Note 11 - Income Taxes (Details) - Reconciliation Of Statutory Federal Income Tax Rate And Effective Income Tax Rate	12 Months Ended
	Nov. 30, 2013	Nov. 24, 2012	Nov. 26, 2011
Reconciliation Of Statutory Federal Income Tax Rate And Effective Income Tax Rate [Abstract]
Statutory federal income tax rate	34.00%	35.00%	35.00%
Dividends received deduction			(1.80%)
Change in income tax valuation allowance	1.70%	(155.60%)	(29.20%)
Change in income tax reserves	0.10%	(3.30%)	(0.10%)
State income tax, net of federal benefit	3.70%	1.50%	3.40%
Other	(1.70%)	0.10%
Effective income tax rate	37.80%	(122.30%)	7.30%