Note 14 - Income Taxes - Components of Income Tax Provision (Benefit) (Details) - USD ($)	12 Months Ended
Nov. 26, 2016	Nov. 28, 2015	Nov. 29, 2014
Current:
Federal	$ 3,728,000	$ 7,972,000	$ 4,168,000
State	896,000	1,533,000	596,000
Deferred:
Increase (decrease) in valuation allowance		(70,000)	(974,000)
Federal	4,559,000	1,520,000	221,000
State	765,000	480,000	1,297,000
Total	$ 9,948,000	$ 11,435,000	$ 5,308,000

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

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