Note H - Lease Obligations - Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021
Operating lease right-of-use assets	$ 12,685	$ 14,736
Finance lease right-of-use assets	4,805	5,244
Operating lease liabilities	10,575	12,887
Property, Plant and Equipment, Net [Member]
Finance lease right-of-use assets	4,805	5,244
Accrued Liabilities [Member]
Operating lease liabilities	2,127	1,870
Finance lease liabilities	576	541
Lease Obligation [Member]
Operating lease liabilities	10,575	12,887
Other Noncurrent Liabilities [Member]
Finance lease liabilities	$ 4,440	$ 4,836