v2.4.0.6

Stock-Based Compensation (Details 4) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 29, 2012 | Dec. 31, 2011 | Jan. 01, 2011
Stock-based compensation expense for all share-based payment awards |  |  |
Total stock-based compensation expense related to employee stock options and employee stock purchases | $ 5,890 | $ 4,473 | $ 2,950
Cost of Products [Member] |  |  |
Stock-based compensation expense for all share-based payment awards |  |  |
Total stock-based compensation expense related to employee stock options and employee stock purchases | 164 | 176 | 126
Cost of Service [Member] |  |  |
Stock-based compensation expense for all share-based payment awards |  |  |
Total stock-based compensation expense related to employee stock options and employee stock purchases | 230 | 218 | 206
Research and development [Member] |  |  |
Stock-based compensation expense for all share-based payment awards |  |  |
Total stock-based compensation expense related to employee stock options and employee stock purchases | 1,220 | 984 | 514
Selling [Member] |  |  |
Stock-based compensation expense for all share-based payment awards |  |  |
Total stock-based compensation expense related to employee stock options and employee stock purchases | 1,791 | 1,366 | 596
General and administrative [Member] |  |  |
Stock-based compensation expense for all share-based payment awards |  |  |
Total stock-based compensation expense related to employee stock options and employee stock purchases | $ 2,485 | $ 1,729 | $ 1,508

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + 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)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph g(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809 + Details
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