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Note 8 - Stock-based Compensation (Tables)

12 Months Ended

Sep. 29, 2018

Notes Tables

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		Year Ended
		Septem ber 29 ,				Septem ber 30 ,				Octo ber 1 ,
		201 8				201 7				201 6
Expected term (in years)			4.79				5.14				5.45
Risk-free interest rate			2.71	%			1.98	%			1.30	%
Expected volatility			37.32	%			38.32	%			39.00	%
Expected dividend yield			0.37	%			0.37	%			0.48	%

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

						Exercise Price										Contractual				Aggregate
						Per Share										Term -				Intrinsic
		Options										Weighted				Weighted				Value
(Share amounts in thousands)		Outstanding				Range						Average				Average (in years)				(in thousands)
Outstanding at October 3, 2015			923				$7.55	-	$21.96			$	15.14
Granted			99				23.95	-	34.49				28.47
Exercised			(651	)			7.55	-	21.96				13.93							$	8,718
Outstanding at October 1, 2016			371				9.16	-	34.49				20.81
Granted			88				26.75	-	37.06				30.93
Exercised			(67	)			9.16	-	23.95				19.05								1,212
Outstanding at September 30, 2017			392				9.16	-	37.06				23.40
Granted			77				29.69	-	41.85				34.84
Exercised			(196	)			9.16	-	37.06				19.68								3,866
Forfeited			(9	)			23.95	-	37.06				29.88
Outstanding at September 29, 2018			264				10.23	-	41.85				29.25				7.64				1,845
Vested and anticipated to vest in the future at September 29, 2018			262										29.22				7.69				1,974
Exercisable at September 29, 2018			109										24.73				5.98				1,228

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

						Weighted
		Restricted				Average
		Stock Units				Grant Date
(Unit amounts in thousands)		Outstanding				Fair Value
Balance, October 3, 2015			157			$	18.96
Granted			57				26.57
Forfeited			(2	)			23.95
Released			(67	)			17.95
Balance, October 1, 2016			145				22.35
Granted			37				31.95
Released			(54	)			20.43
Balance, September 30, 2017			128				25.92
Granted			35				33.52
Forfeited			(3	)			29.60
Released			(57	)			22.26
Balance, September 29, 2018			103				30.40

Restricted Stock Units (RSUs) [Member]

Notes Tables

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

		Year Ended
		September 29,				September 30,				October 1,
(In thousands)		2018				2017				2016
Restricted stock unit grants:
Units			35				37				57
Market value		$	1,175			$	1,180			$	1,516
Compensation expense			1,172				1,238				1,451

X

- Definition

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