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Note 12 - Share-based Compensation (Details) (USD $)
12 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2013
Employee Stock Option [Member]
Sep. 30, 2013
2005 Equity Incentive Plan [Member]
May 31, 2012
President and Chief Executive Officer [Member]
Sep. 30, 2013
President and Chief Executive Officer [Member]
Note 12 - Share-based Compensation (Details) [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in Shares)         3,250,000    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)         4,999,564    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number (in Shares) 2,394,476 3,463,339 4,181,339   2,394,476    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)         1,512,634    
Share Based Compensation Arrangement by Share Based Payment Award, Number of Shares Remaining in Plan (in Shares)         3,907,110    
Share-based Compensation $ 736,378 $ 684,451          
Contractual term of options 10 years            
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized       400,000      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition       1 year 73 days      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)           750,000  
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share) $ 2.88 $ 1.33       $ 1.33 $ 3.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value 483,392            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value 464,364            
Share Price (in Dollars per share) $ 1.45            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value 391,238            
Proceeds from Stock Options Exercised (in Dollars) 340,450            
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options $ 391,238