Inventories (Detail) - USD ($) $ in Thousands	Feb. 28, 2019	Feb. 28, 2018
Inventory [Line Items]
Raw materials	$ 2,973	$ 4,657
Work-in-process	706	403
Finished goods	631	923
Inventory, Gross	4,310	5,983
Reserves for obsolescence	(859)	(1,399)
Inventory, Net	$ 3,451	$ 4,584

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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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 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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