|
Summary of Significant Accounting Policies (Details 2) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Property, plant and equipment | |||
| Depreciation expense | $ 3,068 | $ 2,819 | $ 2,975 |
| Repairs and maintenance expenses | $ 3,509 | $ 2,855 | $ 4,025 |
|
Land improvements and buildings | Minimum
|
|||
| Property, plant and equipment | |||
| Estimated useful lives | 15 years | ||
|
Land improvements and buildings | Maximum
|
|||
| Property, plant and equipment | |||
| Estimated useful lives | 40 years | ||
|
Machinery and equipment | Minimum
|
|||
| Property, plant and equipment | |||
| Estimated useful lives | 3 years | ||
|
Machinery and equipment | Maximum
|
|||
| Property, plant and equipment | |||
| Estimated useful lives | 20 years | ||
|
Furniture and fixtures | Minimum
|
|||
| Property, plant and equipment | |||
| Estimated useful lives | 3 years | ||
|
Furniture and fixtures | Maximum
|
|||
| Property, plant and equipment | |||
| Estimated useful lives | 12 years | ||
|
Mobile equipment and other | Minimum
|
|||
| Property, plant and equipment | |||
| Estimated useful lives | 3 years | ||
|
Mobile equipment and other | Maximum
|
|||
| Property, plant and equipment | |||
| Estimated useful lives | 10 years | ||