Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2014

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

Stock-Based Compensation Expense

Total stock-based compensation expense was recognized in our Condensed Consolidated Statements of Operations as follows (in thousands):

	Three months ended September 30,				Nine months ended September 30,
	2014		2013		2014		2013
Cost of goods sold	$	268	$	327	$	867	$	974
Research and development expense		1,774		2,071		5,579		5,923
General and administrative expense		2,080		2,166		6,201		6,268
Total stock-based compensation	$	4,122	$	4,564	$	12,647	$	13,165