Note S - Employee Benefit Plans (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Global Technology, Inc. [Member]
Pension and Other Postretirement Benefits Cost (Reversal of Cost), Total	$ 1.0	$ 1.0	$ 1.2
Prime World International Holdings, Ltd. (“Prime World”) [Member]
Pension and Other Postretirement Benefits Cost (Reversal of Cost), Total	$ 0.5	$ 0.7	$ 0.8