Note A - Overview and Significant Accounting Policies - Property, Plant and Equipment (Details)	12 Months Ended
	Dec. 31, 2022
Minimum [Member] | Building and Building Improvements [Member]
Estimated useful lives (Year)	3 years
Minimum [Member] | Software and Software Development Costs [Member]
Estimated useful lives (Year)	2 years
Minimum [Member] | Furniture and Fixtures [Member]
Estimated useful lives (Year)	3 years
Maximum [Member] | Building and Building Improvements [Member]
Estimated useful lives (Year)	40 years
Maximum [Member] | Software and Software Development Costs [Member]
Estimated useful lives (Year)	10 years
Maximum [Member] | Furniture and Fixtures [Member]
Estimated useful lives (Year)	20 years