v3.26.3
Note 15 - Equity Incentive Plans - Stock Option Activity (Details) - $ / shares
12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Outstanding, options (in shares) 211,618  
Outstanding, options, weighted average exercise price (in dollars per share) $ 4.51  
Outstanding, options, weighted average remaining contractual life (Year) 7 years 4 months 24 days 8 years 3 months 18 days
Granted, options (in shares) 0 87,500
Granted, options, weighted average exercise price (in dollars per share) $ 0 $ 1.83
Forfeited/cancelled, options (in shares) (2,792)  
Forfeited/Cancelled, options, weighted average exercise price (in dollars per share) $ 1.99  
Expired, options (in shares) (6,561)  
Expired, options, weighted average exercise price (in dollars per share) $ 10.35  
Outstanding, options (in shares) 202,265 211,618
Outstanding, options, weighted average exercise price (in dollars per share) $ 4.36 $ 4.51
Exercisable, options (in shares) 161,529  
Exercisable, options, weighted average exercise price (in dollars per share) $ 5  
Exercisable, options, weighted average remaining contractual life (Year) 7 years 2 months 12 days