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Note 13 - Treasury Stock and Repurchase Program (Tables) | 12 Months Ended
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Apr. 30, 2024
Notes Tables |
Class of Treasury Stock [Table Text Block] |
($ in thousands except for cost per share) |  | Shares |  |  | Cost Assigned |  |  | Average Cost per Share |  |  | Aggregate Purchase Price Remaining under the Program
Balance as of April 30, 2019 |  |  | 336,439 |  |  | $ | 4,743 |  |  | $ | 14.10 |  |  | $ | 1,438 |  |
Purchases effected in open market |  |  | 46,840 |  |  | $ | 1,214 |  |  | $ | 25.91 |  |  | $ | - |  |
Balance as of April 30, 2020 |  |  | 383,279 |  |  | $ | 5,957 |  |  | $ | 15.54 |  |  | $ | 2,000 |  |
Purchases effected in open market (1) |  |  | 53,551 |  |  | $ | 1,526 |  |  | $ | 28.50 |  |  | $ | - |  |
Balance as of April 30, 2021 |  |  | 436,830 |  |  | $ | 7,483 |  |  | $ | 17.13 |  |  | $ | 474 |  |
Purchases effected in open market (2) |  |  | 53,327 |  |  | $ | 2,484 |  |  | $ | 46.58 |  |  | $ | - |  |
Balance as of April 30, 2022 |  |  | 490,157 |  |  | $ | 9,967 |  |  | $ | 20.33 |  |  | $ | 1,241 |  |
Purchases effected in open market (3) |  |  | 75,303 |  |  | $ | 4,704 |  |  | $ | 62.47 |  |  | $ | - |  |
Balance as of April 30, 2023 |  |  | 565,460 |  |  |  | 14,671 |  |  | $ | 25.95 |  |  | $ | 1,266 |  |
Purchases effected in open market (3) |  |  | 12,057 |  |  | $ | 523 |  |  | $ | 43.38 |  |  | $ | - |  |
Balance as of April 30, 2024 |  |  | 577,517 |  |  |  | 15,194 |  |  | $ | 26.31 |  |  | $ | 1,211 |  |

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