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Note I - Income Taxes (Details) - Effective Income Tax Rate Reconciliation (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012	Sep. 29, 2012
Effective Income Tax Rate Reconciliation [Abstract]
Income taxes at federal statutory rates	$ 38,922	$ 35,277	$ 30,200
Increase (decrease)in taxes resulting from:
State income taxes, net of federal income tax benefit	4,281	4,346	3,777
Domestic production activities deduction	(2,100)	(1,540)	(1,553)
Reduction of gross unrecognized tax benefits	(161)	(346)	(307)
Other, net	(1,550)	(1,328)	51
Income tax expense	$ 39,392	$ 36,409	$ 32,168	$ 32,168

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for qualified production activity.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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