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Note 9 - Share-based Compensation (Details) - Summary of Share-based Compensation Expense (USD $)
3 Months Ended 9 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Share-based compensation expense $ 147,536 $ 191,755 $ 488,958 $ 582,058
Cost of revenue [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Share-based compensation expense 2,702 1,180 9,169 6,385
Selling, General and Administrative Expenses [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Share-based compensation expense 125,407 178,777 419,968 539,652
Research and Development Expense [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Share-based compensation expense $ 19,427 $ 11,798 $ 59,821 $ 36,021