Note 5 - Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Property and equipment, gross | $ 15,355 | $ 15,355 |
| Less accumulated depreciation | (8,646) | (7,876) |
| Total property and equipment, net | 6,709 | 7,479 |
| Equipment [Member] | ||
| Property and equipment, gross | 3,437 | 3,437 |
| Office Equipment [Member] | ||
| Property and equipment, gross | 178 | 178 |
| Computer Equipment [Member] | ||
| Property and equipment, gross | 459 | 459 |
| Leasehold Improvements [Member] | ||
| Property and equipment, gross | 9,983 | 9,983 |
| Construction in Progress [Member] | ||
| Property and equipment, gross | $ 1,298 | $ 1,298 |