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Investments In Marketable Securities (Tables) | 3 Months Ended
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Mar. 30, 2013
Investments In Marketable Securities [Abstract] |
Schedule Of Investments In Marketable Securities |
|  |  | December 29, 2012 |
|  |  |  |  |  |  | Net |  |  |  |
|  |  |  | Amortized |  |  | Unrealized |  |  | Fair |
|  |  |  | Cost |  |  | Loss |  |  | Value |
Auction and variable floating rate notes |  |  | $ | 415 |  | $ | - |  | $ | 415 |
Schedule Of Investments In Marketable Securities With Unrealized Losses |
|  |  | December 29, 2012
|  |  |  | Continuous Unrealized Loss
|  |  |  | Less than 12 months |  |  | 12 months or greater
|  |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized
|  |  |  | Value |  |  | Loss |  |  | Value |  |  | Loss
Auction and variable floating rate notes |  |  | $ | 415 |  | $ | - |  | $ | - |  | $ | -

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- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
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- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 + Details
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