Note 13 - 401(k) Plan (Details Textual) - The 401k Plan [Member] - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 4.00% | |
| Defined Contribution Plan, Cost | $ 0.1 | $ 0.2 |