Note 9 - Stock-based Compensation - Summary of Compensation Costs Related to Stock-Based Compensation Awards 2 (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Allocated share based compensation expense | $ 762 | $ 633 | $ 1,797 | $ 1,279 |
| Location, Statement of Income, Balance [Axis]: us-gaap:CostOfRevenue | ||||
| Allocated share based compensation expense | 65 | 47 | 130 | 110 |
| Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense | ||||
| Allocated share based compensation expense | 164 | 110 | 331 | 220 |
| Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense | ||||
| Allocated share based compensation expense | $ 533 | $ 476 | $ 1,336 | $ 949 |