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Note 16 - Stock-Based Compensation - Stock Purchase Plan (Details) - Employee Stock Purchase Plan - $ / shares
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Shares granted 28,746 36,964 28,421
Shares purchased 31,069 35,058 27,103
Weighted average fair value per share granted $ 11.85 $ 8.35 $ 7.88