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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						6 Months Ended
	Jun. 30, 2013		Mar. 31, 2013 segment	Jul. 01, 2012		Apr. 01, 2012 segment	Jun. 30, 2013		Jul. 01, 2012
Revenue from External Customer [Line Items]
Number of reportable segments			1			1
Total revenue	$ 5,126	[1]		$ 4,071	[1]		$ 8,143		$ 8,201
New Products [Member]
Revenue from External Customer [Line Items]
Total revenue	3,094	[1]		1,718	[1]		4,035	[1]	3,357	[1]
Mature Products [Member]
Revenue from External Customer [Line Items]
Total revenue	$ 2,032	[1]		$ 2,353	[1]		$ 4,108	[1]	$ 4,844	[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

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

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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

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