Note 7 - Income Taxes (Details) (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011	Jul. 31, 2007
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	$ 23,400,000	$ 13,300,000	$ 10,700,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	16,700,000	10,000,000	8,400,000
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount	2,000,000	1,800,000	1,700,000
Liability for Uncertain Tax Positions, Noncurrent				$ 36,000