period of Consumer loans charged off |  | 180 days |  |
Percentage of tax benefit realized |  | 50.00% |  |
Premises and Equipment [Member] | Maximum [Member] |  |  |  |
Summary of Significant Accounting Policies (Additional Textual) [Abstract] |  |  |  |
Useful lives of Premises and equipment |  | 39 years |  |
Premises and Equipment [Member] | Minimum [Member] |  |  |  |
Summary of Significant Accounting Policies (Additional Textual) [Abstract] |  |  |  |
Useful lives of Premises and equipment |  | 3 years |  |
Furniture, fixtures and equipment [Member] | Maximum [Member] |  |  |  |
Summary of Significant Accounting Policies (Additional Textual) [Abstract] |  |  |  |
Useful lives of Premises and equipment |  | 10 years |  |
Furniture, fixtures and equipment [Member] | Minimum [Member] |  |  |  |
Summary of Significant Accounting Policies (Additional Textual) [Abstract] |  |  |  |
Useful lives of Premises and equipment |  | 3 years |  |
Buildings and Building Improvements [Member] | Maximum [Member] |  |  |  |
Summary of Significant Accounting Policies (Additional Textual) [Abstract] |  |  |  |
Useful lives of Premises and equipment |  | 39 years |  |
Buildings and Building Improvements [Member] | Minimum [Member] |  |  |  |
Summary of Significant Accounting Policies (Additional Textual) [Abstract] |  |  |  |
Useful lives of Premises and equipment |  | 15 years |  |

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