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 $)
3 Months Ended
Jun. 30, 2014
Summary Of Significant Accounting Policies [Line Items]  
Common stock exchange price $ 3.30
Common stock shares issued upon conversion of Convertible preferred stock 0
Preferred Stock Series A1
 
Summary Of Significant Accounting Policies [Line Items]  
Convertible preferred stock, liquidation preference $ 0