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Segment, Geographic, Product and Significant Customer Information (Details 2) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 28, 2013 | Dec. 29, 2012 | Dec. 31, 2011
Segment Reporting Information [Line Items] |  |  |
Total product revenues | $ 107,402 | $ 143,827 | $ 194,774
Automated Systems [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | 82,924 | 119,451 | 139,261
Integrated Systems [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | 11,412 | 12,379 | 25,413
Materials Characterization Systems [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | $ 13,066 | $ 11,997 | $ 30,100

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- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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- Details
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