Note 5 - Property And Equipment (Detail) - Property and Equipment (USD $) In Thousands, unless otherwise specified	Feb. 28, 2013	May 31, 2012
Propert and equipment, gross	$ 92,659	$ 76,381
Less accumulated depreciation	(28,395)	(11,719)
Property and equipment, net	64,264	64,662
Land [Member]
Propert and equipment, gross	304	301
Building and Building Improvements [Member]
Propert and equipment, gross	2,448	2,304
Leasehold Improvements [Member]
Propert and equipment, gross	12,385	11,994
Construction in Progress [Member]
Propert and equipment, gross	4,387	4,545
Furniture and Fixtures [Member]
Propert and equipment, gross	2,098	1,966
Machinery and Equipment [Member]
Propert and equipment, gross	$ 71,037	$ 55,271

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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