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Note H - Employee Benefit Plans - Acceptable Level of Volatility (Details) | Dec. 31, 2022
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Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities [Member] | Qualified Plan I [Member] |
Target rate | 39.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities [Member] | Qualified Plan I [Member] | Minimum [Member] |
Target rate | 24.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities [Member] | Qualified Plan I [Member] | Maximum [Member] |
Target rate | 54.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities [Member] | Qualified Plan II [Member] |
Target rate | 77.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities [Member] | Qualified Plan II [Member] | Minimum [Member] |
Target rate | 62.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities [Member] | Qualified Plan II [Member] | Maximum [Member] |
Target rate | 87.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Large Cap [Member] | Qualified Plan I [Member] |
Target rate | 14.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Large Cap [Member] | Qualified Plan I [Member] | Minimum [Member] |
Target rate | 9.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Large Cap [Member] | Qualified Plan I [Member] | Maximum [Member] |
Target rate | 19.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Large Cap [Member] | Qualified Plan II [Member] |
Target rate | 28.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Large Cap [Member] | Qualified Plan II [Member] | Minimum [Member] |
Target rate | 18.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Large Cap [Member] | Qualified Plan II [Member] | Maximum [Member] |
Target rate | 38.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Mid Cap [Member] | Qualified Plan I [Member] |
Target rate | 9.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Mid Cap [Member] | Qualified Plan I [Member] | Minimum [Member] |
Target rate | 4.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Mid Cap [Member] | Qualified Plan I [Member] | Maximum [Member] |
Target rate | 14.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Mid Cap [Member] | Qualified Plan II [Member] |
Target rate | 18.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Mid Cap [Member] | Qualified Plan II [Member] | Minimum [Member] |
Target rate | 13.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Mid Cap [Member] | Qualified Plan II [Member] | Maximum [Member] |
Target rate | 23.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Small Cap [Member] | Qualified Plan I [Member] |
Target rate | 5.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Small Cap [Member] | Qualified Plan I [Member] | Minimum [Member] |
Target rate | 0.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Small Cap [Member] | Qualified Plan I [Member] | Maximum [Member] |
Target rate | 10.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Small Cap [Member] | Qualified Plan II [Member] |
Target rate | 9.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Small Cap [Member] | Qualified Plan II [Member] | Minimum [Member] |
Target rate | 4.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US, Small Cap [Member] | Qualified Plan II [Member] | Maximum [Member] |
Target rate | 14.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, Non-US [Member] | Qualified Plan I [Member] |
Target rate | 8.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, Non-US [Member] | Qualified Plan I [Member] | Minimum [Member] |
Target rate | 3.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, Non-US [Member] | Qualified Plan I [Member] | Maximum [Member] |
Target rate | 13.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, Non-US [Member] | Qualified Plan II [Member] |
Target rate | 16.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, Non-US [Member] | Qualified Plan II [Member] | Minimum [Member] |
Target rate | 11.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, Non-US [Member] | Qualified Plan II [Member] | Maximum [Member] |
Target rate | 21.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, Emerging Markets [Member] | Qualified Plan I [Member] |
Target rate | 3.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, Emerging Markets [Member] | Qualified Plan I [Member] | Minimum [Member] |
Target rate | 0.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, Emerging Markets [Member] | Qualified Plan I [Member] | Maximum [Member] |
Target rate | 6.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, Emerging Markets [Member] | Qualified Plan II [Member] |
Target rate | 6.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, Emerging Markets [Member] | Qualified Plan II [Member] | Minimum [Member] |
Target rate | 0.00%
Other Pension Plan [Member] | Defined Benefit Plan, Equity Securities, Emerging Markets [Member] | Qualified Plan II [Member] | Maximum [Member] |
Target rate | 9.00%
Pension Plan [Member] | Emerging Markets [Member] | Qualified Plan I [Member] |
Target rate | 59.00%
Pension Plan [Member] | Emerging Markets [Member] | Qualified Plan I [Member] | Minimum [Member] |
Target rate | 44.00%
Pension Plan [Member] | Emerging Markets [Member] | Qualified Plan I [Member] | Maximum [Member] |
Target rate | 74.00%
Pension Plan [Member] | Emerging Markets [Member] | Qualified Plan II [Member] |
Target rate | 21.00%
Pension Plan [Member] | Emerging Markets [Member] | Qualified Plan II [Member] | Minimum [Member] |
Target rate | 11.00%
Pension Plan [Member] | Emerging Markets [Member] | Qualified Plan II [Member] | Maximum [Member] |
Target rate | 31.00%
Pension Plan [Member] | Investment Grade [Member] | Qualified Plan I [Member] |
Target rate | 59.00%
Pension Plan [Member] | Investment Grade [Member] | Qualified Plan I [Member] | Minimum [Member] |
Target rate | 44.00%
Pension Plan [Member] | Investment Grade [Member] | Qualified Plan I [Member] | Maximum [Member] |
Target rate | 74.00%
Pension Plan [Member] | Investment Grade [Member] | Qualified Plan II [Member] |
Target rate | 21.00%
Pension Plan [Member] | Investment Grade [Member] | Qualified Plan II [Member] | Minimum [Member] |
Target rate | 11.00%
Pension Plan [Member] | Investment Grade [Member] | Qualified Plan II [Member] | Maximum [Member] |
Target rate | 31.00%
Pension Plan [Member] | Cash Equivalent [Member] | Qualified Plan I [Member] |
Target rate | 2.00%
Pension Plan [Member] | Cash Equivalent [Member] | Qualified Plan I [Member] | Minimum [Member] |
Target rate | 0.00%
Pension Plan [Member] | Cash Equivalent [Member] | Qualified Plan I [Member] | Maximum [Member] |
Target rate | 40.00%
Pension Plan [Member] | Cash Equivalent [Member] | Qualified Plan II [Member] |
Target rate | 2.00%
Pension Plan [Member] | Cash Equivalent [Member] | Qualified Plan II [Member] | Minimum [Member] |
Target rate | 0.00%
Pension Plan [Member] | Cash Equivalent [Member] | Qualified Plan II [Member] | Maximum [Member] |
Target rate | 40.00%

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