Note G - Dividend Payment (Details Textual) - USD ($) $ / shares in Units, $ in Thousands					3 Months Ended		9 Months Ended
	Oct. 14, 2024	Jul. 15, 2024	Apr. 22, 2024	Jan. 12, 2024	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Common Stock, Dividends, Per Share, Cash Paid		$ 0.15	$ 0.15	$ 0.15
Dividends, Common Stock, Cash		$ 2,100	$ 2,100	$ 2,100	$ 2,082	$ 2,060	$ 6,224	$ 6,180
Subsequent Event [Member]
Common Stock, Dividends, Per Share, Cash Paid	$ 0.15
Dividends, Common Stock, Cash	$ 2,100