Quarterly report pursuant to Section 13 or 15(d)

Derivative Liability and Fair Value Measurements (Schedule of Fair Value Level 3 Warrant Liabilities) (Detail)

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Derivative Liability and Fair Value Measurements (Schedule of Fair Value Level 3 Warrant Liabilities) (Detail)
6 Months Ended
Jun. 30, 2017
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Fair value - December 31, 2016 $ 173,131
Change in fair value for the period of warrant derivative liability (9,144)
Fair value - June 30, 2017 $ 163,987