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Note L - 401(k) Profit-sharing Plan (Details Textual) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 24, 2022 | Sep. 25, 2021 | Sep. 26, 2020
Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 2.5 | $ 2.3 | $ 2.4

X
- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration