Note 9 - Earnings Per Share - Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Aug. 28, 2021	Aug. 29, 2020	Aug. 28, 2021	Aug. 29, 2020
Weighted-average common shares - basic (in shares)	53,049	52,130	52,794	51,959
Equivalent shares from share-based compensations plans (in shares)	1,597	461	1,299	441
Weighted-average common and common equivalent shares diluted (in shares)	54,646	52,591	54,093	52,400