Note N - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ 24,420	$ 0
Gain (Loss) on Extinguishment of Debt, Total	8,200	0
Effective Income Tax Rate Reconciliation, GILTI, Amount	0	1,220
Undistributed Earnings of Foreign Subsidiaries	10,871	1,729
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	778	918
Unrecognized Tax Benefits, Income Tax Penalties Accrued	141	$ 185
Domestic Tax Authority [Member]
Operating Loss Carryforwards, Subject to Expiration	30,980
Tax Credit Carryforward, Amount	9,780
State and Local Jurisdiction [Member]
Operating Loss Carryforwards, Subject to Expiration	31,181
Tax Credit Carryforward, Amount	$ 1,037