Note 10 - Income Taxes - Reconciliation Schedule of Federal Income Tax Benefits (Details) - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Expected income tax benefit at statutory rate	$ (1,537,000)	$ (1,918,000)
State taxes, net of federal benefit	(138,000)	(173,000)
Permanent differences and other	(13,000)	(19,000)
Change in valuation allowance	1,688,000	2,110,000
Income tax benefit