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Note 6 - Restricted and Unrestricted Cash (Tables) | 12 Months Ended
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Jun. 30, 2022
Notes Tables |
Restrictions on Cash and Cash Equivalents [Table Text Block] |
|  |  | June 30, |
(dollars in thousands) |  | 2022 |  |  | 2021 |
Cash and cash equivalents |  | $ | 22,314 |  |  | $ | 14,436 |
Restricted cash |  |  | 1,000 |  |  |  | 1,000 |
Total cash, cash equivalents, and restricted cash |  | $ | 23,314 |  |  | $ | 15,436 |

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