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Note 4 - Capital Stock (Details Textual) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Common Stock, Dividends, Per Share, Declared |  | $ 0.43 |  |  |
Treasury Stock, Shares, Acquired |  |  | 3,040,000 |  |
Treasury Stock, Value, Acquired, Cost Method |  |  | $ 513,924 | $ 159,576 | $ 300,030
Stock Repurchase Program, Remaining Authorized Repurchase Amount |  | $ 882,100 | $ 882,100 |  |
Exercise or Vesting [Member] |  |  |  |  |
Common Stock, Capital Shares Reserved for Future Issuance (in shares) |  | 1,100,000 | 1,100,000 |  |
Future Issuance [Member] |  |  |  |  |
Common Stock, Capital Shares Reserved for Future Issuance (in shares) |  | 3,500,000 | 3,500,000 |  |
Subsequent Event [Member] |  |  |  |  |
Common Stock, Dividends, Per Share, Declared | $ 0.44 |  |  |  |

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