Property and Equipment, Net - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands	Jul. 31, 2025	Jan. 31, 2025
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 42,448	$ 39,493
Less: accumulated depreciation and amortization	(32,356)	(30,409)
Total property and equipment, net	10,092	9,084
Computer hardware and software [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	27,488	25,730
Tools and equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	9,226	8,625
Furniture and fixtures [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,409	1,376
Leasehold improvements [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	3,464	3,455
Construction in progress [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 861	$ 307

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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