Note 4 - Property and Equipment, net (Detail) - Property, Plant and Equipment (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Poperty Plant and Equipement	$ 105,429	$ 86,851
Less: accumulated depreciation and amortization	(46,017)	(39,057)
Property and equipment, net	59,412	47,794
Building	28,319	21,632
Land	5,600	6,044
Furniture and fixtures	2,518	1,403
Leasehold improvements	2,053	3,281
Computer Equipment [Member]
Poperty Plant and Equipement	65,937	53,514
Vehicles [Member]
Poperty Plant and Equipement	$ 1,002	$ 977