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Note 7 - Related Party Transactions (Tables) | 9 Months Ended
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Jan. 31, 2024
Notes Tables |
Schedule of Non Voting Revenues Interest and Non Voting Profits Interests [Table Text Block] |
|  | Three Months Ended January 31, |  |  | Nine Months Ended January 31, |
($ in thousands) |  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Non-voting revenues interest in EAM |  | $ | 3,083 |  |  | $ | 2,512 |  |  | $ | 8,420 |  |  | $ | 7,917 |
Non-voting profits interest in EAM |  |  | 406 |  |  |  | 173 |  |  |  | 921 |  |  |  | 599 |
|  | $ | 3,489 |  |  | $ | 2,685 |  |  | $ | 9,341 |  |  | $ | 8,516 |

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