| Summary of property, plant and equipment |
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September 30,
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December 31,
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2014
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2013
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Land
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$
|
1,160
|
|
$
|
1,160
|
|
Land improvements
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|
|
1,962
|
|
|
1,849
|
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Buildings
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|
|
16,840
|
|
|
16,743
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Machinery and equipment
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|
|
28,026
|
|
|
25,756
|
|
Furniture and fixtures
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|
|
9,288
|
|
|
8,772
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Mobile equipment and other
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|
|
1,374
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|
|
1,267
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Construction-in-process
|
|
|
667
|
|
|
1,113
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Total property, plant and equipment
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|
|
59,317
|
|
|
56,660
|
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Less accumulated depreciation
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|
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(33,678)
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|
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(31,794)
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Net property, plant and equipment
|
|
$
|
25,639
|
|
$
|
24,866
|
|