Annual report pursuant to section 13 and 15(d)

Common Stock Reserved for Issuance (Detail)

v2.4.0.8
Common Stock Reserved for Issuance (Detail)
12 Months Ended
Dec. 31, 2013
Components of Common Stock Reserved [Line Items]  
Employee stock options and restricted stock 1,175,020
Base Warrant
 
Components of Common Stock Reserved [Line Items]  
Common Stock Reserved for Issuance 289,187
Series B Preferred Stock
 
Components of Common Stock Reserved [Line Items]  
Common Stock Reserved for Issuance 153
Series C Preferred Stock
 
Components of Common Stock Reserved [Line Items]  
Common Stock Reserved for Issuance 14,515,894
Series C Preferred Stock | Other Accrued Liabilities
 
Components of Common Stock Reserved [Line Items]  
Common Stock Reserved for Issuance 1,013,889
Series E Preferred Stock
 
Components of Common Stock Reserved [Line Items]  
Common Stock Reserved for Issuance 4,273,504
Series F Preferred Stock
 
Components of Common Stock Reserved [Line Items]  
Common Stock Reserved for Issuance 1,089,775