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Note 7 - Income Taxes (Details Textual) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 29, 2025
Mar. 30, 2024
Mar. 29, 2025
Mar. 30, 2024
Sep. 28, 2024
Unrecognized Tax Benefits that Would Impact Effective Tax Rate $ 0.3   $ 0.3   $ 0.3
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued $ 0.3   $ 0.3   $ 0.3
Effective Income Tax Rate Reconciliation, Percent 27.20% 26.60% 27.20% 26.60%  
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent     21.00% 21.00%