Stock Benefit Plans and Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Stock Option Activity

A summary of the Company’s stock option activity under the 2005 Plan and related information is as follows (in thousands, except as indicated and per share data):

	Shares			Weighted average exercise price		Weighted average remaining contractual term (in years)		Aggregate intrinsic value
Outstanding at December 31, 2011		4,717		$	3.31		7.71	$	107
Granted		2,574		$	1.94		—		—
Exercised		(62	)	$	1.23		—		—
Forfeited		(2,309	)	$	3.51		—		—
Outstanding at December 31, 2012		4,920		$	2.51		8.03	$	64
Options vested and exercisable at December 31, 2012		1,702		$	3.32		5.59	$	51
Options vested and expected to vest at December 31, 2012		4,484		$	2.55		7.88	$	63

Summary of Information about Restricted Stock Awards Activity

The following table summarizes information about the restricted stock awards activity (in thousands, except as indicated and per share data):

	Shares			Weighted average grant date fair value		Weighted average remaining recognition period (in years)
Unvested at December 31, 2011		361		$	2.61		3.22
Awarded		702		$	1.57
Vested		(77	)	$	2.95
Forfeited		(109	)	$	2.10
Unvested at December 31, 2012		877		$	1.81		1.49

Summary of Common Stock Reserved for Future Issuance

Common stock reserved for future issuance consists of the following (in thousands):

	December 31, 2012
Stock options outstanding		4,920
Awards outstanding		877
Warrants outstanding		594
Authorized for future grant under 2005 Plan		531
		6,922