v3.26.1
Note 9 - Stockholders' Equity - Option Activity (Details) - The 2019 Plan [Member] - USD ($)
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Options outstanding (in shares) 33,907,621 25,555,170
Options outstanding, exercise price (in dollars per share) $ 0.58 $ 0.42
Exercised (in shares) 0 0
Exercised, exercise price (in dollars per share) $ 0 $ 0
Forfeited (in shares) (30,000) 0
Forfeited, exercise price (in dollars per share) $ 0.96 $ 0
Expired (in shares) 0 (19,100)
Expired, exercise price (in dollars per share) $ 0 $ 0.74
Granted (in shares) 2,058,956 8,598,951
Granted, exercise price (in dollars per share) $ 1.28 $ 1.06
Options outstanding (in shares) 35,936,577 34,135,021
Options outstanding, exercise price (in dollars per share) $ 0.62 $ 0.58
Options outstanding, intrinsic value $ 23,375,510 $ 15,648,824
Options exercisable (in shares) 9,299,537 6,746,966
Options exercisable, exercise price (in dollars per share) $ 0.61 $ 0.66
Options exercisable, intrinsic value $ 6,242,495 $ 2,627,793
Weighted average fair value of options granted (in dollars per share) $ 0.94 $ 0.82
Exercise of options, net of fees (in shares) (0) 0