Note 3 - Share-based Compensation (Details Textual) $ in Millions |
3 Months Ended |
|---|---|
|
Mar. 31, 2026
USD ($)
shares
| |
| Restricted Stock Units (RSUs) [Member] | |
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ | $ 96.8 |
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition | 3 years 2 months 12 days |
| Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period | shares | 43,421 |
| Performance Shares [Member] | |
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ | $ 49.5 |
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition | 2 years 4 months 24 days |
| Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period | shares | 81,508 |