Note G - Employee Benefit Plans - Summary of Changes in Plan Assets and Benefit Obligation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Net gain (loss)	$ 189	$ (18)
Settlement loss	(50)	(119)
Amortization of net loss	(37)	(49)
Plan expenses	39	38
Total recognized in other comprehensive income (loss)	141	(148)
Total recognized in net periodic benefit cost and other comprehensive income	$ 194	$ (12)