XML 89 R38.htm IDEA: XBRL DOCUMENT v3.3.0.814
Merger - Summary of Acquisition Date Fair Value of Consideration Transferred (Parenthetical) (Detail) - shares
 3 Months Ended 9 Months Ended
Jun. 15, 2015
May. 31, 2014
Sep. 30, 2015
Dec. 31, 2014
Business Acquisition [Line Items]        
Common stock outstanding     14,696,100 188,625
Ruthigen [Member]        
Business Acquisition [Line Items]        
Common stock outstanding 1,921,716      
Common stock issued   136,000    
Employee [Member] | Ruthigen [Member]        
Business Acquisition [Line Items]        
Common stock issued 36,000      
Restricted Stock Units [Member]        
Business Acquisition [Line Items]        
Common stock outstanding     180,090 0
Restricted Stock Units [Member] | Ruthigen [Member]        
Business Acquisition [Line Items]        
Common stock issued 67,732      
Private Placement [Member] | Ruthigen [Member]        
Business Acquisition [Line Items]        
Common stock issued 379,387 379,387 379,387