Note G - Dividend Payment (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Mar. 20, 2023	Mar. 31, 2023	Mar. 19, 2022
Common Stock, Dividends, Per Share, Cash Paid	$ 0.15
Dividends, Common Stock, Cash	$ 2,100	$ 2,059	$ 2,038