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Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2013
Property, Plant and Equipment [Abstract]  
Property, plant and equipment
Property and equipment, net, as of December 31, 2013 and 2012 consist of the following:
 
December 31,
 
2013
 
2012
Land
$
3,827

 
$
3,827

Building and improvements
22,228

 
21,297

Leasehold improvements
286

 
286

Machinery and equipment
35,182

 
32,266

Office and computer equipment
12,024

 
10,663

Motor vehicles
51

 
51

 
73,598

 
68,390

Less accumulated depreciation
(36,456
)
 
(31,657
)
 
$
37,142

 
$
36,733