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COMMITMENTS AND CONTINGENCIES (Details) - USD ($)
$ in Thousands
9 Months Ended
Jul. 31, 2020
Jul. 31, 2019
Schedule of Product Warranties [Line Items]    
Balances as of beginning of fiscal year $ 2,810 $ 3,306
Accruals for warranties 1,472 1,652
Acquired warranty liabilities 50  
Warranty claims settled (1,259) (1,974)
Balances as of end of period $ 3,073 $ 2,984