Note 10 - Income Taxes (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Operating Loss Carryforwards [Line Items] | ||
| Valuation Allowance, Deferred Tax Asset, Increase, Amount | $ 6,535 | $ 2,213 |
| Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 0 | $ 0 |
| Domestic Tax Authority [Member] | ||
| Operating Loss Carryforwards [Line Items] | ||
| Operating Loss Carryforwards, Total | $ 214,000 | |
| Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] | ||
| Operating Loss Carryforwards [Line Items] | ||
| Open Tax Year | 2021 2022 2023 | |
| State and Local Jurisdiction [Member] | ||
| Operating Loss Carryforwards [Line Items] | ||
| Operating Loss Carryforwards, Total | $ 156,000 | |