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Note L - Convertible Senior Notes (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Convertible Debt [Table Text Block] |
|  | December 31, 2023 |
Principal |  | $ | 80,214 |
Unamortized debt issuance costs |  |  | (3,981 | )
Net carrying amount |  | $ | 76,233 |
Interest Income and Interest Expense Disclosure [Table Text Block] |
|  | Year ended December 31, |
|  | 2023 |  |  | 2022 |
Contractual interest expense |  | $ | 4,039 |  |  | $ | 4,025 |
Amortization of debt issuance costs |  |  | 849 |  |  |  | 826 |
Total interest cost |  | $ | 4,888 |  |  | $ | 4,851 |
Effective interest rate |  |  | 5.1 | % |  |  | 5.1 | %

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