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Note 6 - Summary of Share-based Compensation Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 25, 2022	Jun. 26, 2021	Jun. 25, 2022	Jun. 26, 2021
Employee share-based compensation	$ 1,018	$ 717	$ 2,935	$ 2,121
The above compensation is net of tax benefits	116	265	549	1,131
Share-Based Payment Arrangement, Option [Member]
Employee share-based compensation	693	523	2,115	1,538
Stock Purchase Plan [Member]
Employee share-based compensation	90	171	240	513
Restricted Stock [Member]
Employee share-based compensation	152	23	376	70
Performance Shares [Member]
Employee share-based compensation	$ 83	$ 0	$ 204	$ 0

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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