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Property, plant and equipment (Tables)
 12 Months Ended
Dec. 31, 2014
Property, plant and equipment  
Summary of property, plant and equipment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

December 31,

 

 

2014

 

2013

 

 

 

 

 

Land

 

$
1,500 

 

$
1,160 

Land improvements

 
2,292 

 
1,849 

Leasehold improvements

 

 
499 

 

 

 -

Buildings

 
21,918 

 
16,743 

Machinery and equipment

 
31,780 

 
25,756 

Furniture and fixtures

 
10,070 

 
8,772 

Mobile equipment and other

 
1,999 

 
1,267 

Construction-in-process

 
1,930 

 
1,113 

Total property, plant and equipment

 
71,988 

 
56,660 

Less accumulated depreciation

 
(34,442)

 
(31,794)

Net property, plant and equipment

 

$
37,546 

 

$
24,866