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Property, Plant and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2017
Property, Plant and Equipment [Abstract] |
Schedule of property, plant and equipment | Property, plant and equipment consist of the following at December 31:
| 2017 |  | 2016
Land | $ | 4,027 |  |  | $ | 4,027 |
Building and improvements | 91,766 |  |  | 90,780 |
Machinery and equipment | 219,675 |  |  | 205,674 |
Construction in progress | 7,837 |  |  | 7,229 |
| 323,305 |  |  | 307,710 |
Less: Accumulated depreciation | (207,076 | ) |  | (185,681 | )
| $ | 116,229 |  |  | $ | 122,029 |
Schedule of future minimum lease payments for capital leases and operating leases | The aggregate future minimum lease commitments for leases at December 31, 2017 are as follows:
| Operating Leases | Capital Leases
2018 | $ | 6,832 |  | $ | 246 |
2019 | 6,117 |  | 246 |
2020 | 3,448 |  | 116 |
2021 | 2,239 |  | — |
2022 | 2,099 |  | — |
Thereafter | 3,613 |  | — |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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