Stockholder's Equity (Deficit) and Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

Stock Compensation Expense

The following table reflects stock compensation expense recorded, net of amounts capitalized into inventory, during the three and nine months ended September 30, 2012 and 2011 (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2012		2011		2012		2011
Compensation expense related to:
Equity Incentive Plan	$	733	$	883	$	2,744	$	3,078
Employee Stock Purchase Plan		15		8		32		32
	$	748	$	891	$	2,776	$	3,110
Stock-based compensation expense charged to:
Research and development	$	198	$	273	$	576	$	896
Selling, general and administrative	$	550	$	618	$	2,145	$	2,214
Restructuring charges	$	—	$	—	$	55	$	—