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Other Current Assets - Summary of Other Current Assets (Detail) - USD ($)
Dec. 31, 2016
Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Prepaid expenses $ 582,616 $ 497,118
Deposits 26,846 5,580
Total other current assets $ 609,462 $ 502,698