v3.25.4
Note 9 - Net Loss Per Share Attributable to Common Shareholders - Anti-dilutive Stocks (Details) - shares
3 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Share-Based Payment Arrangement, Option [Member]    
Antidilutive Securities (in shares) 1,962,677 2,106,895
Warrant [Member]    
Antidilutive Securities (in shares) 860,206 804,533
Series C Convertible Preferred Stock [Member]    
Antidilutive Securities (in shares) 0 38,889
Restricted Stock [Member]    
Antidilutive Securities (in shares) 174,680 0