Note 8 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Domestic Tax Authority [Member]
Deferred Income Tax Expense (Benefit)	$ 0
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	14,041,000	$ (8,719,000)
Operating Loss Carryforwards	101,649
Tax Credit Carryforward, Amount	1,273,000
Foreign Tax Authority [Member]
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	811,000	(315,000)
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	60,885
Tax Credit Carryforward, Amount	1,363
Deferred Income Tax Expense (Benefit)	0	(403,000)
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	$ (14,852,000)	$ (9,034,000)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	34.00%
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 5,091
Tax Benefits Related To Stock Options Included In Valuation Allowance	$ 1,804,000