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Segment Reporting - Additional Information (Detail) $ in Thousands	12 Months Ended
	Jan. 31, 2025 USD ($) Segment	Jan. 31, 2024 USD ($)	Jan. 31, 2023
Concentration Risk [Line Items]
Number of reportable segment \| Segment	1
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]	srt:ChiefExecutiveOfficerMember
Segment reporting, CODM, profit (loss) measure, how used, description	The CODM uses net loss presented on a consolidated basis to evaluate the financial performance and allocate resources. The CODM also monitors budget versus actual results of the operating segment.
Property and equipment, net	$ 9,084	$ 10,439
Accounts receivable	$ 29,767	$ 24,950
Sales revenue, net [Member] \| WT [Member] \| Customer concentration risk [Member]
Concentration Risk [Line Items]
Percentage of revenue	63.00%	53.00%	57.00%
Sales revenue, net [Member] \| Chicony [Member] \| Customer concentration risk [Member]
Concentration Risk [Line Items]
Percentage of revenue		14.00%	12.00%
Accounts receivable [Member] \| WT [Member] \| Credit concentration risk [Member]
Concentration Risk [Line Items]
Accounts receivable	$ 12,300	$ 10,300
Accounts receivable [Member] \| Chicony [Member] \| Credit concentration risk [Member]
Concentration Risk [Line Items]
Accounts receivable		7,000
Taiwan [Member]
Concentration Risk [Line Items]
Property and equipment, net	4,000	4,900
United States [Member]
Concentration Risk [Line Items]
Property and equipment, net	3,700	3,900
Europe [Member]
Concentration Risk [Line Items]
Property and equipment, net	1,100	1,200
Asia Pacific Region other than Taiwan [Member]
Concentration Risk [Line Items]
Property and equipment, net	$ 300	$ 400