Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Pre-tax Stock-based Compensation

The following table summarizes the pre-tax stock-based compensation expense included in reported net income (in thousands):

	Years ended December 31,
	2014		2013		2012
Cost of revenue	$	1,609	$	1,163	$	1,294
Selling, general and administrative expenses	519		465		497
Total stock-based compensation expense	$	2,128	$	1,628	$	1,791

Schedule of Non-qualified Stock Option Activity

Summarized information for our non-qualified stock options is as follows:

Stock Options	Number of options		Weighted average exercise price		Weighted average remaining contractual term	Aggregate intrinsic value
Outstanding at December 31, 2013	569,300		$	9.41
Granted	—		—
Exercised	(337,150	)	7.91
Forfeited	(3,000	)	15.25
Expired	—		—
Outstanding at December 31, 2014	229,150		$	11.54	1.86	$5,132,000
Stock options expected to vest	220,250		$	11.49	1.84	$4,943,000
Exercisable at December 31, 2014	61,850		$	13.99	2.29	$1,233,000

Schedule of Weighted Average Non-qualified Stock Option Activity

Summarized weighted average information for non-qualified stock options granted to certain key personnel during the year ended December 31, 2012 is as follows (no stock options were granted during the years ended December 31, 2014 and 2013):

	2012
Number of options granted	54,500
Exercise price	$	17.57
Vesting term	4.5 years
Contractual term	5.5 years
Grant-date fair value	$	6.80
Black-Scholes assumptions:
Expected term	4.2 years
Expected stock price volatility	48.3		%
Risk-free interest rate	0.61		%
Expected dividend yield	—

Schedule of Restricted Stock Units Activity

Summarized share information for our restricted stock units is as follows:

	Year ended December 31, 2014		Weighted average grant date fair value
	(In shares)		(In dollars)
Outstanding and unvested, beginning of period	244,031		$	22.17
Granted	81,013		30.61
Vested	(58,864	)	21.28
Forfeited	(3,096	)	19.28
Outstanding and unvested, end of period	263,084		$	25.00
Restricted stock units expected to vest	250,823		$	25.11