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Note 6 - Warranty Costs (Tables)
 3 Months Ended
Jan. 31, 2019
Notes Tables  
Schedule of Product Warranty Liability [Table Text Block]
   
Three Months Ended
January 31,
  
(In thousands)
  
2019
    
2018
  
             
Balance, beginning of period
  
$95,064
    
$127,702
  
Additions – Selling, general and administrative
  
2,158
    
2,169
  
Additions – Cost of sales
  
2,028
    
5,745
  
Charges incurred during the period
  
(6,091
 )  
(6,302
)
Changes to pre-existing reserves
  
251
    
-
  
Balance, end of period
  
$93,410
    
$129,314