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GUARANTEES AND PRODUCT WARRANTIES - Reconciliation of the changes in warranty reserve (Details) - USD ($)
$ in Thousands
6 Months Ended
Apr. 30, 2021
Apr. 30, 2020
GUARANTEES AND PRODUCT WARRANTIES    
Balance, beginning of period $ 1,200 $ 1,760
Provision for warranties during the period 1,204 899
Charges to the reserve (1,049) (1,407)
Impact of foreign currency translation 62 (8)
Balance, end of period $ 1,417 $ 1,244