Note 8 - Share-based Compensation - Share-based Compensation Expenses 2 (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Share-Based Payment Arrangement, Expense | $ 791 | $ 340 |
| Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense | ||
| Share-Based Payment Arrangement, Expense | 523 | 270 |
| Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||
| Share-Based Payment Arrangement, Expense | 152 | 46 |
| Location, Statement of Income, Balance [Axis]: us-gaap:SellingAndMarketingExpense | ||
| Share-Based Payment Arrangement, Expense | $ 116 | $ 24 |