Stockholders' Equity and Stock-Based Compensation Stockholders' Equity and Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2011

Stockholders' Equity and Stock-Based Compensation [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

A summary of all stock option activity as of December 31, 2011 and changes during the year ended is presented below.

	Number of shares		Weighted-avg. exercise price per share		Weighted-avg. remaining contractual life
Options outstanding at January 1, 2011	867,022		$	4.20
Granted	73,834		14.50
Exercised	(121,722	)	4.34
Forfeited	(6,000	)	6.45
Expired	—		—
Options outstanding at December 31, 2011	813,134		$	5.10	4.0 years
Options exercisable at December 31, 2011	721,022		$	4.26	3.4 years

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The fair value of each stock option grant under the Company's stock option plan was estimated on the date of grant using the Black Scholes option-pricing model with the following weighted average assumptions and results for fiscal 2011, 2010 and 2009.

Weighted Average	2011	2010	2009
Expected dividend yield	0.0%	0.0%	0.0%
Risk-free interest rate	2.53%	2.73%	2.31%
Expected term	5.75 years	5.77 years	5.80 years
Expected volatility	61.1%	60.2%	58.4%
Fair value of options granted	$8.26	$4.80	$1.76

Schedule of Nonvested Share Activity [Table Text Block]

A summary of the Company’s non-vested stock awards as of December 31, 2011, and changes during the year ended is as follows:

	Non-Vested Shares		Weighted Average Grant Date Fair Value
Stock awards outstanding January 1, 2011	1,006,108		$	7.75
Shares granted	232,381		14.57
Shares vested	(284,219	)	8.53
Shares forfeited	—		—
Stock awards outstanding December 31, 2011	954,270		$	9.18

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

A summary of the Company’s directors’ restricted stock awards as of December 31, 2011, and changes during the year ended is as follows:

	Restricted Shares		Weighted Average Grant Date Fair Value
Stock awards outstanding January 1, 2011	94,148		$	5.52
Restricted shares granted	29,480		14.93
Restricted shares where the restriction lapsed	(36,374	)	7.70
Restricted shares forfeited	—		—
Stock awards outstanding December 31, 2011	87,254		$	7.79