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Note 6 - Warranty Costs - Warranty and General Liability Reserve (Details) - USD ($)
$ in Thousands
3 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Balance, beginning of period $ 89,371 $ 95,064
Charges incurred during the period (3,665) (6,091)
Changes to pre-existing reserves 355 251
Balance, end of period 89,905 93,410
Selling, General and Administrative Expenses [Member]    
Additions 1,941 2,158
Cost of Sales [Member]    
Additions $ 1,903 $ 2,028