Note 1 - Basis of Presentation (Details Textual) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 01, 2018	Mar. 03, 2018	Sep. 02, 2017	Sep. 01, 2018	Sep. 02, 2017
Income Tax Expense (Benefit), Total	$ 9,300		$ 9,262	$ (9,844)	$ 26,178
Accounting Standards Update 2016-09 [Member]
Income Tax Expense (Benefit), Total	$ (266)			(1,095)
AOCI Attributable to Parent [Member]
Reclassification of Tax Effects From AOCI				(18,341)
Retained Earnings [Member]
Reclassification of Tax Effects From AOCI				$ 18,341
Accounting Standards Update 2018-02 [Member] | AOCI Attributable to Parent [Member]
Reclassification of Tax Effects From AOCI		$ (18,341)
Accounting Standards Update 2018-02 [Member] | Retained Earnings [Member]
Reclassification of Tax Effects From AOCI		$ 18,341