Stock-Based Compensation (Tables)

3 Months Ended

Apr. 01, 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 was as follows: 

	Three Months Ended
(In thousands)	April 1, 2017		April 2, 2016
Cost of products sold	$	228	$	259
Research and development	1,850		2,459
Selling, general and administrative	1,765		1,838
Total stock-based compensation	$	3,843	$	4,556