Note 6 - Income Taxes (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
|
| Deferred Tax Assets, Net | $ 527,000 | $ 527,000 | $ 533,500 | ||
| Deferred Tax Assets, Valuation Allowance | 511,000 | 511,000 | $ 533,000 | ||
| Deferred Income Tax Expense (Benefit) | (18,100) | (15,420) | $ 32 | ||
| Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | $ (27,000) | ||||
| SPO [Member] | |||||
| Deferred Tax Assets, Net | 51,100 | 51,100 | |||
| Deferred Tax Assets, Valuation Allowance | $ 51,100 | $ 51,100 | |||