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Note 4 - Cash, Cash Equivalents and Restricted Cash (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Schedule of Cash and Cash Equivalents [Table Text Block] |
|  | September 30, |  |  | December 31, |
|  | 2025 |  |  | 2024 |
Cash and cash equivalents |  | $ | 4,551 |  |  | $ | 2,803 |
Restricted cash |  |  | 8,699 |  |  |  | 8,958 |
Cash, cash equivalents and restricted cash |  | $ | 13,250 |  |  | $ | 11,761 |

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