Note J - Lease Obligations - Components of Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Amortization of right-of-use assets	$ 27	$ 3
Interest on lease liabilities	8	1
Operating lease cost	3,348	2,462
Short-term lease cost	40	39
Variable lease cost	37	8
Total lease cost	3,460	2,513
Less: Sublease income	(222)	(204)
Net lease cost	$ 3,238	$ 2,309