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Note 14 - Income Taxes - Reconciliation of Statutory Federal Income Tax Rate and Effective Income Tax Rate (Details)
12 Months Ended
Nov. 25, 2017
Nov. 26, 2016
Nov. 28, 2015
Statutory federal income tax rate 35.00% 35.00% 35.00%
Change in income tax valuation allowance (0.10%)
Change in income tax reserves 0.10%
State income tax, net of federal benefit 3.90% 4.20% 4.40%
Benefit of goodwill basis difference (3.20%)
Excess tax benefits from stock-based compensation (1.80%) (0.30%)
Other (2.60%) (0.30%) (0.30%)
Effective income tax rate 34.50% 38.60% 35.90%