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Income Taxes - Additional Information (Details) - USD ($)
 12 Months Ended
Oct. 31, 2025
Oct. 31, 2024
Income Tax Contingency [Line Items]    
No uncertain tax positions $ 0 $ 0
Accrued interest related to unrecognized tax benefits 0 0
Accrued penalties related to unrecognized tax benefits 0 $ 0
Capital losses 2,200,000  
SR&ED expenditures 39,200,000  
Federal    
Income Tax Contingency [Line Items]    
Net operating loss carryforwards 11,700,000  
U.S    
Income Tax Contingency [Line Items]    
Net operating loss carryforwards $ 10,000,000  
U.S | Earliest Tax Year    
Income Tax Contingency [Line Items]    
Investment tax credits expiration year 2041  
U.S | Latest Tax Year    
Income Tax Contingency [Line Items]    
Investment tax credits expiration year 2045  
Canadian    
Income Tax Contingency [Line Items]    
Net operating loss carryforwards $ 214,300,000  
Investment tax credits $ 3,700,000  
Canadian | Earliest Tax Year    
Income Tax Contingency [Line Items]    
Net operating loss carryforwards expiration year 2028  
Investment tax credits expiration year 2026  
Canadian | Latest Tax Year    
Income Tax Contingency [Line Items]    
Net operating loss carryforwards expiration year 2045  
Investment tax credits expiration year 2045  
Canadian | Federal    
Income Tax Contingency [Line Items]    
Net operating loss carryforwards $ 220,500,000  
SR&ED expenditures $ 36,700,000  
Canadian | Federal | Earliest Tax Year    
Income Tax Contingency [Line Items]    
Net operating loss carryforwards expiration year 2026  
Canadian | Federal | Latest Tax Year    
Income Tax Contingency [Line Items]    
Net operating loss carryforwards expiration year 2045