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Note 8 - Segment Reporting (Tables) | 3 Months Ended
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Mar. 31, 2026
Notes Tables |
Segment Reporting [Table Text Block] |
|  | Three Months Ended March 31, |
|  | 2026 |  |  | 2025 |
Product revenue |  | $ | 401 |  |  | $ | — |
Adjusted cost of product revenue1 |  |  | 280 |  |  |  | — |
Cross platform research and engineering2 |  |  | 4,666 |  |  |  | 3,465 |
R&D manufacturing and engineering3 |  |  | 2,205 |  |  |  | 1,636 |
Clinical and regulatory4 |  |  | 3,027 |  |  |  | 1,530 |
General and administrative5 |  |  | 5,054 |  |  |  | 3,791 |
Sales and marketing6 |  |  | 2,154 |  |  |  | 1,659 |
Other segment items7 |  |  | 2,165 |  |  |  | 5,963 |
Total other income, net |  |  | (569 | ) |  |  | (1,249 | )
Net loss |  | $ | (18,581 | ) |  | $ | (16,795 | )

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