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Note 11 - Income Taxes (Details) - Components of Income Tax Provision (Benefit) (USD $)	12 Months Ended
	Nov. 29, 2014	Nov. 30, 2013	Nov. 24, 2012	Nov. 26, 2011
Current:
Federal	$ 4,168,000us-gaap_CurrentFederalTaxExpenseBenefit	$ 759,000us-gaap_CurrentFederalTaxExpenseBenefit	$ 1,611,000us-gaap_CurrentFederalTaxExpenseBenefit
State	596,000	50,000	(487,000)
Deferred:
Increase (decrease) in valuation allowance	(974,000)	136,000	(18,704,000)	(17,464)
Federalf	221,000	1,970,000	2,458,000
State	1,297,000	176,000	423,000
Total	$ 5,308,000us-gaap_IncomeTaxExpenseBenefit	$ 3,091,000us-gaap_IncomeTaxExpenseBenefit	$ (14,699,000)us-gaap_IncomeTaxExpenseBenefit

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.