Note 9 - Earnings Per Share - Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended
	Feb. 27, 2021	Feb. 29, 2020
Weighted-average common shares - basic (in shares)	52,492	51,295
Equivalent shares from share-based compensations plans (in shares)	847	1,285
Weighted-average common and common equivalent shares diluted (in shares)	53,339	52,580