Composition of Certain Financial Statement Items - Summary of Inventories (Detail) - USD ($) $ in Thousands	Apr. 30, 2021	Jan. 31, 2021
Inventory Disclosure [Abstract]
Raw materials	$ 9,135	$ 13,029
Work-in-progress	1	68
Finished goods	19,732	20,495
Total Inventories	$ 28,868	$ 33,592

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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-Topic 210
-SubTopic 10
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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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