Note 11 - Unconsolidated Affiliated Companies (Detail) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended	12 Months Ended
	Dec. 19, 2012	May 28, 2011	Nov. 24, 2012	Nov. 26, 2011	Nov. 27, 2010	May 02, 2011
Indemnification Escrow Receivable Current Asset			$ 2,348	$ 2,348
Indemnification Escrow Receivable				4,695		4,695	[1]
Increase (Decrease) in Other Receivables	2,348
Cost Method Investments						1,000	[2]
Equity Method Investments			6,484	6,137
Payments to Acquire Equity Method Investments		980
Gross Additional Investment by All Affiliate Owners		2,000
Related Party Transaction, Expenses from Transactions with Related Party			25,317	23,665	20,667
Due to Affiliate			$ 2,547	$ 2,114
IHFC [Member]
Equity Method Investment, Ownership Percentage						46.90%
Zenith Freight Lines [Member]
Equity Method Investment, Ownership Percentage			49.00%

[1] $2,348 included in other current assets in the accompanying consolidated balance sheets at November 24, 2012 and November 26, 2011, with the remainder included in other assets.

[2] Included in other assets in the accompanying consolidated balance sheets at November 24, 2012 and November 26, 2011.