Components of Property and Equipment (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2012
Property, Plant and Equipment [Line Items]
Machinery and equipment	$ 14,392	$ 13,860
Furniture and fixtures	969	498
Leasehold improvements	1,843	1,147
Construction in progress	1,541	768
Total cost	18,745	16,273
Less accumulated depreciation	(12,196)	(9,895)
Property and equipment, net	$ 6,549	$ 6,378

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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