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Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2014
Property, Plant and Equipment [Abstract]  
Property, plant and equipment
Property and equipment, net, as of December 31, 2014 and 2013 consist of the following:
 
December 31,
 
2014
 
2013
Land
$
3,828

 
$
3,827

Building and improvements
22,323

 
22,228

Leasehold improvements
351

 
286

Machinery and equipment
42,869

 
35,182

Office and computer equipment
13,760

 
12,024

Motor vehicles
51

 
51

 
83,182

 
73,598

Less accumulated depreciation
(41,486
)
 
(36,456
)
 
$
41,696

 
$
37,142