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Note 6 - Share-based Compensation and Post-retirement Benefits - Summary of Share-based Compensation Expense (Benefit) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Dec. 24, 2022 | Dec. 25, 2021
Stock options | $ 1,100 | $ 996
The above compensation is net of tax benefits | 139 | 87
Share-Based Payment Arrangement, Option [Member] |  |
Stock options | 620 | 814
Stock Purchase Plan [Member] |  |
Stock options | 227 | 60
Stock Issued to Outside Directors [Member] |  |
Stock options | 0 | 11
Restricted Stock Units (RSUs) [Member] |  |
Stock options | 181 | 72
Performance Shares [Member] |  |
Stock options | $ 72 | $ 39

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- 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 + Details
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