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Segment Reporting - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2021 USD ($)	Oct. 31, 2020	Oct. 31, 2021 USD ($) Segment	Oct. 31, 2020	Jan. 31, 2021 USD ($)
Concentration Risk [Line Items]
Number of reportable segment \| Segment			1
Property and equipment, net	$ 8,498		$ 8,498		$ 5,530
Accounts receivable	$ 44,776		$ 44,776		$ 24,974
Sales revenue, net [Member] \| Wintech [Member] \| Customer concentration risk [Member]
Concentration Risk [Line Items]
Percentage of revenue	63.10%	62.30%	62.70%	60.40%
Sales revenue, net [Member] \| Chicony [Member] \| Customer concentration risk [Member]
Concentration Risk [Line Items]
Percentage of revenue	13.40%	17.60%	14.90%	17.40%
Accounts receivable [Member] \| Wintech [Member] \| Credit concentration risk [Member]
Concentration Risk [Line Items]
Accounts receivable	$ 23,500		$ 23,500
Accounts receivable [Member] \| Chicony [Member] \| Credit concentration risk [Member]
Concentration Risk [Line Items]
Accounts receivable	12,400		12,400
United States [Member]
Concentration Risk [Line Items]
Property and equipment, net	3,100		3,100
Asia Pacific [Member]
Concentration Risk [Line Items]
Property and equipment, net	4,000		4,000
Europe [Member]
Concentration Risk [Line Items]
Property and equipment, net	$ 1,500		$ 1,500