XML 41 R36.htm IDEA: XBRL DOCUMENT v2.4.0.8
Summary of Status of Options Granted under Stock Option Plans and Changes in Options Outstanding (Detail) (Stock Option, USD $)
 9 Months Ended
Jul. 31, 2014
Stock Option
  
Shares  
Options outstanding at November 1, 2013 988,215
Options granted 228,903
Options exercised (185,183)
Options canceled or expired (67,503)
Options outstanding at July 31, 2014 964,432
Options exercisable at July 31, 2014 648,682
Options vested and expected to vest at July 31, 2014 957,535
Weighted Average Exercise Price  
Options outstanding at November 1, 2013 $ 2.24
Options granted $ 6.39
Options exercised $ 2.83
Options canceled or expired $ 2.10
Options outstanding at July 31, 2014 $ 3.12
Options exercisable at July 31, 2014 $ 1.91
Options vested and expected to vest at July 31, 2014 $ 3.10