Note 6 - Stock-Based Compensation (Tables)

6 Months Ended

Mar. 28, 2015

Notes Tables

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

	Three Months Ended						Six Months Ended
	March 28,			March 29,			March 28,			March 29,
(In thousands)	2015			2014			2015			2014
Stock options:
Compensation expense	$	382		$	358		$	555		$	523
Excess tax benefits		(147	)		(105	)		(147	)		(191	)

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

	Six Months Ended
	March 28,			March 29,
	2015			2014
Risk-free interest rate		1.77	%		1.56	%
Dividend yield		0.55	%		0.62	%
Expected volatility		37.39	%		41.46	%
Expected term (in years)		5.67			4.94

Schedule of 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 27, 2014		871		$6.89	-	$20.50	$	14.23
Granted		63		21.96	-	21.96		21.96
Exercised		(23	)	6.89	-	11.15		8.99			$	284
Outstanding at March 28, 2015		911		7.55	-	21.96		14.90		6.27		5,325
Vested and anticipated to vest in the future at March 28, 2015		907						14.89		6.26		5,316
Exercisable at March 28, 2015		637						13.33		5.14		4,674

Schedule of RSU Grants and Compensation Expense [Table Text Block]

	Three Months Ended				Six Months Ended
	March 28,		March 29,		March 28,		March 29,
(In thousands)	2015		2014		2015		2014
Restricted stock unit grants:
Units		36		40		36		40
Market value	$	790	$	763	$	790	$	763
Compensation expense		449		462		718		705

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 27, 2014		197		$	15.68
Granted		36			21.96
Released		(50	)		14.99
Balance, March 28, 2015		183			17.09