Note 11 - Income Taxes (Details) - Summary of Valuation Allowances Against Deferred Tax Assets (Valuation Allowance of Deferred Tax Assets [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Nov. 29, 2014	Nov. 30, 2013	Nov. 24, 2012
Valuation Allowance of Deferred Tax Assets [Member]
Valuation Allowance [Line Items]
Balance	$ 1,044	$ 908	$ 19,612
Additions charged to expense		136
Deductions reducing expense	(974)		(18,704)
Balance	$ 70	$ 1,044	$ 908