Quarterly report pursuant to Section 13 or 15(d)

Note 10 -Share-based Compensation - Weighted Average Assumptions (Details)

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Note 10 -Share-based Compensation - Weighted Average Assumptions (Details) - $ / shares
3 Months Ended 9 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Expected volatility 109.64% 104.96% 108.86% 101.37%
Expected dividend yield 0.00% 0.00% 0.00% 0.00%
Risk-free interest rate 4.48% 3.51% 4.49% 3.92%
Expected term (in years) (Year) 6 years 6 years 6 years 6 years
Fair value of options granted (in dollars per share) $ 1.37 $ 1.12 $ 1.22 $ 5.55