Note 10 - Related Party Transactions (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
|
| Accounts Payable, Current | $ 950 | $ 950 | $ 1,159 | ||
| Other Assets, Noncurrent | 13,278 | 13,278 | 13,900 | ||
| Affiliated Entity [Member] | |||||
| Accounts Payable, Current | 500 | 500 | 700 | ||
| Other Assets, Current | 100 | 100 | 200 | ||
| WPPLP [Member] | |||||
| Accounts Payable, Current | 100 | 100 | 100 | ||
| Operating Lease, Liability | 3,400 | 3,400 | 3,400 | ||
| Operating Costs and Expenses | 200 | $ 100 | 1,400 | $ 300 | |
| Other Assets, Noncurrent | 1,100 | 1,100 | 1,100 | ||
| Operating Lease, Right-of-Use Asset | $ 3,400 | $ 3,400 | $ 3,400 | ||