v2.4.0.6
Net loss per share (Details 1)
In Thousands, unless otherwise specified
Oct. 31, 2012
Oct. 31, 2011
Summary of diluted net loss per common share    
Total antidilutive securities 36,815 129,844
Shares subject to outstanding common stock options and warrants [Member]
   
Summary of diluted net loss per common share    
Total antidilutive securities 31,137 29,914
Redeemable convertible preferred stock [Member]
   
Summary of diluted net loss per common share    
Total antidilutive securities    29,365
Convertible preferred stock [Member]
   
Summary of diluted net loss per common share    
Total antidilutive securities    67,586
Shares subject to repurchase [Member]
   
Summary of diluted net loss per common share    
Total antidilutive securities 4,338 2,879
Shares subject to unvested restricted stock awards [Member]
   
Summary of diluted net loss per common share    
Total antidilutive securities 1,340 100