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Segment Reporting - Additional Information (Detail) $ in Thousands	3 Months Ended
	Apr. 30, 2023 USD ($) Segment	Apr. 30, 2022	Jan. 31, 2023 USD ($)
Concentration Risk [Line Items]
Number of reportable segment | Segment	1
Property and equipment, net	$ 11,279		$ 11,814
Accounts receivable	$ 29,825		51,987
Sales revenue, net [Member] | WT [Member] | Customer concentration risk [Member]
Concentration Risk [Line Items]
Percentage of revenue	49.00%	57.00%
Sales revenue, net [Member] | Chicony [Member] | Customer concentration risk [Member]
Concentration Risk [Line Items]
Percentage of revenue	16.00%	11.00%
Sales revenue, net [Member] | Motorola [Member] | Customer concentration risk [Member]
Concentration Risk [Line Items]
Percentage of revenue	11.00%
Sales revenue, net [Member] | Hakuto [Member] | Customer concentration risk [Member]
Concentration Risk [Line Items]
Percentage of revenue		10.00%
Accounts receivable [Member] | WT [Member] | Credit concentration risk [Member]
Concentration Risk [Line Items]
Accounts receivable	$ 8,700		21,000
Accounts receivable [Member] | Chicony [Member] | Credit concentration risk [Member]
Concentration Risk [Line Items]
Accounts receivable	9,900		9,400
Accounts receivable [Member] | Motorola [Member] | Credit concentration risk [Member]
Concentration Risk [Line Items]
Accounts receivable	5,100
Asia Pacific [Member]
Concentration Risk [Line Items]
Property and equipment, net	6,000		6,300
United States [Member]
Concentration Risk [Line Items]
Property and equipment, net	3,900		4,000
Europe [Member]
Concentration Risk [Line Items]
Property and equipment, net	$ 1,400		$ 1,500

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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