Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Stock-Based Compensation by Expense Category

The following table summarizes the components of share-based compensation expense in the consolidated statements of operations for the three-month periods ended March 31, 2013 and 2012:

	Three Months Ended March  31,
	2013		2012
	(In thousands)
Research and development	$	252	$	255
Selling, general and administrative		708		963
Total non-cash compensation expense related to share-based compensation included in operating expense	$	960	$	1,218

Schedule of Unvested Stock Option Awards

The following table summarizes the activity related to the Company’s restricted stock and RSU’s for the three-month period ended March 31, 2013:

	Number of Shares			Weighted-Average Grant Date Fair Value Per Share
	(Shares in thousands)
Unvested at December 31, 2012		1,830		$	2.74
Granted		642			0.94
Vested		(611	)		2.58
Forfeited		(32	)		1.58
Unvested at March 31, 2013		1,829		$	2.18

Stock Option

Schedule of Weighted-Average Key Assumptions Used in Determining Fair Value of Stock Option Awards

The weighted-average key assumptions used in determining the fair value of stock options granted for the three-month periods ended March 31, 2013 and 2012 were as follows:

	Three Months Ended March 31,
	2013			2012
Weighted-average volatility		106.9	%		94	%
Weighted-average risk-free interest rate		0.8	%		1.1	%
Weighted-average expected term in years		4.9			5.7
Dividend yield		0.0	%		0.0	%
Weighted-average grant date fair value	$	0.73		$	1.68

Schedule of Stock Option Activity

The following table summarizes the activity related to the Company’s stock options for the three-month period ended March 31, 2013:

	Number of Shares			Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Term (in yrs)		Aggregate Intrinsic Value of In-the-Money Options
	(In thousands, except weighted-average data)
Outstanding at December 31, 2012		4,027		$	5.16		7.76	$	208
Granted		1,275			0.95		—		—
Exercised		—			—		—		—
Cancelled		(485	)		3.42		—		—
Outstanding at March 31, 2013	$	4,817		$	4.22		8.09	$	56
Exercisable at March 31, 2013		1,994		$	6.26		6.39	$	23

Stock Options That Contain Performance And Market-Based Conditions

Schedule of Stock Option Activity

The following table summarizes the activity related to the Company’s performance options for the three-month period ended March 31, 2013:

	Number of Shares			Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Term (in yrs)		Aggregate Intrinsic Value of In-the-Money Options
	(In thousands, except weighted-average data)
Outstanding at December 31, 2012		953		$	3.73		9.30	$	74
Granted		—			—		—		—
Exercised		—			—		—		—
Cancelled		(81	)		5.14		—		—
Outstanding at March 31, 2013		872		$	3.60		8.82	$	36
Exercisable at March 31, 2013		476		$	3.73		8.60	$	—