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Fair Value of Financial Instruments - Summary of Company's Warrant Liability (Detail) - USD ($)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Fair Value Disclosures [Abstract]    
Beginning balance $ 34,857  
Issuances (Level 3) 144 $ 34,857
Ending balance   $ 34,857
Total (gains) or losses (Level 3) 144  
Vesting of performance condition (Level 3) $ (35,001)