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Acquired Intangible Assets and Goodwill - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021	Jul. 22, 2022	Jan. 31, 2022
Goodwill [Line Items]
Goodwill	$ 8,695		$ 8,695			$ 4,264
Amortization expense	400	$ 300	698	$ 652
Junction Networks, Inc.
Goodwill [Line Items]
Intangibles	8,200		8,200		$ 8,180
Goodwill	$ 4,400		$ 4,400