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Note 4 - Supplementary Cash Flows Information (Tables) | 6 Months Ended
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Oct. 31, 2019
Notes Tables |
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] |
|  | Six months Ended October 31, |
($ in thousands) |  | 2019 |  |  | 2018 |
Cash and cash equivalents |  | $ | 4,631 |  |  | $ | 4,585 |
Restricted cash |  |  | 469 |  |  |  | 469 |
Total cash, cash equivalents, and restricted cash shown in the Consolidated Condensed Statement of Cash Flows |  | $ | 5,100 |  |  | $ | 5,054 |
|  | Six Months Ended October 31, |
($ in thousands) |  | 2019 |  |  | 2018 |
State and local income tax payments |  | $ | 739 |  |  | $ | 119 |
Federal income tax payments to the Parent |  |  | 1,950 |  |  |  | 1,300 |

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