Property and Equipment, Net - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Jul. 31, 2024	Oct. 31, 2023
Property, Plant and Equipment [Line Items]
Property and equipment	$ 2,541	$ 2,316
Less: Accumulated depreciation and amortization	1,527	1,727
Property and equipment, net	1,014	589
Lab Equipment
Property, Plant and Equipment [Line Items]
Property and equipment	1,966	1,779
Computer Equipment
Property, Plant and Equipment [Line Items]
Property and equipment	62	269
Computer Software
Property, Plant and Equipment [Line Items]
Property and equipment	146	70
Office Furniture
Property, Plant and Equipment [Line Items]
Property and equipment	141	69
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property and equipment	$ 226	$ 129

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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