Note 16 - Equity Incentive Plans - Summary of Stock-based Compensation 2 (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Share-Based Payment Arrangement, Expense | $ 208 | $ 100 |
| Disaggregation of Income Statement Expense, Caption, Identifier [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||
| Share-Based Payment Arrangement, Expense | 36 | 43 |
| Disaggregation of Income Statement Expense, Caption, Identifier [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense | ||
| Share-Based Payment Arrangement, Expense | $ 172 | $ 57 |