Note 2 Stock-based Compensation (Details)	12 Months Ended
Sep. 30, 2023
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	1 year
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	4 years

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details