Note H - Employee Benefit Plans - Components Included in Defined Benefit Pension Plan's Net Periodic Benefit Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Interest cost	$ 39	$ 46
Expected return on plan assets	(59)	(69)
Recognized actuarial loss	110	50
Settlement loss	73
Net periodic benefit expense	$ 163	$ 27