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Note 6 - Share-Based Compensation (Detail) - Summary of Restricted Stock Activity (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Jan. 31, 2013
Oct. 31, 2012
Shares 780 652
Weighted Average Grant-Date Fair Value (in Dollars per share) $ 12.45 $ 11.79
Remaining Vesting Period 1 year 328 days  
Aggregate Intrinsic Value (in Dollars) $ 11,545  
Expected to vest 742  
Expected to vest (in Dollars per share) $ 12.44  
Expected to vest 1 year 292 days  
Expected to vest (in Dollars) $ 10,977  
Granted 304  
Granted (in Dollars per share) $ 13.13  
Vested (176)  
Vested (in Dollars per share) $ 11.20