Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

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

Schedule of Stock-Based Compensation Expense

Total stock-based compensation expense included in our Consolidated Statements of Operations is presented in the following table:

	Three Months Ended				Nine Months Ended
(In thousands)	September 30, 2017		October 1, 2016		September 30, 2017		October 1, 2016
Cost of products sold	$	154	$	231	$	562	$	656
Research and development	980		2,024		4,129		5,951
Selling, general and administrative	1,380		2,054		4,595		5,500
Total stock-based compensation	$	2,514	$	4,309	$	9,286	$	12,107