Stock-Based Compensation

3 Months Ended

Mar. 29, 2014

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

Stock-Based Compensation:

Total stock-based compensation expense included in our Consolidated Statements of Operations was as follows (in thousands):



	Three Months Ended
	March 29, 2014		March 30, 2013
Line item:
Cost of products sold	$	166	$	125
Research and development	1,034		772
Selling, general and administrative	1,890		1,015
Total stock-based compensation	$	3,090	$	1,912

During the three months ended March 29, 2014, the Company granted 98,592 market-based, restricted stock units in two equal tranches, each of which vest upon achievement of certain market-based conditions. The fair values of the market-based restricted stock units were determined and fixed on the date of grant using a lattice-based option-pricing valuation model, which incorporates a Monte-Carlo simulation, and considered the likelihood that the Company would achieve the market-based conditions. During the three months ended March 29, 2014, the first tranche of 49,296 restricted stock units vested and we incurred stock compensation expense related to performance based awards of $0.3 million.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

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