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Earnings Per Share (Tables)

12 Months Ended

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.

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