Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Detail)

v2.4.0.8
Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
9 Months Ended
Sep. 30, 2014
Dec. 31, 2013
Summary Of Significant Accounting Policies [Line Items]    
Reverse split of the company's outstanding common stock 1-for-7  
Reverse split, effective date Jul. 25, 2014  
Marketable securities $ 0 $ 0
Deferred offering costs    1,245,660
Liabilities 4,692,559 22,702,008
Level 1 [Member]
   
Summary Of Significant Accounting Policies [Line Items]    
Liabilities 0  
Level 2 [Member]
   
Summary Of Significant Accounting Policies [Line Items]    
Liabilities $ 0