Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

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

Schedule of Share-based Compensation Expense

Stock-based compensation expense included in cost of goods sold and operating expenses during the three and nine months endedSeptember 30, 2018 and 2017, was as follows:

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2018			2017		2018		2017
Cost of goods sold	$	111		$	169	$	614	$	642
Operating expenses:
Research and development	146			328		841		911
Clinical and regulatory affairs	(49		)	107		383		527
Marketing and sales	685			874		2,505		3,215
General and administrative	632			1,135		4,468		3,506
Total operating expenses	$	1,414		$	2,444	$	8,197	$	8,159
Total	$	1,525		$	2,613	$	8,811	$	8,801