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Note 4 - Supplementary Cash Flows Information (Tables) | 3 Months Ended
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Jul. 31, 2024
Notes Tables |
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] |
|  | Three Months Ended July 31, |
($ in thousands) |  | 2024 |  |  | 2023 |
Cash and cash equivalents |  | $ | 15,628 |  |  | $ | 9,551 |
Restricted cash |  |  | 305 |  |  |  | 305 |
Total cash, cash equivalents, and restricted cash shown in the Consolidated Condensed Statement of Cash Flows |  | $ | 15,933 |  |  | $ | 9,856 |
|  | Three Months Ended July 31, |
($ in thousands) |  | 2024 |  |  | 2023 |
State and local income tax payments |  | $ | 91 |  |  | $ | 164 |
Federal income tax payments |  | $ | - |  |  | $ | - |

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