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Stockholders' Equity/(Deficit) - Summary of Common Stock Warrants Outstanding (Detail)
Dec. 31, 2013
May 10, 2012
Class of Warrant or Right [Line Items]    
Common Stock Warrants 2,087,500  
Exercise Price 4.32 3.60
Class of Warrant One [Member]
    
Class of Warrant or Right [Line Items]    
Common Stock Warrants 525,000  
Exercise Price 2.44  
Termination Date Apr. 13, 2014  
Class of Warrant Two [Member]
    
Class of Warrant or Right [Line Items]    
Common Stock Warrants 1,562,500  
Exercise Price 3.60  
Termination Date Nov. 09, 2016