Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) - USD ($)	1 Months Ended	3 Months Ended	12 Months Ended
	Aug. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Sep. 30, 2014	Jun. 30, 2014
Second Closing [Member]
Potential Proceed from Issuance of Convertible Debt		$ 9,500,000
Debt Issuance Cost		780,000	$ 0
Potential Proceed from Issuance of Convertible Debt	$ 15,000
Cash and Cash Equivalents, at Carrying Value		6,559,000	3,357,000	$ 10,714,000	$ 14,811,000
Working Capital		5,410,000
Retained Earnings (Accumulated Deficit)		$ (141,071,000)	$ (137,674,000)
Gross Proceeds from Convertible Debt	$ 5,500,000
Maximum Period Of Agreement		21 years