Stock-Based Compensation (Tables)

6 Months Ended

Jul. 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 is presented in the following table:

	Three Months Ended				Six Months Ended
(In thousands)	July 1, 2017		July 2, 2016		July 1, 2017		July 2, 2016
Cost of products sold	$	180	$	166	$	408	$	425
Research and development	1,299		1,468		3,149		3,927
Selling, general and administrative	1,450		1,608		3,215		3,446
Total stock-based compensation	$	2,929	$	3,242	$	6,772	$	7,798