Note 11 - Income Taxes (Details) - Income Tax Effects Of Temporary Differences And Carryforwards (USD $) In Thousands, unless otherwise specified	Nov. 30, 2013	Nov. 24, 2012
Deferred income tax assets:
Trade accounts receivable	$ 618	$ 688
Inventories	2,277	1,946
Property and equipment	756	1,688
Notes receivable	1,592	1,592
Retirement benefits	5,626	5,547
State net operating loss carryforwards	2,482	2,309
Unrealized loss from affiliates	988	1,069
Lease termination accruals	349	1,005
Other	2,398	2,580
Gross deferred income tax assets	17,086	18,424
Valuation allowance	(1,044)	(908)
Total deferred income tax assets	16,042	17,516
Deferred income tax liabilities:
Unrealized gains from affiliates	755	78
Prepaid expenses and other	135	121
Total deferred income tax liabilities	890	199
Net deferred income tax assets	$ 15,152	$ 17,317