Annual report [Section 13 and 15(d), not S-K Item 405]

Note 5 - Stock Incentive Plan - Options Outstanding (Details)

v3.26.1
Note 5 - Stock Incentive Plan - Options Outstanding (Details)
 12 Months Ended
Dec. 31, 2025
$ / shares
shares
Number of shares subject to options outstanding (in shares) 616,555
Weighted-average remaining contractual term (Year) 6 years 11 months 15 days
Number of shares, exercisable (in shares) 411,331
Weighted-average remaining contractual term, exercisable (Year) 5 years 10 months 9 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) 207,701
Weighted-average remaining contractual term (Year) 6 years 10 days
Number of shares, exercisable (in shares) 181,385
Weighted-average remaining contractual term, exercisable (Year) 5 years 9 months 21 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) 331,453
Weighted-average remaining contractual term (Year) 7 years 3 months 3 days
Number of shares, exercisable (in shares) 207,239
Weighted-average remaining contractual term, exercisable (Year) 6 years 1 month 6 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) 23,199
Weighted-average remaining contractual term (Year) 4 years 5 months 1 day
Number of shares, exercisable (in shares) 21,482
Weighted-average remaining contractual term, exercisable (Year) 3 years 11 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) 50,202
Weighted-average remaining contractual term (Year) 9 years 9 months 10 days
Number of shares, exercisable (in shares) 1,225
Weighted-average remaining contractual term, exercisable (Year) 4 years 29 days
Price Range 5 [Member]  
Lower exercise price (in dollars per share) | $ / shares $ 100.01
Upper exercise price (in dollars per share) | $ / shares $ 125
Number of shares subject to options outstanding (in shares) 4,000
Weighted-average remaining contractual term (Year) 9 years 9 months 14 days
Number of shares, exercisable (in shares) 0