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Note 8 - Stock Compensation Expense (Details) (USD $)
0 Months Ended 12 Months Ended
Oct. 02, 2009
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2011
Note 8 - Stock Compensation Expense (Details) [Line Items]        
Share-based Compensation   $ 368,000 $ 977,000 $ 757,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)   82,500 1,331,250  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value   400,000 4,400,000 300,000
Proceeds from Stock Options Exercised   200,000 100,000 100,000
Adjustments to Additional Paid in Capital, Other 15,600,000 1,000 13,000 215,000
Less Than [Member]
       
Note 8 - Stock Compensation Expense (Details) [Line Items]        
Adjustments to Additional Paid in Capital, Other   100,000    
2012 Option Grant [Member]
       
Note 8 - Stock Compensation Expense (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number (in Shares)   685,000    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures (in Shares)   45,000 105,000  
2012 Option Grant [Member] | Minimum [Member]
       
Note 8 - Stock Compensation Expense (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   1 year    
2012 Option Grant [Member] | Maximum [Member]
       
Note 8 - Stock Compensation Expense (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   2 years    
Employee Stock Option [Member]
       
Note 8 - Stock Compensation Expense (Details) [Line Items]        
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized   2,300,000    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition   1 year    
Restricted Stock Units (RSUs) [Member]
       
Note 8 - Stock Compensation Expense (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in Shares)   0 15,000  
Selling, General and Administrative Expenses [Member]
       
Note 8 - Stock Compensation Expense (Details) [Line Items]        
Share-based Compensation   $ 400,000 $ 1,000,000 $ 800,000
Director [Member]
       
Note 8 - Stock Compensation Expense (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)   7,500    
Newly Elected Directors [Member]
       
Note 8 - Stock Compensation Expense (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)   7,500    
Directors [Member]
       
Note 8 - Stock Compensation Expense (Details) [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)   37,500