Note 14 - Income Taxes - Income Tax Effects Of Temporary Differences And Carryforwards (Details) - USD ($)	Nov. 26, 2016	Nov. 28, 2015	Nov. 30, 2013
Deferred income tax assets:
Trade accounts receivable	$ 307,000	$ 506,000
Inventories	2,407,000	2,420,000
Notes receivable	562,000	1,795,000
Post employment benefit obligations	5,338,000	6,992,000
State net operating loss carryforwards	731,000	927,000
Unrealized loss from affiliates	217,000	356,000
Net deferred rents	3,112,000	2,674,000
Other	2,005,000	2,165,000
Gross deferred income tax assets	14,679,000	17,835,000
Valuation allowance	0	0	$ (1,044,000)
Total deferred income tax assets	14,679,000	17,835,000
Deferred income tax liabilities:
Property and equipment	5,179,000	3,093,000
Intangible assets	1,012,000	860,000
Prepaid expenses and other	417,000	411,000
Total deferred income tax liabilities	6,608,000	4,364,000
Net deferred income tax assets	$ 8,071,000	$ 13,471,000