Note 6 - Stock-based Compensation (Tables)

6 Months Ended

Mar. 30, 2019

Notes Tables

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

	Six Months Ended
	March 30,			March 31,
	2019			2018
Risk-free interest rate		3.84	%		2.72	%
Dividend yield		0.50	%		0.40	%
Expected volatility		43.08	%		37.74	%
Expected term (in years)		4.56			4.89

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

											Contractual		Aggregate
	Options			Exercise Price Per Share							Term - Weighted		Intrinsic
	Outstanding								Weighted		Average		Value
	(in thousands)			Range					Average		(in years)		(in thousands)
Outstanding at September 29, 2018		264		$	10.23	-	$	41.85	$	29.25
Granted		58			21.57	-		21.57		21.57
Exercised		(5	)		18.05	-		26.75		23.95			$	21
Outstanding at March 30, 2019		317			10.23	-		41.85		27.93		7.83		205
Vested and anticipated to vest in the future at March 30, 2019		313								27.91		7.81		205
Exercisable at March 30, 2019		145								26.05		6.38		205

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, September 29, 2018		103		$	30.40
Granted		35			21.57
Released		(36	)		25.28
Balance, March 30, 2019		102			29.16