Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

Stock-Based Compensation

Schedule of amounts recognized in the consolidated financial statements related to stock-based compensation

	Three Months EndedSeptember 30,						Nine Months EndedSeptember 30,
	2012			2011			2012			2011
Total cost of stock-based compensation	$	116,595		$	97,378		$	350,978		$	291,873
Amount of income tax benefit recognized in earnings	(16,897		)	(11,009		)	(62,820		)	(83,593		)
Amount charged against net income	$	99,698		$	86,369		$	288,158		$	208,280

Summary of the option activity

	Number of Shares		Weighted Average Exercise Price per Share		WeightedAverage Remaining Contractual Term	Aggregate Intrinsic Value
Outstanding at December 31, 2011	829,786		$	11.05	4.1	$	4,108,291
Options granted	—		—		—
Options cancelled/expired	(7,225	)	$	15.49	—
Options exercised	(49,074	)	$	10.06	—
Outstanding at September 30, 2012	773,487		$	11.07	3.4	$	3,050,041
Exercisable at September 30, 2012	617,242		$	10.37	2.8	$	2,794,460

Summary of status of unvested option shares

	Number of Shares		WeightedAverage Grant Date Fair Value
Unvested at December 31, 2011	204,225		$	4.00
Options granted	—		—
Options cancelled	(7,100	)	$	4.57
Options vested	(40,880	)	$	4.82
Unvested at September 30, 2012	156,245		$	2.77