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Note L - Convertible Senior Notes (Details Textual) $ / shares in Units, $ in Thousands |  |  |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 23, 2024 USD ($) | Dec. 18, 2024 USD ($) $ / shares | Mar. 15, 2024 USD ($) | Dec. 05, 2023 USD ($) $ / shares shares | Dec. 05, 2019 USD ($) | Dec. 31, 2024 USD ($) $ / shares | Dec. 31, 2023 USD ($) $ / shares | Dec. 31, 2022 USD ($) | Mar. 05, 2019 USD ($)
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  |  | $ 0.001 |  | $ 0.001 | $ 0.001 |  |
Repayments of Convertible Debt |  |  |  |  |  | $ 4,620 | $ (0) | $ (0) |
Long-Term Debt, Gross |  |  |  |  |  | 26,682 | 23,197 |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  | (111,962) | $ (0) | $ (0) |
Share Price (in dollars per share) | $ / shares |  | $ 33.97 |  |  |  |  |  |  |
Convertible Notes Maturing 2030 [Member] |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 125,000 |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 2.75% |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  | $ 0.001 |  |  |  |  |  |  |
Debt Instrument, Convertible, Number of Equity Instruments |  | 1,487,874 |  |  |  |  |  |  |
Long-Term Debt, Gross |  | $ 3,500 |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt | $ (112,000) |  |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Ratio |  | 23.0884 |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares |  | $ 43.31 |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Price Premium, Percentage |  | 27.50% |  |  |  |  |  |  |
Conversion Of 2024 Notes To Common Stock [Member] |  |  |  |  |  |  |  |  |
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares |  |  |  | 466,368 |  |  |  |  |
Conversion of 2026 Note Principal to 2030 Notes [Member] |  |  |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  | $ 76,700 |  |  |  |  |  |  |
Conversion of 2026 Note Interest to 2030 Notes [Member] |  |  |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  | $ 89,600 |  |  |  |  |  |  |
The 5% Convertible Senior Notes Due 2024 [Member] |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  | $ 80,200 |  |  |  |  | $ 80,500
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  | 5.00%
Proceeds from Convertible Debt |  |  |  |  | $ 81,100 |  |  |  |
Repayments of Convertible Debt |  |  | $ 290 |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed |  |  |  | 100.00% |  |  |  |  |
The 5.250% Convertible Senior Notes Due 2026 [Member] |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  | $ 80,200 |  | $ 3,500 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 5.25% |  |  |  |  |
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger |  |  |  | 130.00% |  |  |  |  |
Debt Instrument, Convertible, Threshold Trading Days |  |  |  | 20 |  |  |  |  |
Debt Instrument, Convertible, Threshold Consecutive Trading Days |  |  |  | 30 |  |  |  |  |

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