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Cost Reduction Actions (Details of Future Cash Payments) (Details) (USD $)
Oct. 31, 2011
Oct. 31, 2008
Cost Reduction Actions [Abstract]    
Facility-related exit cost liability, Noncurrent $ 3,019,000  
Less net cash to be received in next twelve months (402,000)  
Interest expense to be accreted in future periods 1,566,000  
Total net estimated facility-related exit costs $ 4,183,000 $ 4,141,000