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Debt - Additional Information (Detail) (USD $)
 1 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2009
Sep. 30, 2013
May 31, 2005
Sep. 30, 2013
Credit Facility [Member]
Jan. 31, 2013
Credit Facility [Member]
Sep. 30, 2011
Credit Facility [Member]
Sep. 30, 2013
Warrants [Member]
Dec. 31, 2009
Convertible Debt [Member]
Sep. 30, 2013
Convertible Debt [Member]
Dec. 31, 2010
Convertible Debt [Member]
Debenture [Member]
Sep. 30, 2013
Convertible Debt [Member]
Debenture [Member]
Sep. 30, 2013
Convertible Debt [Member]
Warrants [Member]
Debt [Line Items]                        
Securities purchase agreement face amount               $ 1,012,500        
Senior secured convertible debentures, percentage rate               5.00%        
Senior secured convertible debentures, principal amount               1,000,000   1,063,926    
Exercise price of common stock warrants 0.91 0.91 0.70       0.91 0.91        
Percentage of warrant received by each investor               25.00%        
Aggregate subscription amount               0.75        
Proceeds, net of transaction costs and expenses               922,223        
Common stock for which warrants has been issued 337,501                      
Accrued interest                   51,426    
Accrued interest, shares                   1,418,573    
Conversion price                   $ 0.75    
Interest expense recognition                   319,836    
Interest rate payable in cash or kind                 5.00%      
Debentures principal amount due date                 Dec. 10, 2011      
Average trading volume of common stock                 100,000      
Condition for right to force conversion of debenture                 (i) the closing price of its common stock exceeded 200% of the then-effective conversion price for 20 trading days out of a consecutive 30 trading-day period or (ii) the average daily trading volume for its common stock exceeded 100,000 shares per trading day for 20 trading days out of a consecutive 30 trading-day period and the closing price of its common stock exceeded 100% of the then-effective conversion price for 20 trading days out of a consecutive 30 trading-day period.      
Percentage of common stock on effective conversion price   100.00%             200.00%      
Effective trading days                 20 days      
Total training days                 30 days      
Gross proceeds, allocated                     786,432 226,068
Additional discount on debentures                 401,568      
Maximum borrowing capacity         400,000              
Loan agreement expiration date       Jan. 31, 2013                
Outstanding credit facility           $ 0