Note 4 - Property and Equipment, Net

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment Disclosure [Text Block]

4.  Property and Equipment, Net

Property and equipment consist of the following (in thousands):

	As of December 31,
	2013			2012
Equipment and software	$	83,075		$	65,937
Buildings and improvements		29,342			28,319
Land		5,600			5,600
Furniture and fixtures		2,681			2,518
Leasehold improvements		2,150			2,053
Vehicles		976			1,002
Property and equipment, gross		123,824			105,429
Less: accumulated depreciation and amortization		(58,987	)		(46,017	)
Property and equipment, net	$	64,837		$	59,412

Depreciation expense for the years ended December 31, 2013, 2012 and 2011 was $12.1 million, $9.3 million and $8.7 million, respectively.