Note F - Income Taxes - Reconciliation of Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Income taxes computed at statutory federal income tax rate	$ 1,670	$ 2,969
State income taxes, net of federal income tax expense	(6)	131
Permanent Differences	(182)	(90)
Foreign tax rate differential	(70)	(473)
Tax Act		3,025
Total provision for income taxes	$ 1,412	$ 5,562
Effective Income Tax Rate Reconciliation, Percent, Total	17.80%	52.40%