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Earnings per Common Share (Tables) | 12 Months Ended
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Dec. 31, 2012
Risks and Uncertainties [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | A reconciliation of the numerators and denominators of the basic earnings per common share and diluted earnings per common share computations for 2012 and 2011 is presented below.
|  | 2012 |  |  | 2011 |
Basic earnings per common share: |  |  |  |  |  |  |  |
Net income available to common stockholders |  | $ | 6,852,915 |  |  | $ | 5,384,982 |
Weighted-average common shares outstanding |  |  | 2,839,719 |  |  |  | 2,832,161 |
Basic earnings per common share |  | $ | 2.41 |  |  | $ | 1.90 |
Diluted earnings per common share: |  |  |  |  |  |  |  |
Net income available to common stockholders |  | $ | 6,852,915 |  |  | $ | 5,384,982 |
Weighted-average common shares outstanding |  |  | 2,839,719 |  |  |  | 2,832,161 |
Weighted-average common and dilutive potential common shares outstanding |  |  | 2,839,719 |  |  |  | 2,832,161 |
Diluted earnings per common share |  | $ | 2.41 |  |  | $ | 1.90 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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