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Employee Benefits (Stock Option Activity) (Details) (USD $)
12 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Oct. 31, 2009
Employee Benefits [Abstract]      
Outstanding at October 31, Number of options 131,388 166,577 166,577
Forfeited, Number of options (131,388) (35,189)  
Outstanding at October 31, Number of options   131,388 166,577
Outstanding at October 31, Weighted-average exercise price $ 7.11 $ 7.62 $ 7.62
Forfeited, Weighted-average exercise price $ 7.11 $ 9.54  
Outstanding at October 31, Weighted-average exercise price   $ 7.11 $ 7.62