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Note 12 - Stock-based Compensation - Summary of Outstanding Options (Details)
 9 Months Ended
Sep. 30, 2024
USD ($)
$ / shares
shares
Outstanding (in shares) | shares 223,406
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 28.52
Issued (in shares) | shares 0
Issued, weighted average exercise price (in dollars per share) | $ / shares $ 0
Exercised (in shares) | shares (4,675)
Exercised, weighted average exercise price (in dollars per share) | $ / shares $ 15.3
Expired/Forfeited (in shares) | shares (2,000)
Expired/Forfeited, weighted average exercise price (in dollars per share) | $ / shares $ 15.3
Outstanding (in shares) | shares 216,731
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 28.93
Outstanding, weighted average remaining contractual life (Year) 1 year 4 months 24 days
Outstanding, aggregate intrinsic value | $ $ 1,851,836
Exercisable (in shares) | shares 216,731
Exercisable, weighted average exercise price (in dollars per share) | $ / shares $ 28.93
Exercisable, weighted average remaining contractual life (Year) 1 year 4 months 24 days
Exercisable, aggregate intrinsic value | $ $ 1,851,836