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GUARANTEES AND PRODUCT WARRANTIES - Reconciliation of the changes in warranty reserve (Details) - USD ($)
$ in Thousands
3 Months Ended
Jan. 31, 2021
Jan. 31, 2020
GUARANTEES AND PRODUCT WARRANTIES    
Balance, beginning of period $ 1,200 $ 1,760
Provision for warranties during the period 713 492
Charges to the reserve (722) (784)
Impact of foreign currency translation 55 3
Balance, end of period $ 1,246 $ 1,471