Note 11 - Income Taxes - Reconciliation of Expected Tax Expense (Benefit) to Actual Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Expected tax expense	$ 2,018	$ 1,365	$ 523
State taxes, net of federal effect	(5)		9
Foreign taxes, net of federal credits	(1,055)	(1,010)	(210)
Change in valuation allowance	1,744	2,074	(107)
Tax reserve adjustments	(66)	(38)	272
Return to provision and other adjustments	(57)	(72)	(17)
Losses not benefited			123
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	(129)	6,324	315
Canada real estate gain deduction			(337)
Global intangible low taxed income	1,121
Other permanent items	(40)	(145)	(24)
Actual tax expense	$ 3,531	$ 8,498	$ 547