Note 4 - Property, Equipment and Leasehold Improvements (Detail) - Property, Equipment and Leasehold Improvements (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2012	Dec. 31, 2011
Property, plant, and equipment	$ 15,798	$ 13,651
Less accumulated depreciation and amortization	5,965	4,733
Total	9,833	8,918
Building [Member]
Estimated useful lives	15 years
Property, plant, and equipment	600	600
Computer and Office Equipment [Member]
Estimated useful lives	3 years
Property, plant, and equipment	12,619	10,742
Furniture and Fixtures [Member]
Estimated useful lives	3 - 5 years
Property, plant, and equipment	1,844	1,682
Leasehold Improvements [Member]
Estimated useful lives	Lease term
Property, plant, and equipment	$ 735	$ 627

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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