Quarterly report [Sections 13 or 15(d)]

Note 12 - Share-based Compensation - Stock Options Outstanding (Details)

v3.25.1
Note 12 - Share-based Compensation - Stock Options Outstanding (Details)
 3 Months Ended
Mar. 31, 2025
$ / shares
shares
Outstanding, shares (in shares) | shares 5,051,342
Outstanding, weighted average remaining contractual life (Year) 7 years 1 month 6 days
Outstanding, weighted average exercise price (in dollars per share) $ 3.56
Exercisable, shares (in shares) | shares 2,540,986
Exercisable, weighted average remaining contractual life (Year) 5 years 7 months 6 days
Exercise Price Range 1 [Member]  
Per share exercise price, lower range (in dollars per share) $ 1
Per share exercise price, upper range (in dollars per share) $ 1.99
Outstanding, shares (in shares) | shares 199,193
Outstanding, weighted average remaining contractual life (Year) 7 years 10 months 24 days
Outstanding, weighted average exercise price (in dollars per share) $ 1.6
Exercisable, shares (in shares) | shares 100,692
Exercisable, weighted average remaining contractual life (Year) 7 years 10 months 24 days
Exercise Price Range 2 [Member]  
Per share exercise price, lower range (in dollars per share) $ 2
Per share exercise price, upper range (in dollars per share) $ 2.99
Outstanding, shares (in shares) | shares 2,877,520
Outstanding, weighted average remaining contractual life (Year) 7 years 7 months 6 days
Outstanding, weighted average exercise price (in dollars per share) $ 2.73
Exercisable, shares (in shares) | shares 1,191,425
Exercisable, weighted average remaining contractual life (Year) 6 years 8 months 12 days
Exercise Price Range 3 [Member]  
Per share exercise price, lower range (in dollars per share) $ 3
Per share exercise price, upper range (in dollars per share) $ 3.99
Outstanding, shares (in shares) | shares 311,893
Outstanding, weighted average remaining contractual life (Year) 5 years 6 months
Outstanding, weighted average exercise price (in dollars per share) $ 3.5
Exercisable, shares (in shares) | shares 211,893
Exercisable, weighted average remaining contractual life (Year) 3 years 8 months 12 days
Exercise Price Range 4 [Member]  
Per share exercise price, lower range (in dollars per share) $ 4
Per share exercise price, upper range (in dollars per share) $ 4.99
Outstanding, shares (in shares) | shares 797,182
Outstanding, weighted average remaining contractual life (Year) 5 years 1 month 6 days
Outstanding, weighted average exercise price (in dollars per share) $ 4.52
Exercisable, shares (in shares) | shares 677,182
Exercisable, weighted average remaining contractual life (Year) 4 years 3 months 18 days
Exercise Price Range 5 [Member]  
Per share exercise price, lower range (in dollars per share) $ 5
Per share exercise price, upper range (in dollars per share) $ 10
Outstanding, shares (in shares) | shares 865,554
Outstanding, weighted average remaining contractual life (Year) 7 years 9 months 18 days
Outstanding, weighted average exercise price (in dollars per share) $ 5.92
Exercisable, shares (in shares) | shares 359,794
Exercisable, weighted average remaining contractual life (Year) 5 years 2 months 12 days