Note 14 - Income Taxes (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | $ 1,400 | $ 4,300 |
| Deferred Tax Assets, Valuation Allowance | 22,126 | 20,697 |
| Unrecognized Tax Benefits | 0 | $ 0 |
| Domestic Tax Jurisdiction [Member] | ||
| Operating Loss Carryforwards | $ 44,300 | |
| Operating Loss Carryforwards, Taxable Income Offsetable, Percent | 80.00% | |
| Open Tax Year | 2022 2023 2024 | |
| Domestic Tax Jurisdiction [Member] | Research Tax Credit Carryforward [Member] | ||
| Tax Credit Carryforward, Amount | $ 300 | |
| State and Local Jurisdiction [Member] | ||
| Operating Loss Carryforwards | 79,900 | |
| Operating Loss Carryforwards Subject to Expiration | $ 36,900 | |
| Open Tax Year | 2021 2022 2023 2024 | |