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Notes Payable Related Party - Additional Information (Detail) (USD $)
6 Months Ended
Jun. 30, 2013
Related party A
 
Notes Payable [Line Items]  
Interest rate on short term loan 2.50%
Maturity date May 31, 2014
Related party B
 
Notes Payable [Line Items]  
Receivables with imputed interest, amortization amount $ 16,629