Annual report pursuant to Section 13 and 15(d)

Stock Option Plans (Details)

v2.4.0.8
Stock Option Plans (Details) (USD $)
 12 Months Ended
Sep. 30, 2013
Plan
Sep. 30, 2012
Sep. 30, 2009
Stock Option Plans [Abstract]      
Number of plans approved by shareholders 4    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock option available for grant under the plan (in shares) 10,000,000 1,201,000 592,000
Summary of Black Scholes option pricing model and weighted average assumptions [Abstract]      
Expected option life 10 years 5 years  
Expected stock price volatility (in hundredths) 94.00% 76.00%  
Expected dividend yield (in hundredths) 0.00% 0.00%  
Risk-free interest rate (in hundredths)   0.91%  
Number of options outstanding [Abstract]      
Beginning of year (in shares) 1,747,000 301,000  
Granted (in shares) 108,000 1,747,000  
Exercised (in shares) 0 0  
Terminated (in shares) (377,000) (301,000)  
End of year (in shares) 1,478,000 1,747,000  
Number of options exercisable at end of year (in shares) 1,418,000 1,658,000  
Number of options available for grant at end of year (in shares) 10,000,000 1,201,000 592,000
Weighted average option prices per share [Abstract]      
Granted during the year (in dollars per share) $ 0.49 $ 0.41  
Exercised during the year (in dollars per share) $ 0 $ 0  
Terminated during the year (in dollars per share) $ 0.40 $ 0  
Outstanding at end of year (in dollars per share) $ 0.40 $ 0.38  
Exercisable at end of year (in dollars per share) $ 0.41 $ 0.40  
Summary of stock options outstanding [Abstract]      
Aggregate intrinsic value of stock options exercised and outstanding (in dollars per share) $ 0.23    
Estimated average fair value of stock options grant (in dollars per share) $ 0.43 $ 0.26  
Stock-based compensation expense $ 68,000 $ 422,000  
Unrecognized compensation expense related to unvested stock options outstanding $ 2,000    
Weighted average vesting period of unvested stock options 1 year 6 months    
Under $1.00 [Member]
      
Summary of stock options outstanding [Abstract]      
Range of Exercise Prices, Minimum (in dollars per share) $ 0.00    
Range of Exercise Prices, Maximum (in dollars per share) $ 1.00    
Number Outstanding (in shares) 1,463,000    
Weighted Average Price (in dollars per share) $ 0.40    
Number Exercisable (in shares) 1,403,000    
Weighted Average Price (in dollars per share) $ 0.41    
Average Remaining Life 7 years    
$1.01 to $2.39 [Member]
      
Summary of stock options outstanding [Abstract]      
Range of Exercise Prices, Minimum (in dollars per share) $ 1.01    
Range of Exercise Prices, Maximum (in dollars per share) $ 2.39    
Number Outstanding (in shares) 15,000    
Weighted Average Price (in dollars per share) $ 2.39    
Number Exercisable (in shares) 15,000    
Weighted Average Price (in dollars per share) $ 2.39    
Average Remaining Life 4 years    
Minimum [Member]
      
Summary of Black Scholes option pricing model and weighted average assumptions [Abstract]      
Risk-free interest rate (in hundredths) 2.64%    
Maximum [Member]
      
Summary of Black Scholes option pricing model and weighted average assumptions [Abstract]      
Risk-free interest rate (in hundredths) 1.86%    
Stock options [Member]
      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expiration period of stock option from the date of grant 10 years    
1997 Stock Option Plan [Member]
      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock option available for grant under the plan (in shares)     592,000
Stock option available for issuance under the plan (in shares) 0    
Number of options outstanding [Abstract]      
Number of options available for grant at end of year (in shares)     592,000
2013 Company Incentive Plan [Member]
      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock option available for issuance under the plan (in shares) 10,000,000