Note F - Income Taxes - Reconciliation of Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Income taxes computed at statutory federal income tax rate	$ 3,438	$ 4,614
State income taxes, net of federal income tax expense	95	179
Expenses not deductible for tax purposes	29	19
Foreign tax rate differential	(613)	(514)
Adjust state deferred due to change in apportionment	6	(18)
Valuation allowance		(193)
Other, net	(79)	(61)
Total provision for income taxes	$ 2,876	$ 4,026
Effective Income Tax Rate Reconciliation, Percent	28.40%	29.70%