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Note 15 - Share-based Compensation - Stock Option Activity (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2024
USD ($)
$ / shares
shares
Options outstanding (in shares) | shares 265,086
Options outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 38.92
Issued (in shares) | shares 0
Issued, weighted average exercise price (in dollars per share) | $ / shares $ 0
Exercised (in shares) | shares (21,700)
Exercised, weighted average exercise price (in dollars per share) | $ / shares $ 27.62
Forfeited or expired (in shares) | shares (43,686)
Forfeited or expired, weighted average exercise price (in dollars per share) | $ / shares $ 32.59
Options outstanding (in shares) | shares 199,700
Options outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 28.82
Options outstanding, weighted average remaining term (Year) 10 years 8 months 12 days
Options outstanding, intrinsic value | $ $ 256,226
Expected to vest (in shares) | shares 34,700
Expected to vest, weighted average exercise price (in dollars per share) | $ / shares $ 33.95
Expected to vest, weighted average remaining term (Year) 14 years 2 months 12 days
Expected to vest, intrinsic value | $ $ 0
Exercisable (in shares) | shares 165,000
Exercisable, weighted average exercise price (in dollars per share) | $ / shares $ 27.74
Exercisable, weighted average remaining term (Year) 9 years 10 months 24 days
Exercisable, intrinsic value | $ $ 256,226