Annual report pursuant to section 13 and 15(d)

Convertible Promissory Notes and Warrants - Additional Information (Detail)

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Convertible Promissory Notes and Warrants - Additional Information (Detail) (USD $)
1 Months Ended 12 Months Ended 12 Months Ended 1 Months Ended 1 Months Ended 12 Months Ended
Sep. 30, 2012
Dec. 31, 2009
Y
Dec. 31, 2012
Dec. 31, 2011
Feb. 28, 2010
Feb. 25, 2010
Dec. 21, 2009
Dec. 31, 2012
Gain (Loss) on Debt Restructuring
Sep. 30, 2012
Common Stock
Feb. 28, 2012
Amended Debt Instrument
Dec. 21, 2009
Convertible Notes Payable
Feb. 28, 2012
Convertible Notes Payable
Amended Debt Instrument
Dec. 31, 2012
Convertible Promissory Notes
Dec. 31, 2009
Series A
Convertible Promissory Notes And Warrants [Line Items]                            
Issue of convertible promissory notes             $ 2,400,000              
Warrants issued           196,766 935,040              
Outstanding Series A Preferred Stock Prior to Conversion                           480
Exchange Warrants exercise price   5.08     6.43                  
Convertible Promissory Notes, maturity date   3                        
Convertible Promissory Notes, interest rate   1.00%         1.00%         10.00%    
Convertible Promissory note, number of common shares             450,281     450,281        
Convertible Promissory note, conversion price   $ 5.33               $ 5.33        
Convertible Promissory Notes, value allocated       2,314,854     2,150,448              
Convertible Promissory Notes, face value                     2,472,000      
Convertible Promissory Notes, discount             321,552              
Discount amortization charges     81,997 107,266                    
Convertible Promissory Notes, expiring date                       Jun. 30, 2013    
Convertible Promissory note, cash paid upon conversion 880,000                          
Convertible Promissory note, common stock shares issued upon conversion                 1,000,000          
Accrued Interest     140,667                      
Gain on debt restructuring     1,048,308                      
Decrease in basic and diluted loss per share due to gain on debt restructuring               $ 0.05            
Increase in stockholders' Equity due to recording of gain on debt restructuring               1,636,208            
Issuance of convertible stock                         $ 587,900