v3.25.2
Note 11 - Share-based Compensation (Details Textual) - USD ($)
shares in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Sep. 30, 2024
Deferred Compensation Share-Based Arrangements, Liability, Current and Noncurrent $ 66,674   $ 66,674   $ 356,206
Share-Based Payment Arrangement, Expense 24,744,792 $ 13,564,762 67,016,811 $ 29,174,038  
Research and Development Expense [Member]          
Share-Based Payment Arrangement, Expense 6,100,000   9,200,000    
Share-Based Payment Arrangement, Employee [Member]          
Accrued Liabilities and Other Liabilities 200,000   200,000    
Deferred Compensation Share-Based Arrangements, Liability, Current and Noncurrent 200,000   200,000    
Share Based Payment Arrangement, Consultants [Member]          
Deferred Compensation Share-Based Arrangements, Liability, Current and Noncurrent 0   0    
Prepaid Expense, Noncurrent $ 5,000,000   5,000,000    
CEO Award Incentive Plans [Member]          
Share Based Compensation Arrangement Award Payment Accrual for Future Awards Amount     $ 1,200,000    
Employees and Consultants [Member] | Equity Incentives Plan [Member] | Common Stock [Member]          
Common Stock, Capital Shares Reserved for Future Issuance (in shares) 18.6   18.6    
Chief Executive Officer [Member]          
Share-Based Payment Arrangement, Expense $ 330,763 $ 1,415,059 $ (212,691) $ (4,650,599)  
Chief Executive Officer [Member] | CEO Award Incentive Plans [Member]          
Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Award Revaluation, Income (Cost) Recognition $ 200,000   $ 200,000    
Chief Executive Officer [Member] | CEO Award Incentive Plans [Member] | Minimum [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Percent of Shares to be Issued     1.00%    
Chief Executive Officer [Member] | CEO Award Incentive Plans [Member] | Maximum [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Percent of Shares to be Issued     3.00%