Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Share-based Compensation (Tables)

v3.25.0.1
Note 10 - Share-based Compensation (Tables)
3 Months Ended
Dec. 31, 2024
Notes Tables  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   

Three Months Ended

 
   

December 31,

 
   

2024

   

2023

 
                 

Selling, general and administrative

  $ 2,004,716     $ 2,400,424  

Research and development

    679,438       483,379  

Discontinued operations

    (10,049 )     523,146  

Share-based compensation

  $ 2,674,105     $ 3,406,949  
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   

Three Months Ended

 
   

December 31,

 
   

2024

   

2023

 

Weighted Average Assumptions:

               

Expected volatility

    109.9 %     104.0 %

Expected dividend yield

    0.0 %     0.0 %

Risk-free interest rate

    3.6 %     4.7 %

Expected term (in years)

    6.0       6.0  

Fair value of options granted

  $ 0.64     $ 0.60  
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
           

Weighted Average

         
                   

Remaining

   

Aggregate

 
   

Number of

   

Exercise Price

   

Contractual Term

   

Intrinsic

 
   

Shares

   

Per Share

   

(years)

   

Value

 
                                 

Outstanding at September 30, 2024

    18,462,428     $ 4.59                  

Granted

    240,000     $ 0.77                  

Exercised

        $                  

Forfeited and expired

    (554,867 )   $ 5.52                  

Outstanding at December 31, 2024

    18,147,561     $ 4.51       5.76     $ 16,944  

Exercisable at December 31, 2024

    14,133,583     $ 4.76       4.92     $