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Note 11 - Treasury Stock and Repurchase Program (Tables) | 6 Months Ended
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Oct. 31, 2022
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 July 31, 2022 |  | 525,186 |  | $ | 12,349 |  | $ | 23.51 |  | $ | 1,859 |
Purchases effected in open market during the months ended: |  |  |  |  |  |  |  |  |  |  |  |
August 31, 2022 |  | 3,450 |  |  | 279 |  |  | 80.85 |  |  | 1,580 |
September 30, 2022 |  | 5,681 |  |  | 313 |  |  | 55.18 |  |  | 1,267 |
Authorized October 21, 2022 |  |  |  |  |  |  |  |  |  |  | 3,000 |
October 31, 2022 |  | 8,183 |  |  | 508 |  |  | 62.04 |  |  | 2,956 |
Balance as of October 31, 2022 |  | 542,500 |  | $ | 13,449 |  | $ | 24.79 |  | $ | 2,956 |

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