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Stock-Based Compensation (Details 1) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 04, 2014 | Jun. 28, 2013 | Jul. 04, 2014 | Jun. 28, 2013
Schedule of Employee Service Share-based Compensation [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost | $ 1,683 | $ 984 | $ 3,183 | $ 2,019
Cost of Sales [Member] |  |  |  |
Schedule of Employee Service Share-based Compensation [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost | 39 | 25 | 77 | 50
General and Administrative Expense [Member] |  |  |  |
Schedule of Employee Service Share-based Compensation [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost | 1,033 | 646 | 1,970 | 1,357
Selling and Marketing Expense [Member] |  |  |  |
Schedule of Employee Service Share-based Compensation [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost | 306 | 212 | 580 | 382
Research and Development Expense [Member] |  |  |  |
Schedule of Employee Service Share-based Compensation [Line Items] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost | $ 305 | $ 101 | $ 556 | $ 230

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- Definition Amount of capitalized and expensed compensation cost from equity-based compensation arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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