Balance Sheet - Schedule of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2014	Jan. 31, 2014
Inventories:
Raw materials	$ 5,827	$ 4,599
Finished goods	5,649	4,159
Work in progress	529	612
Cost of inventories	12,005	9,370
Less allowance for obsolescence	(847)	(1,032)
Total inventories, net	$ 11,158	$ 8,338

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 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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