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Note 5 - Share-based Compensation and Post-retirement Benefits - Summary of Share-based Compensation Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 30, 2023	Dec. 24, 2022
Employee share-based compensation	$ 1,159	$ 1,100
The above compensation is net of tax benefits	321	139
Share-Based Payment Arrangement, Option [Member]
Employee share-based compensation	363	620
Stock Purchase Plan [Member]
Employee share-based compensation	99	227
Stock Issued to Outside Directors [Member]
Employee share-based compensation	40	0
Restricted Stock Units (RSUs) [Member]
Employee share-based compensation	382	181
Performance Shares [Member]
Employee share-based compensation	$ 275	$ 72

X

- Definition

Amount, after tax, of expense for award under share-based payment arrangement.

+ References

No definition available.

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X

- Definition

Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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