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Information Concerning Product Lines, Geographic Information and Revenue Concentration (Schedule of Revenue by Product Line) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 segment | Oct. 02, 2011 segment | Sep. 30, 2012 segment | Oct. 02, 2011 segment
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |
Number of reportable segments | 1 |  | 1 |  | 1 |  | 1 |
Total revenue | $ 3,657 |  | $ 5,339 |  | $ 11,858 |  | $ 16,623 |
New Products [Member] |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |
Total revenue | 1,558 | [1] | 1,222 | [1] | 4,915 | [1] | 3,632 | [1]
Mature Products [Member] |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |
Total revenue | $ 2,099 | [1] | $ 4,117 | [1] | $ 6,943 | [1] | $ 12,991 | [1]
[1] | For all periods presented: New products represent products introduced since 2005, and include ArcticLink®, ArcticLink II, ArcticLink III, Eclipse™ II, PolarPro®, PolarPro II, and QuickPCI® II. Mature products include Eclipse, EclipsePlus, pASIC® 1, pASIC 2, pASIC 3, QuickFC, QuickMIPS, QuickPCI, QuickRAM®, and V3, as well as royalty revenue, programming hardware and software.

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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=6880815&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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