Annual report pursuant to Section 13 and 15(d)

Stock Option Plans (Details)

v2.4.0.6
Stock Option Plans (Details) (USD $)
 12 Months Ended
Sep. 30, 2012
Plan
Sep. 30, 2011
Sep. 30, 2012
Under $1.00 [Member]
Sep. 30, 2012
$1.25 to $2.39 [Member]
Sep. 30, 2012
Stock options [Member]
Sep. 30, 2012
1997 Stock Option Plan [Member]
Sep. 30, 2009
1997 Stock Option Plan [Member]
Sep. 30, 2012
2011 Company Incentive Plan [Member]
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) 1,201,000 731,000         592,000  
Stock option available for issuance under the plan (in shares)           700,840   500,000
Expiration period of stock option from the date of grant         10 years      
Number of options outstanding [Abstract]                
Beginning of year (in shares) 301,000 388,000            
Granted (in shares) 1,747,000 0            
Exercised (in shares) 0 (12,000)            
Terminated (in shares) (301,000) (75,000)            
End of year (in shares) 1,747,000 301,000            
Number of options exercisable at end of year (in shares) 1,658,000 255,000            
Number of options available for grant at end of year (in shares) 1,201,000 731,000         592,000  
Weighted average option prices per share [Abstract]                
Granted during the year (in dollars per share) $ 0.41 $ 0            
Exercised during the year (in dollars per share) $ 0 $ 0.40            
Terminated during the year (in dollars per share) $ 0 $ 1.26            
Outstanding at end of year (in dollars per share) $ 0.38 $ 0.95            
Exercisable at end of year (in dollars per share) $ 0.40 $ 1.00            
Summary of stock options outstanding [Abstract]                
Range of Exercise Prices ,Minimum (in dollars per share)       $ 1.25        
Range of Exercise Prices ,Maximum (in dollars per share)     $ 1.00 $ 2.39        
Number Outstanding (in shares)     1,747,000           
Weighted Average Price (in dollars per share)     $ 0.38           
Number Exercisable (in shares)     1,658,000           
Weighted Average Price (in dollars per share)     $ 0.40           
Average Remaining Life     4 years           
Aggregate intrinsic value of outstanding stock options $ 0.19              
Aggregate intrinsic value of exercisable stock options 0.19              
Intrinsic value of stock options exercised (in dollars per share) $ 0              
Estimated average fair value of stock options grant (in dollars per share) $ 0.26              
Summary of black Scholes option pricing model and weighted average assumptions [Abstract]                
Expected option life 5 years               
Expected stock price volatility (in hundredths) 76.00%               
Expected dividend yield (in hundredths) 0.00%               
Risk-free interest rate (in hundredths) 0.91%               
Stock-based compensation expense 422,000 8,000            
Unrecognized compensation expense related to unvested stock options outstanding $ 46,000              
Weighted average vesting period of unvested stock options 2 years 6 months