Note 12 - Share-based Compensation - Share-based Compensation Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Total share-based compensation | $ 771 | $ 443 | $ 1,638 | $ 931 |
| General and Administrative Expense [Member] | ||||
| Total share-based compensation | 538 | 336 | 1,216 | 629 |
| Research and Development Expense [Member] | ||||
| Total share-based compensation | $ 233 | $ 107 | $ 422 | $ 302 |
| X | ||||||||||
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|