v3.25.2
Note 5 - Stock Incentive Plan - Options Outstanding (Details)
 6 Months Ended
Jun. 30, 2025
$ / shares
shares
Number of shares subject to options outstanding (in shares) 626,531
Weighted-average remaining contractual term (Year) 6 years 8 months 15 days
Number of shares, exercisable (in shares) 407,724
Weighted-average remaining contractual term, exercisable (Year) 5 years 3 months 29 days
Price Range 1 [Member]  
Lower exercise price (in dollars per share) | $ / shares $ 0
Upper exercise price (in dollars per share) | $ / shares $ 25
Number of shares subject to options outstanding (in shares) 258,004
Weighted-average remaining contractual term (Year) 5 years 8 months 4 days
Number of shares, exercisable (in shares) 211,658
Weighted-average remaining contractual term, exercisable (Year) 5 years 2 months 19 days
Price Range 2 [Member]  
Lower exercise price (in dollars per share) | $ / shares $ 25.01
Upper exercise price (in dollars per share) | $ / shares $ 50
Number of shares subject to options outstanding (in shares) 344,688
Weighted-average remaining contractual term (Year) 7 years 7 months 20 days
Number of shares, exercisable (in shares) 172,229
Weighted-average remaining contractual term, exercisable (Year) 5 years 6 months 29 days
Price Range 3 [Member]  
Lower exercise price (in dollars per share) | $ / shares $ 50.01
Upper exercise price (in dollars per share) | $ / shares $ 75
Number of shares subject to options outstanding (in shares) 22,614
Weighted-average remaining contractual term (Year) 4 years 5 months 23 days
Number of shares, exercisable (in shares) 22,612
Weighted-average remaining contractual term, exercisable (Year) 4 years 5 months 26 days
Price Range 4 [Member]  
Lower exercise price (in dollars per share) | $ / shares $ 75.01
Upper exercise price (in dollars per share) | $ / shares $ 100
Number of shares subject to options outstanding (in shares) 1,225
Weighted-average remaining contractual term (Year) 4 years 7 months 2 days
Number of shares, exercisable (in shares) 1,225
Weighted-average remaining contractual term, exercisable (Year) 4 years 7 months 2 days