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Inventories - Components of Inventories (Detail) - USD ($) $ in Thousands	Oct. 31, 2020	Jan. 31, 2020
Inventory Disclosure [Abstract]
Materials and Supplies	$ 21,058	$ 20,151
Work-In-Process	1,631	1,408
Finished Goods	16,464	17,992
Inventory, Gross	39,153	39,551
Inventory Reserve	(8,285)	(5,626)
Inventories	$ 30,868	$ 33,925

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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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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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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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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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Amount of valuation reserve for inventory.

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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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