Quarterly report [Sections 13 or 15(d)]

Note 10 - Share-based Compensation (Tables)

v3.25.2
Note 10 - Share-based Compensation (Tables)
9 Months Ended
Jun. 30, 2025
Notes Tables  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   

Three Months Ended

   

Nine Months Ended

 
   

June 30,

   

June 30,

 
   

2025

   

2024

   

2025

   

2024

 
                                 

Selling, general and administrative

  $ 1,290,912     $ 2,310,153     $ 4,914,586     $ 7,005,004  

Research and development

    378,516       758,532       1,662,839       2,077,235  

Discontinued operations

          307,721       (10,049 )     1,335,287  

Share-based compensation

  $ 1,669,428     $ 3,376,406     $ 6,567,376     $ 10,417,526  
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   

Three Months Ended

   

Nine Months Ended

 
   

June 30,

   

June 30,

 
   

2025

   

2024

   

2025

   

2024

 

Weighted Average Assumptions:

                               

Expected volatility

    115.3 %     109.6 %     114.6 %     108.9 %

Expected dividend yield

    0.0 %     0.0 %     0.0 %     0.0 %

Risk-free interest rate

    4.0 %     4.5 %     4.0 %     4.5 %

Expected term (in years)

    6.0       6.0       6.0       6.0  

Fair value of options granted

  $ 4.32     $ 13.74     $ 4.59     $ 12.16  
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

    1,846,243     $ 45.92                  

Granted

    184,000     $ 5.36                  

Exercised

        $                  

Forfeited and expired

    (78,175 )   $ 48.70                  

Outstanding at June 30, 2025

    1,952,068     $ 41.98       5.49     $ 136,465  

Exercisable at June 30, 2025

    1,553,904     $ 46.88       4.61     $ 8,180