v3.26.3
Note 12 - Equity Transactions and Stock-based Compensation - Summary of the Company's Stock Option Activity, and Related Information (Details) - $ / shares
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Balance (in shares) 4,481,350 4,749,183
Balance, weighted average exercise price (in dollars per share) $ 0.34 $ 0.34
Granted (in shares) 726,500 890,000
Granted, weighted average exercise price (in dollars per share) $ 0.29 $ 0.29
Exercised (in shares) 0 (960,000)
Exercised, weighted average exercise price (in dollars per share) $ 0 $ 0.09
Terminated (in shares) (52,666) (11,833)
Terminated, weighted average exercise price (in dollars per share) $ 0.3 $ 0.24
Expired (in shares) (41,834) (186,000)
Expired, weighted average exercise price (in dollars per share) $ 0.54 $ 0.39
Balance (in shares) 5,113,350 4,481,350
Balance, weighted average exercise price (in dollars per share) $ 0.38 $ 0.34
Exercisable (in shares) 3,899,350 3,277,517
Exercisable, weighted average exercise price (in dollars per share) $ 0.4 $ 0.42