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Note 6 - Equity - Summary of Restricted Awards Activity (Details) $ / shares in Units, $ in Thousands |  |  |  | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 15, 2024 USD ($) | Mar. 15, 2023 USD ($) $ / shares | Dec. 08, 2022 $ / shares | Mar. 31, 2024 USD ($) $ / shares shares | Mar. 31, 2023 USD ($) | Jun. 30, 2022 | Feb. 01, 2024 $ / shares | Dec. 06, 2023 $ / shares | Dec. 31, 2022 USD ($)
Compensation costs |  |  |  | $ 4,700 | $ 2,900 |  |  |  |
Incremental compensation costs associated with modifications |  |  |  | 1,200 |  |  |  |  |
Incremental value |  |  |  | 1,800 |  |  |  |  |
Reversal of previously recognized compensation expense |  |  |  | 600 |  |  |  |  |
Pre-modified restricted stock award |  |  |  | 300 |  |  |  |  |
Forfeiture of restricted stock units and performance stock units |  |  |  | 300 |  |  |  |  |
Dividend declared | $ / shares |  |  | $ 0.125 |  |  |  |  |  |
Dividend payable |  | $ 5,600 |  | $ 33 | $ 322 |  |  |  | $ 5,500
Dividends paid | $ / shares |  | $ 0.125 |  |  |  |  |  |  |
Percentage dividend from financial performance of carbon |  |  |  |  |  | 20 |  |  |
Class A Common Stock |  |  |  |  |  |  |  |  |
Dividends paid amount | $ 6,000 |  |  |  |  |  |  |  |
Payment of dividends | 6,100 |  |  |  |  |  |  |  |
Per share amount of a dividend declared | $ / shares |  |  |  |  |  |  |  | $ 0.1375 |
Class B Common Stock |  |  |  |  |  |  |  |  |
Granted (in shares) | shares |  |  |  | 0 |  |  |  |  |
Dividend payable per share | $ / shares |  |  |  |  |  |  | $ 0.2416 |  |
Payment of dividends | $ 2,100 |  |  |  |  |  |  |  |
Restricted Stock |  |  |  |  |  |  |  |  |
Fair value of awards |  |  |  | $ 2,500 |  |  |  |  |
Vesting period |  |  |  | 3 years |  |  |  |  |
Restricted Stock Units |  |  |  |  |  |  |  |  |
Granted (in shares) | shares |  |  |  | 302,699 |  |  |  |  |
Granted, Weighted average grant date fair value (in dollars per share) | $ / shares |  |  |  | $ 17.58 |  |  |  |  |
Fair value of awards |  |  |  | $ 5,300 |  |  |  |  |
Vesting period |  |  |  | 3 years |  |  |  |  |
Shares delivered per unit awarded | shares |  |  |  | 1 |  |  |  |  |
Payment of dividends |  |  |  | $ 100 |  |  |  |  |
Performance Stock Units |  |  |  |  |  |  |  |  |
Vesting period |  |  |  | 3 years |  |  |  |  |
Executives and Employees | Restricted Stock |  |  |  |  |  |  |  |  |
Granted (in shares) | shares |  |  |  | 179,028 |  |  |  |  |
Fair value of awards |  |  |  | $ 3,100 |  |  |  |  |
Executives and Employees | Performance Stock Units |  |  |  |  |  |  |  |  |
Granted (in shares) | shares |  |  |  | 315,941 |  |  |  |  |
Granted, Weighted average grant date fair value (in dollars per share) | $ / shares |  |  |  | $ 28.72 |  |  |  |  |
Fair value of awards |  |  |  | $ 9,100 |  |  |  |  |
Vesting period |  |  |  | 3 years |  |  |  |  |
Shares delivered per unit awarded | shares |  |  |  | 1 |  |  |  |  |
Executives and Employees | Performance Stock Units | Minimum |  |  |  |  |  |  |  |  |
Potential earnings (as a percentage) |  |  |  | 0.00% |  |  |  |  |
Executives and Employees | Performance Stock Units | Maximum |  |  |  |  |  |  |  |  |
Potential earnings (as a percentage) |  |  |  | 200.00% |  |  |  |  |
Directors | Restricted Stock |  |  |  |  |  |  |  |  |
Fair value of awards |  |  |  | $ 600 |  |  |  |  |

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