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Note 6 - Warranty Costs (Tables)
 9 Months Ended
Jul. 31, 2019
Notes Tables  
Schedule of Product Warranty Liability [Table Text Block]
   
Three Months Ended
July 31,
    
Nine Months Ended
July 31,
  
(In thousands)
  
2019
    
2018
    
2019
    
2018
  
                         
Balance, beginning of period
  
$92,849
    
$115,775
    
$95,064
    
$127,702
  
                         
Additions - Selling, general and administrative
  
2,332
    
2,346
    
6,449
    
6,684
  
Additions - Cost of sales
  
1,481
    
3,386
    
4,817
    
13,285
  
Charges incurred during the period
  
(3,657
)
  
(3,765
)
  
(13,768
)
  
(29,929
)
Changes to pre-existing reserves
  
900
    
(2,314
)
  
1,343
    
(2,314
)
Balance, end of period
  
$93,905
    
$115,428
    
$93,905
    
$115,428