Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2013

Stock-Based Compensation [Abstract]

Summary of the activity in the Company's stock option plan

	Number of Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at December 31, 2012		280,000		$	2.91		4.9 years	$	5,007
Outstanding at March 31, 2013		280,000			2.91		4.7 years	$	6,816
Exercisable at March 31, 2013		260,000		$	2.65		4.4 years	$	6,397
Outstanding at December 31, 2011		620,000		$	2.97		5.7 years	$	3,122
Exercised		(217,003	)		3.33
Outstanding at March 31, 2012		402,997			2.78		5.5 years	$	3,997
Exercisable at March 31, 2012		369,797		$	2.50		5.2 years	$	3,772

Information about options exercised

	Three Months Ended March 31,
	2013		2012
Options exercised		—		217,003
Total intrinsic value of exercised options		n/a	$	1,470,101
Tax benefits realized		n/a	$	437,000

Information with respect to unvested restricted stock awards Stock Option and Incentive Plan

	Number of Restricted Stock Awards			Weighted Average Grant Date Fair Value
Nonvested at December 31, 2012		246,320		$	14.54
Forfeited		(920	)
Nonvested at March 31, 2013		245,400		$	14.51