Note 8 - Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Details) (Parentheticals) - USD ($) $ in Thousands	Mar. 02, 2019	Dec. 01, 2018
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Tax on defined benefit pension plans adjustment	$ 50,105	$ 75,083
Tax on interest swap	(3,416)
Tax on cash flow hedge	390	588
AOCI Attributable to Parent [Member]
Tax on defined benefit pension plans adjustment	50,105	75,083
Tax on interest swap	(3,416)
Tax on cash flow hedge	$ 390	$ 588