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Note 2 - Summary of Significant Accounting Policies - Summary of Stock-based Compensation Expense (Details) | 12 Months Ended
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Sep. 30, 2024 USD ($)
Stock based compensation | $ 202,000
Total tax benefit | (51,000)
Net decrease in net income | 151,000
Share-Based Payment Arrangement [Member] |
Stock based compensation | $ 202,000

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