Note 9 - Accounting for Share-based Compensation (Tables)

12 Months Ended

Nov. 27, 2021

Notes Tables

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block]

	2021			2020			2019
Expected life (in years)		5.00			5.00			4.75
Weighted-average expected volatility		32.50	%		24.32	%		24.26	%
Expected volatility range		32.48% - 32.94%			24.18% - 30.99%			23.88% - 24.76%
Risk-free interest rate		0.39% - 1.20%			0.21% - 1.51%			1.34% - 2.55%
Weighted-average expected dividend		1.26	%		1.38	%		1.40	%
Expected dividend yield range		0.92% - 1.27%			1.35% - 2.53%			1.25% - 1.45%
Weighted-average fair value of grants	$	13.29		$	9.63		$	9.76

Share-based Payment Arrangement, Option, Activity [Table Text Block]

				Weighted-
				Average
	Options			Exercise Price
Outstanding at December 1, 2018		4,466,106		$	44.72
Granted		1,020,246			45.53
Exercised		(378,734	)		28.74
Forfeited or cancelled		(47,308	)		48.90
Outstanding at November 30, 2019		5,060,310		$	46.04
Granted		1,052,968			47.70
Exercised		(397,456	)		31.00
Forfeited or cancelled		(169,907	)		49.11
Outstanding at November 28, 2020		5,545,915		$	47.34
Granted		1,237,094			53.33
Exercised		(740,731	)		43.64
Forfeited or cancelled		(1,069,886	)		56.33
Outstanding at November 27, 2021		4,972,392		$	47.45

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

						Weighted-
				Weighted-		Average
				Average		Remaining
				Grant		Contractual
				Date Fair		Life
	Units			Value		(in Years)
Nonvested at December 1, 2018		414,353		$	47.45		1.0
Granted		302,132			44.29		2.2
Vested		(197,349	)		45.45		-
Forfeited		(31,139	)		43.37		0.4
Nonvested at November 30, 2019		487,997		$	46.56		0.8
Granted		216,293			46.39		3.4
Vested		(221,275	)		46.83		-
Forfeited		(50,666	)		47.55		0.1
Nonvested at November 28, 2020		432,349		$	46.22		0.8
Granted		356,779			54.49		3.2
Vested		(157,945	)		48.69		-
Forfeited		(78,818	)		47.79		0.8
Nonvested at November 27, 2021		552,365		$	50.63		1.9

Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments [Table Text Block]

	Non-employee
	Directors			Employees			Total
Units outstanding December 1, 2018		479,787			29,735			509,522
Participant contributions		22,153			11,166			33,319
Company match contributions1		23,720			1,117			24,837
Payouts		-			(5,354	)		(5,354	)
Units outstanding November 30, 2019		525,660			36,664			562,324
Participant contributions		18,008			13,814			31,822
Company match contributions1		23,033			1,381			24,414
Payouts		(111,436	)		(7,306	)		(118,742	)
Units outstanding November 28, 2020		455,265			44,553			499,818
Participant contributions		13,036			10,487			23,523
Company match contributions1		20,118			1,049			21,167
Payouts		(19,895	)		(7,728	)		(27,623	)
Units outstanding November 27, 2021		468,524			48,361			516,885