Note 3 - Share-based Compensation (Details Textual) $ in Millions |
3 Months Ended | 9 Months Ended |
|---|---|---|
|
Sep. 30, 2026
USD ($)
shares
|
Sep. 30, 2026
USD ($)
shares
|
|
| Restricted Stock Units (RSUs) [Member] | ||
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ | $ 70.9 | $ 70.9 |
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition | 3 years 6 months | |
| Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period | shares | 12,804 | 56,354 |
| Performance Shares [Member] | ||
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ | $ 38.5 | $ 38.5 |
| Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition | 2 years | |
| Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period | shares | 81,508 |