v3.25.2
Note 5 - Share-Based Compensation - Schedule of Option Activity (Details)
6 Months Ended 12 Months Ended
Jun. 30, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Outstanding (in shares) | shares 4,385,477  
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 4.54  
Outstanding, weighted average contractual life (Year) 6 years 8 months 12 days 6 years 10 months 24 days
Outstanding, aggregate intrinsic value | $ $ 121 $ 1,307
Granted (in shares) | shares 292,489  
Granted, weighted average exercise price (in dollars per share) | $ / shares $ 1.6  
Canceled / forfeited (in shares) | shares (36,281)  
Canceled / forfeited, weighted average exercise price (in dollars per share) | $ / shares $ 85.8  
Outstanding (in shares) | shares 4,641,685 4,385,477
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 3.72 $ 4.54
Options exercisable (in shares) | shares 3,128,686  
Options exercisable, weighted average exercise price (in dollars per share) | $ / shares $ 3.61  
Options exercisable, weighted average contractual life (Year) 6 years 4 months 24 days  
Options exercisable, aggregate intrinsic value | $ $ 97  
Options vested or expected to vest (in shares) | shares 4,618,336  
Options vested or expected to vest, weighted average exercise price (in dollars per share) | $ / shares $ 3.71  
Options vested or expected to vest, weighted average contractual life (Year) 6 years 8 months 12 days  
Options vested or expected to vest, aggregate intrinsic value | $ $ 121