v2.4.0.6
Subsequent Events - Additional Information (Detail) (USD $)
12 Months Ended 0 Months Ended 1 Months Ended
Dec. 31, 2012
May 02, 2013
Subsequent event
Apr. 10, 2013
Subsequent event
May 02, 2013
Subsequent event
Convertible notes payable
Subsequent Event [Line Items]        
Milestone payment     $ 500,000  
Warrants issuance to purchase of common stock     125,000  
Warrants issuance to purchase of common stock exercise price     $ 1.5  
Reported stockholders equity less than $2 million      
Debt conversion, converted instrument, Amount       409,600
Debt conversion, converted instrument, Shares issued       1,170,286
Warrants exercised   150,000    
Warrants exercised per share   $ 0.40    
Proceeds from warrant exercises   $ 60,000