Note 8 - Income Taxes - Reconciliation of Effective Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 28, 2015	Nov. 29, 2014	Nov. 30, 2013
Statutory U.S. federal income tax rate	$ 48,421	$ 27,759	$ 44,641
State income taxes, net of federal benefit	3,281	1,534	2,351
Foreign dividend repatriation	388	760	467
Foreign operations	1,547	$ (8,287)	$ (12,598)
Impact of option valuation	1,211
Interest income not taxable in the U.S.	(1,243)	$ (1,649)	$ (1,789)
Change in valuation allowance	480	3,317	1,819
Tax impact of special charges, net	1,678	11,773	5,998
Other	92	(859)	(940)
Total	$ 55,855	$ 34,348	$ 39,949