Note N - Pension and Other Postretirement Benefit Plans - Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Fair value of assets, Balance	$ 6,264	$ 6,688
Relating to assets still held at reporting date	1,362	605
Purchases, sales and settlements, net	(546)	(1,029)
Fair value of assets, Balance	$ 7,080	$ 6,264