v3.25.1
Note 5 - Stock Incentive Plan - Options Outstanding (Details)
 3 Months Ended
Mar. 31, 2025
$ / shares
shares
Number of shares subject to options outstanding (in shares) 620,248
Weighted-average remaining contractual term (Year) 6 years 11 months 4 days
Number of shares, exercisable (in shares) 369,213
Weighted-average remaining contractual term, exercisable (Year) 5 years 2 months 8 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) 261,170
Weighted-average remaining contractual term (Year) 5 years 11 months 19 days
Number of shares, exercisable (in shares) 202,433
Weighted-average remaining contractual term, exercisable (Year) 5 years 4 months 13 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) 335,239
Weighted-average remaining contractual term (Year) 7 years 9 months 25 days
Number of shares, exercisable (in shares) 142,943
Weighted-average remaining contractual term, exercisable (Year) 5 years 3 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 8 months 23 days
Number of shares, exercisable (in shares) 22,612
Weighted-average remaining contractual term, exercisable (Year) 4 years 8 months 23 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 10 months 2 days
Number of shares, exercisable (in shares) 1,225
Weighted-average remaining contractual term, exercisable (Year) 4 years 10 months 2 days