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Property, Plant and Equipment
 6 Months Ended
Jun. 30, 2015
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consisted of the following (in thousands):
 
Estimated
Useful Life
(in years)
 
As of
 
 
June 30, 2015
 
December 31, 2014
Automobiles
5
 
$
23

 
$
23

Leasehold improvements
5
to
20
 
1,974

 
2,144

Computer software and equipment
3
to
7
 
23,209

 
25,397

Machinery and equipment
3
to
5
 
6,709

 
6,709

Furniture and fixtures
5
 
1,240

 
1,108

Work in progress(1)
N/A
 
1,131

 
421

Total cost
 
 
 
 
34,286

 
35,802

Accumulated depreciation
 
 
 
 
(23,742
)
 
(26,168
)
Total property, plant and equipment, net
 
 
 
 
$
10,544

 
$
9,634


(1) Work in progress includes production tooling and internal use software development.