Note 3 - Accounting for Share-based Compensation (Tables)

9 Months Ended

Aug. 27, 2016

Notes Tables

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

	Three Months Ended			Nine Months Ended
	August 27, 2016			August 27, 2016			August 29, 2015
Expected life (in years)		4.75			4.74			4.61
Weighted-average expected volatility		26.77%			28.96%			30.91%
Expected volatility	25.71%	-	27.10%	25.71%	-	29.23%	25.50%	-	31.67%
Risk-free interest rate		0.98%			1.43%			1.26%
Expected dividend yield		1.26%			1.54%			1.17%
Weighted-average fair value of grants		$9.38			$7.72			$10.21

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

				Weighted-
				Average
	Options			Exercise Price
Outstanding at November 28, 2015		2,912,073		$	33.37
Granted		844,033			33.86
Exercised		(539,165	)		24.05
Forfeited or cancelled		(164,337	)		39.37
Outstanding at August 27, 2016		3,052,604		$	34.82

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

												Weighted-
										Weighted-		Average
										Average		Remaining
										Grant		Contractual
										Date Fair		Life
	Units			Shares			Total			Value		(in Years)
Nonvested at November 28, 2015		237,013			110,160			347,173		$	42.17		0.8
Granted		243,628			-			243,628			35.32		1.6
Vested		(104,051	)		(70,428	)		(174,479	)		41.88		-
Forfeited		(31,337	)		(179	)		(31,516	)		38.34		1.7
Nonvested at August 27, 2016		345,253			39,553			384,806		$	38.33		1.2

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

	Non-employee
	Directors			Employees			Total
Units outstanding November 28, 2015		380,170			45,906			426,076
Participant contributions		35,678			4,379			40,057
Company match contributions		3,568			438			4,006
Payouts		(301	)		(7,834	)		(8,135	)
Units outstanding August 27, 2016		419,115			42,889			462,004