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Note 6 - Pension Plans - Net Periodic Cost (Benefit) (Details) - Pension Plan [Member] - USD ($) $ in Thousands	12 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 24, 2017
Service cost for benefits earned during the year	$ 36	$ 48	$ 84
Interest cost on projected benefit obligation	6,563	5,754	5,394
Expected return on plan assets	(8,073)	(7,933)	(7,878)
Amortization of net loss	1,135	2,025	2,947
Amortization of prior service benefit	(100)	(136)	(136)
Net periodic pension cost (benefit)	$ (439)	$ (242)	$ 411

X

- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

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