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Note L - Convertible Senior Notes - Schedule of Interest Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Amortization of debt issuance costs | $ 1,430 | $ 2,308 | $ 902
The 5% Convertible Senior Notes Due 2024 [Member] |  |  |
Contractual interest expense | 4,222 | 4,039 |
Amortization of debt issuance costs | 1,466 | 849 |
Total interest cost | $ 5,688 | $ 4,888 |
Effective interest rate | 5.30% | 5.10% |

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