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Convertible Debt - Additional Information (Detail) (USD $)
12 Months Ended 63 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2007
Dec. 31, 2012
Convertible Debt [Line Items]        
Proceeds from convertible notes $ 0 $ 0 $ 435,000 $ 435,000
Debt instrument, convertible, conversion price     $ 0.25  
Repayments of notes payable     15,000  
Debt conversion, converted instrument, amount     $ 420,000  
Debt conversion, converted instrument, shares issued     1,680,000