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Note 10 - Income Taxes (Details) - Reconciliation of Income Taxes (USD $)
 12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Reconciliation of Income Taxes [Abstract]    
Income taxes computed at the federal statutory rate $ 1,137,000 $ 430,000
Change in valuation allowance (2,717,000) (917,000)
Expired net operating loss carryforwards 1,285,000  
Nondeductible compensation, interest expense and other 8,000 8,000
State income taxes, net of federal tax benefit 102,000 70,000
Change in R&D credit carryover 79,000 (56,000)
Stock options and other prior year true-ups 105,000 462,000
State business credit utilization   (4,000)
Prior year tax adjustments   9,000
Other 17,000  
$ 16,252 $ 1,902