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Note 9 - Incentive Plans (Tables) | 6 Months Ended
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Jun. 30, 2022
Notes Tables |
Shares Available Under Long-term Incentive Plan [Table Text Block] |
|  | June 30, 2022 |
Approved and authorized awards |  |  | 13,793,197 |
Awards issued under plan |  |  | (13,048,190 | )
Awards available for future grant |  |  | 745,007 |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  | Stock Options |  |  | Exercise Price |  |  | Remaining Term in Years |  |  | Intrinsic Value (in thousands) |
Outstanding at December 31, 2020 |  |  | 9,705,495 |  |  | $ | 10.00 |  |  |  | 9.7 |  |  | $ | 57,942 |
Awards granted |  |  | 442,500 |  |  | $ | 14.36 |  |  |  |  |  |  |  |  |
Exercised |  |  | (154,268 | ) |  | $ | 10.00 |  |  |  |  |  |  |  |  |
Forfeitures |  |  | (10,000 | ) |  | $ | 10.00 |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2021 |  |  | 9,983,727 |  |  | $ | 10.19 |  |  |  | 8.7 |  |  | $ | 44,395 |
Awards granted |  |  | 824,500 |  |  | $ | 29.67 |  |  |  |  |  |  |  |  |
Exercised |  |  | (12,000 | ) |  | $ | 10.00 |  |  |  |  |  |  |  |  |
Outstanding at June 30, 2022 |  |  | 10,796,227 |  |  | $ | 11.68 |  |  |  | 8.3 |  |  | $ | 152,316 |
Vested at December 31, 2021 |  |  | 8,551,070 |  |  | $ | 10.13 |  |  |  | 8.7 |  |  | $ | 38,556 |
Exercisable at December 31, 2021 |  |  | 8,551,070 |  |  | $ | 10.13 |  |  |  | 8.7 |  |  | $ | 38,556 |
Vested at June 30, 2022 |  |  | 9,268,914 |  |  | $ | 11.67 |  |  |  | 8.3 |  |  | $ | 103,055 |
Exercisable at June 30, 2022 |  |  | 9,268,914 |  |  | $ | 11.67 |  |  |  | 8.3 |  |  | $ | 103,055 |

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