Note N - Lease Liabilities - Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Jun. 30, 2021
Operating lease right-of-use assets	$ 13,795	$ 14,736
Operating lease liabilities	11,905	12,887
Property, Plant and Equipment, Net [Member]
Finance lease right-of-use assets	5,113	5,244
Accrued Liabilities [Member]
Operating lease liabilities	1,910	1,870
Finance lease liabilities	579	541
Lease Obligation [Member]
Operating lease liabilities	11,905	12,887
Other Noncurrent Liabilities [Member]
Finance lease liabilities	$ 4,711	$ 4,836