INVENTORIES (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019
Inventory Disclosure [Abstract]
Raw materials and supplies	$ 23,457	$ 20,267
Work in process	6,164	6,483
Finished goods	31,944	31,876
Total inventories	61,565	58,626
Less: LIFO reserve	(5,027)	(5,027)
Less: Obsolescence reserve	(2,314)	(2,170)
Inventories, net	$ 54,224	$ 51,429

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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 by which inventory stated at last-in first-out (LIFO) is less than (in excess of) inventory stated at other inventory cost methods.

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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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