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Long-Term Debt (Schedule Of Interest Expense Related To Long-Term Debt) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 30, 2013 | Mar. 31, 2012
Debt Disclosure [Abstract] |  |
Interest expense | $ 64 | $ 51

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- Details
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Balance Type: | na
Period Type: | duration

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- Definition Aggregate amount of interest paid or due on all long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 8 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Section 563c.102 -Paragraph 8 -Chapter V -Subsection I -LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It 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 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.8) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration