Quarterly report [Sections 13 or 15(d)]

Note 10 - Share-based Compensation (Details Textual)

v3.25.1
Note 10 - Share-based Compensation (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Oct. 31, 2016
Oct. 31, 2016
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Jun. 30, 2022
Mar. 31, 2018
Jul. 31, 2017
Share-Based Payment Arrangement, Expense     $ 2,223,843 $ 3,634,171 $ 4,897,948 $ 7,041,120      
Share Price (in dollars per share)     $ 0.49   $ 0.49        
Share-Based Payment Arrangement, Option [Member]                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)         3 years        
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)         10 years        
Share-Based Payment Arrangement, Expense     $ 100,000 $ 300,000 $ 400,000 $ 1,400,000      
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount     $ 5,200,000   $ 5,200,000        
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)         1 year 6 months        
Stock Appreciation Rights (SARs) [Member]                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)   10 years              
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)   $ 0.95              
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)         50,000        
Stock Appreciation Rights (SARs) [Member] | Share-Based Payment Arrangement, Employee [Member]                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)   50,000              
Stock Appreciation Rights (SARs) [Member] | Share-Based Payment Arrangement, Nonemployee [Member]                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 140,000                
The 2022 Employment Inducement Equity Incentive Plan [Member]                  
Common Stock, Capital Shares Reserved for Future Issuance (in shares)             4,000,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)     4,000,000   4,000,000        
The 2018 Equity Incentive Plan [Member]                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)     9,519,955   9,519,955        
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)               26,000,000  
The 2017 Equity Incentive Plan [Member]                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)     198,948   198,948        
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)                 4,700,000
The 2008 Stock Incentive Plan [Member]                  
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)                 0