Note 10 - Income Taxes (Details) (USD $)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Note 10 - Income Taxes (Details) [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	34.00%
Deferred Tax Assets, Net	$ 20,491,000
Operating Loss Carryforwards	47,830,000
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	970,000
Deferred Tax Assets, Tax Credit Carryforwards, Research	2,182,000	2,257,000
Effective Income Tax Rate Reconciliation, Percent	0.00%
Federal Income Tax Expense (Benefit), Continuing Operations			(152,333)
Proceeds from Income Tax Refunds		40,324	112,009
Internal Revenue Service (IRS) [Member]
Note 10 - Income Taxes (Details) [Line Items]
Deferred Tax Assets, Tax Credit Carryforwards, Research	1,673,000
State and Local Jurisdiction [Member]
Note 10 - Income Taxes (Details) [Line Items]
Deferred Tax Assets, Tax Credit Carryforwards, Research	$ 771,000
Tax Years 2008 and 2009 [Member]
Note 10 - Income Taxes (Details) [Line Items]
Tax Credit Carryforward, Limitations on Use as a Percentage of Net Tax	50.00%