v3.26.1
Note 9 - Warrants (Tables)
9 Months Ended
Jun. 30, 2026
Common Stock Purchase Warrants [Member]  
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
  

Number of shares

  

Weighted-average exercise price

 

Expiration

Exercisable at $20.16 per share

  5,063   20.16 

April 2028

   5,063  $119.56  
Equity Classified Warrants [Member]  
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
  

Number of shares

  

Weighted-average exercise price

  

Weighted-average remaining contractual term (in years)

  

Aggregate intrinsic value (in thousands)

 

Outstanding at September 30, 2025

  5,901  $244.06   3.42  $- 

Granted

  -   -   -   - 

Exercised

  -   -   -   - 

Forfeited

  (838)  1,348.16   -   - 

Outstanding at June 30, 2026

  5,063   20.16   1.95   - 
                 

Exercisable at June 30, 2026

  5,063  $20.16   -  $-