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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2012
Earnings Per Share [Abstract] |
Schedule of Net income per share | Net income per share calculation information is as follows:
|  | Year ended December 31, |
|  | 2011 |  |  | 2012 |
Net income |  | $ | 10,100,325 |  |  | $ | 11,031,270 |
Weighted-average shares outstanding: |  |  |  |  |  |  |  |
Basic |  |  | 22,593,327 |  |  |  | 22,667,102 |
Effect of dilutive securities: |  |  |  |  |  |  |  |
Stock options |  |  | — |  |  |  | — |
Restricted stock |  |  | 92,334 |  |  |  | 81,860 |
Diluted |  |  | 22,685,661 |  |  |  | 22,748,962 |
Net income per basic share |  | $ | 0.45 |  |  | $ | 0.49 |
Net income per diluted share |  | $ | 0.45 |  |  | $ | 0.48 |

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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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