Quarterly report [Sections 13 or 15(d)]

Note 5 - Stock Incentive Plan - Option Activity (Details)

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Note 5 - Stock Incentive Plan - Option Activity (Details) - $ / shares
 6 Months Ended
Jun. 30, 2026
Balance (in shares) 616,555
Balance, exercise price (in dollars per share) $ 30.77
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) [1] 65,312
Granted, exercise price (in dollars per share) [1] $ 55.08
Forfeited(2)(3) (in shares) [2],[3] (3,266)
Forfeited, exercise price (in dollars per share) [2],[3] $ 56.63
Exercised (in shares) (308)
Exercised, exercise price (in dollars per share) $ 24.61
Balance (in shares) 678,293
Balance, exercise price (in dollars per share) $ 32.99
Unvested options outstanding expected to vest(3) (in shares) [3] 223,881
Unvested options outstanding expected to vest(3), exercise price (in dollars per share) [3] $ 45.44
[1] 65,312 options vest as follows: options to purchase 2,000 shares of the Company’s common stock vest monthly over one year; options to purchase 1,284 shares of the Company's common stock vest quarterly over half a year; options to purchase 62,028 shares of the Company’s common stock vest 6/48ths on the six-month anniversary of the vesting commencement date and 1/48th per month thereafter.
[2] Forfeited options represent unvested shares and vested, unexercised and expired shares related to employee terminations.?
[3] Forfeitures only include known forfeitures to date as the Company accounts for forfeitures as they occur.