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Note 8 - Accounting for Share-based Compensation (Tables)

9 Months Ended

Sep. 01, 2018

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
	September 1, 2018		September 2, 2017		September 1, 2018			September 2, 2017
Expected life (in years)		4.75		4.75	4.75			4.75
Weighted-average expected volatility		23.36%		23.91%	23.30%			24.84%
Expected volatility		23.36%		23.91%	23.18%	-	23.58%	23.91%	-	24.88%
Risk-free interest rate		2.72%		1.85%	2.38%	-	2.90%	1.89%
Expected dividend yield		1.16%		1.15%	1.14%			1.12%
Weighted-average fair value of grants		$11.75		$10.58	$11.38			$10.81

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

				Average
	Options			Exercise Price
Outstanding at December 2, 2017		3,860,764		$	42.28
Granted		810,306			53.07
Exercised		(163,190	)		30.86
Forfeited or cancelled		(6,281	)		44.00
Outstanding at September 1, 2018		4,501,599		$	44.64

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

	Units			Weighted- Average Grant Date Fair Value		Weighted- Average Remaining Contractual Life (in Years)
Nonvested at December 2, 2017		462,241		$	44.80		1.0
Granted		147,601			51.29		2.4
Vested		(190,249	)		43.67		-
Forfeited		(2,947	)		47.20		1.3
Nonvested at September 1, 2018		416,646		$	47.60		1.2

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

	Non-employee Directors		Employees			Total
Units outstanding December 2, 2017		443,570		31,606			475,176
Participant contributions		11,738		6,274			18,012
Company match contributions		19,610		627			20,237
Payouts		-		(6,090	)		(6,090	)
Units outstanding September 1, 2018		474,918		32,417			507,335

- Definition

Tabular disclosure of an equity-based arrangement (such as stock or unit options and stock or unit awards) with an individual employee, which is generally an employment contract between the entity and a selected officer or key employee containing a promise by the employer to pay certain equity-based awards at future dates, sometimes including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period, the number of shares or units issued during the period under such arrangements, and the carrying amount as of the balance sheet date of the related liability.

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