Note 6 - Equity Incentive Plans - Schedule of Stock-based Compensation for Equity-based Awards (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Share-based compensation expense | $ 4,775 | $ 60 | $ 9,066 | $ 117 |
| Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense | ||||
| Share-based compensation expense | 2,703 | 35 | 5,031 | 69 |
| Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost | ||||
| Share-based compensation expense | $ 2,072 | $ 25 | $ 4,035 | $ 48 |