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Note 7 - Employee and Director Benefits (Tables) | 6 Months Ended
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Jun. 30, 2024
Notes Tables |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  |  |  |  |  |  |  |  |  | Weighted |  |  |  |  |
|  |  |  |  |  | Weighted |  |  | Average |  |  |  |  |
|  |  |  |  |  | Average |  |  | Remaining |  |  | Aggregate |
|  |  |  |  |  | Exercise |  |  | Contractual |  |  | Intrinsic |
|  | Shares |  |  | Price |  |  | Term (years) |  |  | Value |
|  |  |  |  |  |  |  |  |  |  |  |  |  | (In Thousands) |
Six Months Ended June 30, 2024: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at January 1, 2024 |  |  | 165,800 |  |  | $ | 24.35 |  |  |  | 2.9 |  |  | $ | 7,211 |
Exercised |  |  | (23,050 | ) |  |  | 16.20 |  |  |  | 0.7 |  |  |  | 6,261 |
Outstanding at June 30, 2024 |  |  | 142,750 |  |  | $ | 25.67 |  |  |  | 2.6 |  |  | $ | 5,507 |
Exercisable at June 30, 2024 |  |  | 127,250 |  |  | $ | 23.54 |  |  |  | 2.0 |  |  | $ | 5,014 |
Six Months Ended June 30, 2023: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at January 1, 2023 |  |  | 280,000 |  |  | $ | 19.43 |  |  |  | 3.0 |  |  | $ | 14,088 |
Exercised |  |  | (87,700 | ) |  |  | 12.04 |  |  |  | 1.0 |  |  |  | 2,533 |
Forfeited |  |  | (1,000 | ) |  |  | 34.09 |  |  |  | 5.6 |  |  |  | 7 |
Outstanding at June 30, 2023 |  |  | 191,300 |  |  | $ | 22.65 |  |  |  | 3.4 |  |  | $ | 6,235 |
Exercisable at June 30, 2023 |  |  | 137,800 |  |  | $ | 16.83 |  |  |  | 1.9 |  |  | $ | 3,432 |
Share-Based Payment Arrangement, Outstanding Award, Activity, Excluding Option [Table Text Block] |
|  | Restricted Stock |  |  | Performance Shares |
|  | Shares |  |  | Weighted Average Grant Date Fair Value |  |  | Shares |  |  | Weighted Average Grant Date Fair Value |
Six Months Ended June 30, 2024: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-vested at January 1, 2024 |  |  | 158,298 |  |  | $ | 58.08 |  |  |  | 31,944 |  |  | $ | 58.25 |
Granted |  |  | 27,361 |  |  |  | 66.72 |  |  |  | 8,894 |  |  |  | 67.90 |
Vested |  |  | (45,619 | ) |  |  | 45.49 |  |  |  | (18,653 | ) |  |  | 37.05 |
Forfeited |  |  | (3,989 | ) |  |  | 71.34 |  |  |  | (2,318 | ) |  |  | 72.18 |
Non-vested at June 30, 2024 |  |  | 136,051 |  |  | $ | 63.65 |  |  |  | 19,867 |  |  | $ | 80.85 |
Six Months Ended June 30, 2023: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-vested at January 1, 2023 |  |  | 141,580 |  |  | $ | 56.39 |  |  |  | 23,852 |  |  | $ | 54.16 |
Granted |  |  | 47,309 |  |  |  | 60.40 |  |  |  | 8,091 |  |  |  | 70.29 |
Vested |  |  | (29,852 | ) |  |  | 52.27 |  |  |  | - |  |  |  | - |
Forfeited |  |  | (10,041 | ) |  |  | 63.90 |  |  |  | - |  |  |  | - |
Non-vested at June 30, 2023 |  |  | 148,996 |  |  | $ | 57.98 |  |  |  | 31,943 |  |  | $ | 58.25 |

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