Other Identifiable Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified				6 Months Ended
Jul. 01, 2012	Jan. 01, 2012	Jul. 03, 2011	Jul. 01, 2012 Minimum [Member]	Jul. 01, 2012 Maximum [Member]
Other identifiable intangible assets
Other identifiable intangible assets, Estimated Useful Lives				1 year	20 years
Other identifiable intangible assets	$ 8,557	$ 8,557	$ 8,675
Less: Accumulated amortization	4,326	4,118	4,030
Other identifiable intangible assets, net	$ 4,231	$ 4,439	$ 4,645

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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)(1)

-URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph a(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Gross carrying amount before accumulated amortization as of the balance sheet date of intangible assets not otherwise specified in the taxonomy having a reasonably expected period of economic benefit.

+ References

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