Note G - Employee Benefit Plans - Components Included in Defined Benefit Pension Plan's Net Periodic Benefit Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Interest cost	$ 57	$ 70
Expected return on plan assets	(89)	(74)
Recognized actuarial loss	49	93
Settlement loss	119	155
Net periodic benefit expense	$ 136	$ 244