Annual report pursuant to Section 13 and 15(d)

Derivative Liability and Fair Value Measurements (Additional Information) (Detail)

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Derivative Liability and Fair Value Measurements (Additional Information) (Detail) - USD ($)
12 Months Ended
Jun. 03, 2014
Dec. 31, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right   45,100 4,730,992
Convertible Debt     $ 3,000,000
Fair Value Of Debt Embedded Conversion Price Adjustment Option $ 1,938,988    
Percentage of Outstanding Warrants Issued By Parent   86.00%