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Note 6 - Share-based Compensation - Summary of Share-based Compensation Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 29, 2025	Mar. 30, 2024	Mar. 29, 2025	Mar. 30, 2024
Employee share-based compensation	$ 1,628	$ 1,728	$ 2,753	$ 3,208
The above compensation is net of tax benefits	374	375	700	696
Share-Based Payment Arrangement, Option [Member]
Employee share-based compensation	152	431	302	862
Stock Purchase Plan [Member]
Employee share-based compensation	139	139	227	238
Stock Issued to Outside Directors [Member]
Employee share-based compensation	35	47	78	101
Restricted Stock Units (RSUs) [Member]
Employee share-based compensation	1,000	605	1,595	1,126
Performance Shares [Member]
Employee share-based compensation	$ 302	$ 506	$ 551	$ 881

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-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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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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