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Note 6 - Warranty Costs (Tables)
 9 Months Ended
Jul. 31, 2017
Notes Tables  
Schedule of Product Warranty Liability [Table Text Block]
   
Three Months Ended
July 31,
    
Nine Months Ended
July 31,
  
(In thousands)
  
2017
    
2016
    
2017
    
2016
  
                                 
Balance, beginning of period
   $
117,207
     $
136,706
     $
121,144
     $
135,053
  
                                 
Additions - Selling, general and administrative
    
2,639
      
4,247
      
8,403
      
13,162
  
Additions - Cost of sales
    
4,434
      
4,426
      
11,436
      
12,347
  
Charges incurred during the period
    
(5,489
 )    
(5,942
)
    
(22,192
 )    
(21,125
)
Changes to pre-existing reserves
    
-
      
-
      
-
      
-
  
Balance, end of period
   $
118,791
     $
139,437
     $
118,791
     $
139,437