Note D - Leases - Lease Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash paid for amounts included in the measurement of operating lease Liabilities	$ 3,298	$ 3,453
Operating lease liabilities arising from recording Right of Use Assets upon adoption of ASC 842		20,897
Operating lease liabilities arising from obtaining Right of Use Assets for new leases	$ 187	$ 120