Note 12 - Changes to the Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended
Dec. 29, 2018	Dec. 30, 2017
Balance	$ 759,091	$ 682,322
Balance	768,545	707,381
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	(12,079)	(9,341)
Other comprehensive loss before reclassifications	(1,359)	(3,887)
Amounts reclassified from accumulated other comprehensive income
Balance	(13,438)	(13,228)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Balance	85	466
Other comprehensive loss before reclassifications		(110)
Amounts reclassified from accumulated other comprehensive income	(85)
Balance		356
AOCI Attributable to Parent [Member]
Balance	(11,994)	(8,875)
Other comprehensive loss before reclassifications	(1,359)	(3,997)
Amounts reclassified from accumulated other comprehensive income	(85)
Balance	$ (13,438)	$ (12,872)

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

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