Annual report pursuant to Section 13 and 15(d)

Derivative Instruments - Additional Information (Detail)

v3.3.1.900
Derivative Instruments - Additional Information (Detail) - USD ($)
12 Months Ended
Jun. 30, 2014
Dec. 31, 2014
Dec. 31, 2015
Aug. 31, 2014
Dec. 31, 2013
Jun. 30, 2013
Derivative Instruments And Hedging Activities Disclosures [Line Items]            
Number of shares of common stock called by warrants   33,333 1,969,250 162,539   301,778
Increase in additional paid-in capital $ 48,380          
Loss on change in fair value of warrant liability   $ 28,448        
JB Therapeutics, Inc [Member]            
Derivative Instruments And Hedging Activities Disclosures [Line Items]            
Number of shares of common stock called by warrants         301,778