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Condensed Consolidated Statements of Operations (unaudited) (Parenthetical) (USD $) In Thousands	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Oct. 02, 2011 Research and development [Member]	Sep. 26, 2010 Research and development [Member]	Oct. 02, 2011 Research and development [Member]	Sep. 26, 2010 Research and development [Member]	Oct. 02, 2011 Selling, general, and administrative [Member]	Sep. 26, 2010 Selling, general, and administrative [Member]	Oct. 02, 2011 Selling, general, and administrative [Member]	Sep. 26, 2010 Selling, general, and administrative [Member]
Operating expenses:
Amortization of intangible assets	$ 77	$ 95	$ 234	$ 314	$ 78	$ 79	$ 235	$ 326

X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 350



-SubTopic 30



-Section 50



-Paragraph 2



-Subparagraph (a)(2)



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Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Statement of Financial Accounting Standard (FAS)



-Number 142



-Paragraph 45



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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.







Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 230



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-Section 45



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Reference 4: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 350



-SubTopic 30



-Section 45



-Paragraph 2



-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

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