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Note H - Employee Benefit Plans - Recognized in Balance Sheet (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Qualified Plan [Member] |  |
Long term pension liabilities | $ 18,674 | $ 27,359
Nonqualified Plan [Member] |  |
Long term pension liabilities | 19,098 | 25,140
Pension Plan [Member] |  |
Current pension liabilities | 1,858 | 1,801
Total pension liabilities | 39,630 | 54,300
Pension Plan [Member] | Qualified Plan [Member] |  |
Long term pension liabilities | 18,674 | 27,359
Pension Plan [Member] | Nonqualified Plan [Member] |  |
Long term pension liabilities | $ 19,098 | $ 25,140

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