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Note P - Accumulated Other Comprehensive Loss - Changes to the Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 28, 2019	Sep. 29, 2018
Balance	$ 759,091	$ 682,322
Balance	833,751	759,091
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	(12,079)	(9,341)
Other comprehensive loss before reclassifications	(909)	(2,738)
Amounts reclassified from accumulated other comprehensive income	0	0
Balance	(12,988)	(12,079)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Balance	85	466
Other comprehensive loss before reclassifications	0	(455)
Amounts reclassified from accumulated other comprehensive income	(85)	74
Balance	0	85
AOCI Attributable to Parent [Member]
Balance	(11,994)	(8,875)
Other comprehensive loss before reclassifications	(909)	(3,193)
Amounts reclassified from accumulated other comprehensive income	(85)	74
Balance	$ (12,988)	$ (11,994)

X

- Definition

Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent.

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Amount after tax of reclassification adjustments of other comprehensive income (loss) attributable to parent.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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