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Foreign Operations (Tables) | 12 Months Ended
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Dec. 31, 2017
Segment Reporting [Abstract] |
Sales and property and equipment, net by country | The following table provides information related to sales by country, based on the ship to location of customers' production facilities, for the years ended December 31:
| 2017 |  | 2016 |  | 2015
United States | $ | 103,513,000 |  |  | $ | 119,018,000 |  |  | $ | 129,651,000 |
Mexico | 52,496,000 |  |  | 51,389,000 |  |  | 63,586,000 |
Canada | 5,664,000 |  |  | 4,475,000 |  |  | 5,831,000 |
Total | $ | 161,673,000 |  |  | $ | 174,882,000 |  |  | $ | 199,068,000 |
The following table provides information related to the location of property, plant and equipment, net, as of December 31:
| 2017 |  | 2016
United States | $ | 40,594,000 |  |  | $ | 42,547,000 |
Mexico | 28,037,000 |  |  | 28,054,000 |
Total | $ | 68,631,000 |  |  | $ | 70,601,000 |

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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599 + Details
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