Note 11 - Income Taxes (Details) - Reconciliation of Statutory Federal Income Tax Rate and Effective Income Tax Rate	12 Months Ended
Nov. 29, 2014	Nov. 30, 2013	Nov. 24, 2012
Reconciliation of Statutory Federal Income Tax Rate and Effective Income Tax Rate [Abstract]
Statutory federal income tax rate	35.00%	34.00%	35.00%
Adjustments to state net operating loss carryforwards	3.30%
Change in income tax valuation allowance	(3.70%)	1.70%	(155.60%)
Change in income tax reserves	(1.70%)	0.10%	(3.30%)
State income tax, net of federal benefit	4.90%	3.70%	1.50%
Other	(1.50%)	(1.70%)	0.10%
Effective income tax rate	36.30%	37.80%	(122.30%)

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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