Composition of Certain Financial Statement Items - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Apr. 30, 2026	Jan. 31, 2026
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 97,389	$ 97,285
Less: Accumulated depreciation	(74,952)	(72,620)
Total Property and Equipment, Net	22,437	24,665
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	35,578	35,320
Owned and operated systems
Property, Plant and Equipment [Line Items]
Property and equipment, gross	24,186	24,437
Tooling
Property, Plant and Equipment [Line Items]
Property and equipment, gross	17,639	17,277
Computers and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	9,546	9,710
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	8,801	8,823
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,396	1,409
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 243	$ 309

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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