Note 15 - Commitments and Contingencies (Details Textual) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Gain (Loss) from Litigation Settlement | $ (0.0) | $ 33.0 |
| Praxair/Linde [Member] | ||
| Litigation Settlement, Amount Awarded from Other Party | 66.0 | |
| Litigation Settlement Interest | 23.5 | |
| Gain (Loss) from Litigation Settlement | $ 33.0 | |
| Litigation Settlement, Cash Tax Amount to be Paid | $ 8.0 | |