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Geographic and Significant Customer Information (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Sep. 28, 2013 | Sep. 29, 2012 | Sep. 28, 2013 segment | Sep. 29, 2012
Geographic and Significant Customer Information [Abstract] |  |  |  |
Number of operating segments |  |  | 1 |
Total net revenues: |  |  |  |
Total net revenues | $ 39,044 | $ 43,938 | $ 98,148 | $ 152,611
United States [Member] |  |  |  |
Total net revenues: |  |  |  |
Total net revenues | 15,665 | 6,888 | 41,426 | 32,337
China [Member] |  |  |  |
Total net revenues: |  |  |  |
Total net revenues | 901 | 1,270 | 6,952 | 3,907
Japan [Member] |  |  |  |
Total net revenues: |  |  |  |
Total net revenues | 2,387 | 5,896 | 9,617 | 12,746
South Korea [Member] |  |  |  |
Total net revenues: |  |  |  |
Total net revenues | 9,805 | 18,554 | 18,946 | 75,663
Israel [Member] |  |  |  |
Total net revenues: |  |  |  |
Total net revenues | 486 | 147 | 1,248 | 6,623
Taiwan [Member] |  |  |  |
Total net revenues: |  |  |  |
Total net revenues | 3,737 | 6,233 | 6,959 | 12,105
Singapore [Member] |  |  |  |
Total net revenues: |  |  |  |
Total net revenues | 2,157 | 792 | 6,602 | 1,579
All other [Member] |  |  |  |
Total net revenues: |  |  |  |
Total net revenues | $ 3,906 | $ 4,158 | $ 6,398 | $ 7,651

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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales 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) -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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