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Basis of Presentation and Significant Accounting Policies - Prepaid (Details) - USD ($)
$ in Thousands
Oct. 31, 2021
Oct. 31, 2020
Basis of Presentation and Significant Accounting Policies    
Non-trade receivables $ 5,300 $ 5,700
Mexican IVA 1,700 1,500
Prepaid expenses $ 3,700 $ 4,200