Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2015

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

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

Stock-based compensation expense included in cost of goods sold and operating expenses during the three months endedMarch 31, 2015 and 2014, was as follows:

	Three Months Ended
	March 31,
	2015		2014
Cost of goods sold	$	248	$	208
Operating expenses:
Research and development	228		161
Clinical and regulatory affairs	185		(103		)
Marketing and sales	749		538
General and administrative	801		809
Total operating expenses	$	1,963	$	1,405
Total	$	2,211	$	1,613