| Summary of property, plant and equipment |
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September 30,
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December 31,
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2018
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2017
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|
|
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Land
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|
$
|
2,378
|
|
$
|
2,378
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|
Land improvements
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|
|
4,357
|
|
|
4,357
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Leasehold improvements
|
|
|
4,080
|
|
|
4,183
|
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Buildings
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|
|
27,134
|
|
|
26,846
|
|
Machinery and equipment
|
|
|
48,847
|
|
|
44,618
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Furniture and fixtures
|
|
|
14,470
|
|
|
13,681
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Mobile equipment and other
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|
|
4,750
|
|
|
4,576
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Construction-in-process
|
|
|
4,598
|
|
|
4,320
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Total property, plant and equipment
|
|
|
110,614
|
|
|
104,959
|
|
Less accumulated depreciation
|
|
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(56,316)
|
|
|
(50,997)
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Net property, plant and equipment
|
|
$
|
54,298
|
|
$
|
53,962
|
|