Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

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,
	2015		2014		2015		2014
Cost of goods sold	$	274	$	268	$	837	$	867
Research and development expense		2,208		1,774		6,755		5,579
General and administrative expense		2,280		2,080		6,907		6,201
Total stock-based compensation	$	4,762	$	4,122	$	14,499	$	12,647