Annual report [Section 13 and 15(d), not S-K Item 405]

Note 10 - Share-based Compensation (Tables)

v3.25.3
Note 10 - Share-based Compensation (Tables)
12 Months Ended
Sep. 30, 2025
Notes Tables  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   

2025

   

2024

 
                 

Selling, general and administrative

  $ 6,146,717     $ 9,379,533  

Research and development

    1,965,509       2,860,537  

Discontinued operations

    (10,049 )     1,404,335  

Total share-based compensation

  $ 8,102,177     $ 13,644,405  
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   

2025

   

2024

 

Weighted Average Assumptions:

               

Expected Volatility

    114.57 %     108.97 %

Expected Dividend Yield

    0.00 %     0.00 %

Risk-free Interest Rate

    3.95 %     4.44 %

Expected Term (in years)

    6.0       6.0  

Fair Value of Options Granted

  $ 4.59     $ 11.76  
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

    1,846,269     $ 45.92                  

Granted

    184,000       5.36                  

Exercised

                           

Forfeited

    (119,249 )     43.22                  

Outstanding at September 30, 2025

    1,911,020     $ 42.18       5.31     $  

Exercisable at September 30, 2025

    1,525,580     $ 46.93       4.45     $