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Segment, Geographic, Product and Significant Customer Information - Revenue Net (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 24, 2016 USD ($) | Sep. 26, 2015 USD ($) | Sep. 24, 2016 USD ($) segment | Sep. 26, 2015 USD ($)
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |
Number of operating segments | segment |  |  | 1 |
Net revenues: |  |  |  |
Total net revenues | $ 58,714 | $ 45,678 | $ 161,970 | $ 144,682
China [Member] |  |  |  |
Net revenues: |  |  |  |
Total net revenues | 15,710 | 6,731 | 35,226 | 12,357
South Korea [Member] |  |  |  |
Net revenues: |  |  |  |
Total net revenues | 11,765 | 6,794 | 24,669 | 28,807
United States [Member] |  |  |  |
Net revenues: |  |  |  |
Total net revenues | 8,211 | 7,985 | 24,306 | 32,115
Singapore [Member] |  |  |  |
Net revenues: |  |  |  |
Total net revenues | 7,364 | 2,988 | 33,883 | 15,875
Taiwan [Member] |  |  |  |
Net revenues: |  |  |  |
Total net revenues | 6,334 | 11,331 | 16,962 | 35,173
Japan [Member] |  |  |  |
Net revenues: |  |  |  |
Total net revenues | 5,078 | 7,778 | 18,645 | 15,919
Other [Member] |  |  |  |
Net revenues: |  |  |  |
Total net revenues | $ 4,252 | $ 2,071 | $ 8,279 | $ 4,436

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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=63488584&loc=d3e20235-122688 + Details
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