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Note 7 - Pension Plans - Amounts Recognized in Accumulated Other Comprehensive Income (Loss) (Details) - Pension Plan [Member] - USD ($) $ in Thousands	12 Months Ended
	Sep. 27, 2020	Sep. 29, 2019
Unrecognized net actuarial loss	$ (41,344)	$ (53,072)
Unrecognized prior service benefit	0	6
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax, Total	$ (41,344)	$ (53,066)

X

- Definition

Amount, before tax, after reclassification adjustment, of increase (decrease) in accumulated other comprehensive income from gain (loss) of defined benefit plan.

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