v2.4.0.6
Property and Equipment
12 Months Ended
Dec. 31, 2011
Property and Equipment [Abstract]  
Property, Plant and Equipment Disclosure [Text Block]
PROPERTY AND EQUIPMENT
 
December 31,
 
2011
 
2010
Land
$
695

 
$
695

Building and improvements
7,763

 
7,653

Engineering and test equipment
11,021

 
9,339

Computer equipment and software
25,738

 
24,089

Furniture and fixtures
1,357

 
1,202

Leasehold improvements
4,530

 
4,287

Property and equipment, gross
51,104

 
47,265

Less: accumulated depreciation
(43,107
)
 
(38,921
)
Property and equipment, net
$
7,997

 
$
8,344


Depreciation expense was $4.2 million, $4.9 million, and $6.1 million in 2011, 2010, and 2009, respectively. Depreciation expense included depreciation of computer software costs of $1.2 million, $1.8 million, and $2.3 million in 2011, 2010, and 2009, respectively. Accumulated depreciation related to computer software costs was $14.7 million and $13.4 million at December 31, 2011 and 2010, respectively. The net book value of our computer software was $1.6 million and $1.9 million at December 31, 2011 and 2010, respectively.