Note 9 - Accounting for Share-based Compensation - Fair Value of Options Granted (Details) - $ / shares	12 Months Ended
	Dec. 02, 2023	Dec. 03, 2022	Nov. 27, 2021
Expected life (Year)	5 years	5 years	5 years
Weighted-average expected volatility	35.28%	33.35%	32.50%
Weighted-average expected dividend	1.20%	0.95%	1.26%
Weighted-average fair value of grants (in dollars per share)	$ 22.41	$ 20.91	$ 13.29
Minimum [Member]
Expected volatility range	35.09%	33.33%	32.48%
Risk-free interest rate	3.48%	1.53%	0.39%
Expected dividend yield range	1.13%	0.94%	0.92%
Maximum [Member]
Expected volatility range	35.69%	34.34%	32.94%
Risk-free interest rate	4.72%	4.06%	1.20%
Expected dividend yield range	1.22%	1.23%	1.27%