Accounting for Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value of Option on Date of Grant

The following assumptions were used for options issued in the following periods:

	2012			2011			2010
Expected volatility		47	%		49 - 55	%		48	%
Weighted average expected volatility		47	%		55	%		48	%
Expected lives		3 yrs.			3 - 5 yrs.			5 yrs.
Risk-free interest rate		0.43	%		0.37 - 0.94	%		2.69	%
Expected dividend yield		none			none			none

Summarizes Stock Option Activity

The following table summarizes stock option activity during the three year period ended December 31, 2012:

Options	Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at December 31, 2009		2,508,828		$	5.71
Granted		198,343			9.29
Exercised		(548,331	)		4.46
Forfeited		(26,334	)		9.26
Outstanding at December 31, 2010		2,132,506		$	6.34		7.06	$	8,444
Granted		609,642			12.31
Exercised		(571,964	)		5.88
Forfeited		(6,359	)		5.66
Outstanding at December 31, 2011		2,163,825		$	8.12		6.74	$	15,408
Granted		160,000			12.88
Exercised		(176,896	)		4.46
Forfeited		(17,000	)		4.05
Outstanding at December 31, 2012		2,129,929		$	8.82		6.99	$	5,640
Exercisable at December 31, 2010		1,257,858		$	7.20		6.20	$	3,902
Exercisable at December 31, 2011		1,222,959		$	7.23		6.07	$	9,831
Exercisable at December 31, 2012		1,520,720		$	7.57		6.20	$	5,966