Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Schedule of Estimated Useful Life of Assets (Detail)

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Summary of Significant Accounting Policies - Schedule of Estimated Useful Life of Assets (Detail)
12 Months Ended
Dec. 31, 2013
Laboratory Equipment [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 4 years
Office and Computer Equipment [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 4 years
Leasehold Improvements [Member]
 
Property, Plant and Equipment [Line Items]  
Estimated Useful Life 4 years