Stock-Based Compensation (Tables)

9 Months Ended

Sep. 27, 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				Nine Months Ended
	September 27, 2014		September 28, 2013		September 27, 2014		September 28, 2013
Line item:
Cost of products sold	$	215	$	171	$	592	$	460
Research and development	1,356		1,058		3,744		2,871
Selling, general and administrative	1,562		1,333		5,207		3,654
Total stock-based compensation	$	3,133	$	2,562	$	9,543	$	6,985