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Note 6 - Capital Shares (Tables)
6 Months Ended
Mar. 31, 2025
Notes Tables  
Schedule of Preferred Units [Table Text Block]
   

Series B-1 Preferred Shares (#)

   

Series B-1 Preferred Shares

 

Six Months Ended March 31, 2025

               

Balance - September 30, 2024

    -       -  
                 

Issuance of Series B-1 Preferred Shares

    834     $ 8,340,000  

Series B-1 Preferred Shares issuance costs

    -       (171,937 )
                 
                 

Balance - March 31, 2025

    834     $ 8,168,063  
   

Series A-1 Preferred Shares (#)

   

Series A-1 Preferred Shares

 

Six Months Ended March 31, 2025

               

Balance - September 30, 2024

    -       -  
                 

Issuance of Series A-1 Preferred Shares

    150       998,915  

Series A-1 Preferred Shares issuance costs

    -       (43,220 )

Preferred return on Series A-1 Preferred Shares

    -       62,055  
                 
                 

Balance - March 31, 2025

    150     $ 1,017,750  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
   

Number of Warrant Shares

(#)

   

Weighted Average Exercise Price

 

Six Months Ended March 31, 2025

               

Balance - September 30, 2024

    609,717     $ 21.74  
                 
Issued     326,560       3.45  
Expired     (1,687 )     22.40  
                 
                 

Balance - March 31, 2025

    934,590     $ 15.35  
                 
Six Months Ended March 31, 2024                

Balance - September 30, 2023

    720,909     $ 19.51  
                 
Expired     (110,122 )     7.00  
                 
                 

Balance - March 31, 2024

    610,787     $ 21.76  

Number of Warrants (#)

   

Exercise Prices

   

Expiry Dates

173,614     $ 10.50    

December 2025

15,627     $ 56.00    

February 2026

27,399     $ 31.94    

March 2027

391,390     $ 24.64    

September 2027

326,560     $ 3.45    

October 2029

934,590              
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
   

Six Months Ended March 31, 2025

 
   

Class A Pref Share

 
         

Risk free interest rate

    4.14 %

Expected life

 

5 years

 

Expected share price volatility

    91.24 %

Expected dividend yield

    0.00 %
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
   

Number of Options (#)

   

Weighted Average Exercise Price

   

Weighted Average Grant Date Fair Value

 

Six Months Ended March 31, 2025

                       

Balance - September 30, 2024

    383,040     $ 24.93     $ 18.33  
                         

Expired

    (374 )     246.96       246.96  
                         

Balance - March 31, 2025

    382,666     $ 24.66     $ 18.10  
                         

Six Months Ended March 31, 2024

                       

Balance - September 30, 2023

    420,615     $ 25.60     $ 18.84  
                         

Granted

    500       4.10       3.10  

Forfeited

    (1,333 )     15.55       11.08  

Expired

    (106 )     596.82       596.82  
                         

Balance - March 31, 2024

    419,676     $ 25.47     $ 18.70  
Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

Number of Options (#) 

 

Exercisable at 
March 31, 2025 
(#)  

   

Range of Exercise Prices 

 

Expiry Dates

 37,719

 

 37,719

  C$

15.12

 

August 2027 - Dec 2028

 43,031

 

 43,031

  $

22.12

 

Feb 2030

 51,006

 

 51,006

  $

52.08 - 56.49 

 

September 2030 - Oct 2030

 81,041

 

 81,041

  $

36.75 - 40.18 

 

March 2025 - Sep 2031

 58,753

 

 57,304

  $

25.97

 

March 2025 - Feb 2032

 111,116

 

 70,025

  $

4.10 - 10.01 

 

March 2025 - Oct 2033

 382,666

 

 340,126

         
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   

Six Months Ended March 31, 2024

 
         

Risk free interest rate

    4.92 %

Expected life

 

5 years

 

Expected share price volatility

    97.26 %

Expected dividend yield

    0.00 %
Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]
   

Number of RSU (#)

   

Weighted Average Grant Date Fair Value

 

Six Months Ended March 31, 2025

               

Balance - September 30, 2024

    63,204     $ 5.10  
                 

Granted

    37,429       2.39  

Exercised

    (2,486 )     5.60  
                 

Balance - March 31, 2025

    98,147     $ 4.06  
                 
                 

Six Months Ended March 31, 2024

               

Balance - September 30, 2023

    33,045     $ 5.60  
                 

Granted

    8,651       4.77  
                 

Balance - March 31, 2024

    41,696     $ 5.43  
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
   

Number of RSU (#)

   

Expiry Date

Fully-vested RSUs

    98,147    

August 2033 - March 2035