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Segment Reporting - Additional Information (Detail) $ in Thousands	3 Months Ended
	Apr. 30, 2024 USD ($) Segment	Apr. 30, 2023	Jan. 31, 2024 USD ($)
Concentration Risk [Line Items]
Number of reportable segment \| Segment	1
Property and equipment, net	$ 9,763		$ 10,439
Accounts receivable	$ 28,299		24,950
Sales revenue, net [Member] \| WT [Member] \| Customer concentration risk [Member]
Concentration Risk [Line Items]
Percentage of revenue	62.00%	49.00%
Sales revenue, net [Member] \| Chicony [Member] \| Customer concentration risk [Member]
Concentration Risk [Line Items]
Percentage of revenue	13.00%	16.00%
Sales revenue, net [Member] \| Motorola [Member] \| Customer concentration risk [Member]
Concentration Risk [Line Items]
Percentage of revenue		11.00%
Accounts receivable [Member] \| WT [Member] \| Credit concentration risk [Member]
Concentration Risk [Line Items]
Accounts receivable	$ 13,800		10,300
Accounts receivable [Member] \| Chicony [Member] \| Credit concentration risk [Member]
Concentration Risk [Line Items]
Accounts receivable	7,400		7,000
Asia Pacific [Member]
Concentration Risk [Line Items]
Property and equipment, net	4,900		5,300
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	$ 1,200		$ 1,200