Note 5 - Unconsolidated Affiliated Companies (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Feb. 25, 2012	Mar. 02, 2013	Nov. 24, 2012
Equity Method Investments		$ 6,598	$ 6,484
Due to Affiliate		2,906	2,547
Indemnification Escrow Receivable		2,348	4,696
Increase (Decrease) in Other Receivables	$ 1,410
Zenith Freight Lines [Member]
Equity Method Investment, Ownership Percentage		49.00%