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Promissory Note, Related Party - Additional Information (Detail) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Related Party Transaction [Line Items]    
Outstanding promissory notes $ 30,000 $ 30,000
Officer and Director [Member]    
Related Party Transaction [Line Items]    
Outstanding promissory notes 23,000 $ 23,000
Amount of promissory notes interest charges $ 0