Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

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

Summary of share-based compensation

A detail of share-based compensation expense for the periods ended December 31, 2012, 2011 and 2010 is as follows (in thousands):

	Year Ended December 31,
	2012		2011		2010
Stock options:
Incentive Stock Options	$	786	$	493	$	793
Non-Qualified Stock Options	660		703		2,081
Restricted stock	5,464		3,637		4,263
Restricted stock units	277		—		—
Share based compensation	$	7,187	$	4,833	$	7,137

Schedule of stock option valuation assumptions

The following table outlines the assumptions used in computing the fair value of stock options granted during 2012, 2011 and 2010:

	Years Ended December 31,
	2012		2011		2010
Dividend yield	—%		—%		—%
Expected volatility	79.2% - 79.6%		78.5% - 79.7%		78.2% - 80.3%
Risk-free rate	0.8% - 1.1%		1.1% - 2.2%		1.5% - 3.0%
Expected term	6 years		6 years		6 years
Forfeiture rate	5.0%		5.0%		5.0%
Stock options granted (1)	125,487		395,280		69,500
Wgtd. avg. grant date fair value per share	$	3.71	$	5.09	$	4.21
Fair value of grants (1)	$	465,000	$	2,011,000	$	293,000

(1) Prior to applying estimated forfeiture rate

Schedule of stock options activity

The following table details stock option activity during the year ended December 31, 2012:

	Number of Options		Wgtd. Avg. Exercise  Price		Wgtd. Avg. Remaining  Life	Aggregate Intrinsic  Value (000’s)
Outstanding at beginning of year	1,922,408		$	5.56
Granted	125,487		5.51
Expired/cancelled/forfeited	(44,554	)	6.71
Exercised	(78,400	)	3.32
Outstanding at end of year	1,924,941		5.61		5.0 years	$	1,114
Options exercisable at end of year	1,534,311		$	5.31	4.1 years	$	1,114
Options expected to vest	371,098		6.79		8.8 years	$	48

Schedule of stock option plans, by exercise price range

The following table summarizes information regarding stock options outstanding at December 31, 2012:

Range of	Options	Wgtd. Avg.	Wgtd. Avg.	Options	Wgtd. Avg.
Exercise	Outstanding	Remaining	Exercise	Exercisable	Exercise
Price	12/31/2012	Contractual Life	Price	12/31/2012	Price
$0.0—$3.17	450,667	1.0 years	$2.92	450,667	$2.92
$3.17—$5.91	422,818	4.1 years	$4.53	308,831	$4.23
$5.91—$7.08	672,862	6.4 years	$6.98	639,195	$7.01
$7.08—$9.99	378,594	8.4 years	$7.59	135,618	$7.71
	1,924,941	5.0 years	$5.61	1,534,311	$5.31

Schedule of restricted stock units activity

The following table details restricted stock activity during 2012:

	Number of Shares		Wgtd. Avg. Fair Value  per Share
Outstanding at beginning of year	1,988,602		$	6.69
Granted	659,915		5.24
Expired/cancelled/forfeited	(109,236	)	6.64
Lapse of restrictions	(733,452	)	6.40
Outstanding at December 31, 2012	1,805,829		$	6.28