v3.25.1
Note 15 - Equity Incentive Plans - Stock Option Activity (Details) - $ / shares
12 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Outstanding, options (in shares) 52,762  
Outstanding, options, weighted average exercise price (in dollars per share) $ 18.37  
Outstanding, options, weighted average remaining contractual life (Year) 8 years 9 months 18 days 9 years 1 month 6 days
Granted, options (in shares) 113,500 49,212
Granted, options, weighted average exercise price (in dollars per share) $ 1.74 $ 4
Granted, options, weighted average remaining contractual life (Year) 9 years 2 months 12 days  
Forfeited/Cancelled, options (in shares) (16,610)  
Forfeited/Cancelled, options, weighted average exercise price (in dollars per share) $ 3.2  
Expired, options (in shares) (3,113)  
Expired, options, weighted average exercise price (in dollars per share) $ 66.84  
Outstanding, options (in shares) 146,539 52,762
Outstanding, options, weighted average exercise price (in dollars per share) $ 6.18 $ 18.37
Exercisable, options (in shares) 25,068  
Exercisable, options, weighted average exercise price (in dollars per share) $ 26.06  
Exercisable, options, weighted average remaining contractual life (Year) 8 years