Note 9 - Accounting for Share-based Compensation - Stock Option Activity (Details) - $ / shares	12 Months Ended
	Nov. 29, 2025	Dec. 02, 2024	Nov. 30, 2024	Dec. 02, 2023
Outstanding Options (in shares)	4,605,104		4,941,885	4,823,070
Outstanding Options, weighted-average exercise price (in dollars per share)	$ 55.4		$ 52.28	$ 50.42
Granted (in shares)	564,318		470,748	471,975
Granted, weighted-average exercise price (in dollars per share)	$ 64.13		$ 77.77	$ 68.27
Exercised (in shares)	(276,377)	(314,832)	(746,892)	(314,832)
Exercised, weighted-average exercise price (in dollars per share)	$ 35.63		$ 48.1	$ 46.43
Forfeited or cancelled (in shares)	(58,882)		(60,637)	(38,328)
Forfeited or cancelled, weighted-average exercise price (in dollars per share)	$ 69.62		$ 64.07	$ 63.52
Outstanding Options (in shares)	4,834,163		4,605,104	4,941,885
Outstanding Options, weighted-average exercise price (in dollars per share)	$ 57.38		$ 55.4	$ 52.28