Note 13 - Income Taxes (Details Textual) - USD ($) $ in Thousands |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2012 |
|---|---|---|---|---|
| Unrecognized Tax Benefits | $ 0 | $ 0 | ||
| Operating Loss Carryforwards | $ 28,640 | $ 50,771 | $ 76,396 | $ 16,300 |
| Operating Loss Carryforwards, Estimate of Annual Use Limitation | 600 | |||
| Operating Loss Carryforwards, Estimate of Expiring Unused | $ 6,700 |