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Note 10 - Unconsolidated Affiliated Companies (Details) - Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Nov. 29, 2014	Nov. 30, 2013	Nov. 24, 2012
Schedule of Equity Method Investments [Line Items]
Earnings recognized	$ 661	$ 770	$ 347
Earnings Recognized [Member] \| Zenith Freight Lines [Member]
Schedule of Equity Method Investments [Line Items]
Earnings recognized	$ 661	$ 770	$ 347

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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