Stock-Based Compensation (Tables)

6 Months Ended

Jun. 28, 2014

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 (in thousands):

	Three Months Ended				Six Months Ended
	June 28, 2014		June 29, 2013		June 28, 2014		June 29, 2013
Line item:
Cost of products sold	$	211	$	164	$	377	$	289
Research and development	1,354		1,041		2,388		1,813
Selling, general and administrative	1,755		1,306		3,645		2,321
Total stock-based compensation	$	3,320	$	2,511	$	6,410	$	4,423