Note 11 - Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
United States	$ 3,080	$ 14,004	$ 7,697
Foreign			(183)
Income before income taxes	3,080	14,004	7,514	$ 2,267	$ 615
U.S. federal	800	5,056	2,364
State and local	59	582	237
Foreign			(12)
Total current	859	5,638	2,589
Deferred	(779)	(1,117)	(226)
Total provision for income taxes	$ 80	$ 4,522	$ 2,363	$ 1,337	$ 738