Note G - Dividend Payment (Details Textual) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended		6 Months Ended
	Jul. 15, 2024	Apr. 22, 2024	Jan. 12, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Common Stock, Dividends, Per Share, Cash Paid		$ 0.15	$ 0.15
Dividends, Common Stock, Cash		$ 2,100	$ 2,100	$ 2,079	$ 2,061	$ 4,142	$ 4,120
Subsequent Event [Member]
Common Stock, Dividends, Per Share, Cash Paid	$ 0.15
Dividends, Common Stock, Cash	$ 2,100