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Income Taxes - Summary of Net Operating Loss Carryforwards (Details)
$ in Thousands
Oct. 31, 2020
USD ($)
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards $ 4,983
Federal  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 12,161
State  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 15,190
Foreign | Chile  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards 3,662
Foreign | Argentina  
Operating Loss Carryforwards [Line Items]  
Operating loss carryforwards $ 1,684