Note G - Dividend Payment (Details Textual) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended		6 Months Ended
	Jul. 13, 2026	Apr. 13, 2026	Jan. 12, 2026	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Common Stock, Dividends, Per Share, Cash Paid		$ 0.1525	$ 0.15
Dividends, Common Stock, Cash		$ 2,100	$ 2,100	$ 2,106	$ 2,075	$ 4,160	$ 4,136
Subsequent Event [Member]
Common Stock, Dividends, Per Share, Cash Paid	$ 0.1525
Dividends, Common Stock, Cash	$ 2,100