Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments - Additional Information (Detail)

v3.3.0.814
Derivative Instruments - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Jun. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2013
Derivative Instruments And Hedging Activities Disclosures [Line Items]            
Number of shares of common stock called by warrants   1,969,250   1,969,250    
Addition to Additional-Paid in Capital $ 48,380          
Loss on change in fair value of warrant liability   $ 0 $ 0 $ 0 $ 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