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Inventories
6 Months Ended
Apr. 30, 2011
Inventories [Abstract]  
Inventories
7.   Inventories. At April 30, 2011 and October 31, 2010, inventories consisted of the following:
                 
    April 30, 2011   October 31, 2010
 
 
               
Finished goods
  $ 77,850     $ 72,633  
Work-in-process
    18,706       15,614  
Raw materials and finished parts
    61,442       54,131  
 
 
    157,998       142,378  
Obsolescence and valuation reserves
    (17,498 )     (16,802 )
LIFO reserve
    (6,961 )     (7,855 )
 
 
  $ 133,539     $ 117,721