Note 13 - Commitments and Contingencies (Details Textual) $ in Millions	3 Months Ended	6 Months Ended
Mar. 29, 2025 USD ($)	Sep. 28, 2024 USD ($)	Mar. 29, 2025 USD ($)
Accrued Insurance	$ 15.9	$ 15.3	$ 15.9
Letters of Credit Outstanding, Amount	$ 12.3	12.3	$ 12.3
Entity Number of Employees	1,800		1,800
Self Insurance Reserve	$ 1.6	1.6	$ 1.6
Fire [Member]
Unusual or Infrequent Item, or Both, Loss, Gross	1.8	6.8	10.1
Unusual or Infrequent Item, or Both, Insurance Proceeds	1.5	5.0	2.5
Unusual or Infrequent Item, or Both, Net of Insurance Proceeds		$ 1.8	10.2
Fire [Member] \| Cost of Sales [Member]
Unusual or Infrequent Item, or Both, Gain, Gross	$ 0.3		$ 0.8

Number of persons employed by the Entity

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.

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Amount, after deduction of insurance proceeds, of loss recognized in the income statement for an event or transaction that is unusual in nature or infrequent in occurrence, or both.

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