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Warrants - Additional Information (Detail) (USD $)
3 Months Ended
Mar. 31, 2014
Jan. 31, 2013
Class of Warrant or Right [Line Items]    
Original Issue Strike Price, Warrants Issued $ 5.00  
Original Issue Strike Price, Warrants, Beginning $ 9.05  
Warrants, issued   200,000
Estimated fair value of underlying common stock $ 8.88  
Fair Value Assumptions Volatility Rate 39.00%  
Traded price stock with marketability discount 25.00%  
Advisory Services [Member]
   
Class of Warrant or Right [Line Items]    
Warrants, issued 6,614,000  
Minimum
   
Class of Warrant or Right [Line Items]    
Risk-free interest rate 1.62%  
Maximum
   
Class of Warrant or Right [Line Items]    
Risk-free interest rate 1.69%  
2014 Private Placements [Member]
   
Class of Warrant or Right [Line Items]    
Warrants, issued 5,475,000