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Note 8 - Geographic Information (Detail) - Property and Equipment by geographic area (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Property and Equipment, net:
Property and Equipment, net	$ 99,531	$ 100,545
United States [Member]
Property and Equipment, net:
Property and Equipment, net	75,538	75,156
United Kingdom [Member]
Property and Equipment, net:
Property and Equipment, net	5,885	6,568
Not Connected to a Country [Member]
Property and Equipment, net:
Property and Equipment, net	1,529	1,505
Other Countries [Member]
Property and Equipment, net:
Property and Equipment, net	$ 16,579	$ 17,316

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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