Property and Equipment, net - Schedule of Property and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Jan. 31, 2013	Jan. 31, 2012
Computer equipment and software	$ 2,810	$ 2,481
Machinery and equipment	2,050	1,951
Furniture and fixtures	397	346
Leasehold improvements	642	543
Construction in progress	827	0
Property and equipment, gross	6,726	5,321
Less: accumulated depreciation and amortization	(4,190)	(3,635)
Total property and equipment, net	$ 2,536	$ 1,686

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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