Note 5 - Unconsolidated Affiliated Companies (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Aug. 25, 2012	Aug. 31, 2013	Nov. 24, 2012
Note 5 - Unconsolidated Affiliated Companies (Details) [Line Items]
Equity Method Investments		$ 6,950	$ 6,484
Due to Affiliate		2,167	2,547
Indemnification Escrow Receivable		2,348	4,696
Increase (Decrease) in Other Receivables	$ 1,410
Zenith Freight Lines [Member]
Note 5 - Unconsolidated Affiliated Companies (Details) [Line Items]
Equity Method Investment, Ownership Percentage		49.00%

Amount withheld from IHFC sales proceeds for general contingencies; both current and noncurrent

No definition available.

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Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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The increase (decrease) during the reporting period in other amounts due to the reporting entity, which are not otherwise defined in the taxonomy.

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