Note H - Employee Benefit Plans - Summary of Changes in Plan Assets and Benefit Obligation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Net loss	$ (8)	$ (17)
Settlement loss	(28)	(50)
Amortization of net loss	(50)	(63)
Plan expenses	(0)	(0)
Total recognized in other comprehensive loss	(86)	(130)
Total recognized in net periodic benefit cost and other comprehensive loss	$ (5)	$ (47)