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Note 11 - Treasury Stock and Repurchase Program (Tables) | 3 Months Ended
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Jul. 31, 2025
Notes Tables |
Class of Treasury Stock [Table Text Block] |
(in thousands except for shares and cost per share) |  | Shares |  |  | Cost Assigned |  |  | Average Cost per Share |  |  | Aggregate Purchase Price Remaining Under the Program |
Balance as of April 30, 2025 |  |  | 588,997 |  |  | $ | 15,647 |  |  | $ | 26.57 |  |  | $ | 758 |
Purchases effected in open market during the months ended: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
May 31, 2025 |  |  | 500 |  |  | $ | 20 |  |  |  | 39.33 |  |  |  | 738 |
June 30, 2025 |  |  | 981 |  |  | $ | 39 |  |  |  | 38.96 |  |  |  | 699 |
July 31, 2025 |  |  | - |  |  | $ | - |  |  |  | - |  |  |  | 699 |
Balance as of July 31, 2025 |  |  | 590,478 |  |  | $ | 15,706 |  |  | $ | 26.60 |  |  | $ | 699 |

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