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INTANGIBLE ASSETS (Tables) | 3 Months Ended
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Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets and Goodwill [Table Text Block] | The components of intangible assets consisted of the following as of the dates set forth below (amounts in thousands):
| Weighted Average Useful Lives (in years) March 31, 2018 |  | March 31, 2018 |  | December 31, 2017
Amortizable intangible assets: |  |  |  |  |
Customer relationships | 9.4 |  | $ | 14,237 |  |  | $ | 13,922 |
Patents, trademarks and other | 7.4 |  | 15,288 |  |  | 15,208 |
Total at cost |  |  | 29,525 |  |  | 29,130 |
Less accumulated amortization |  |  | (15,006 | ) |  | (13,855 | )
|  |  | $ | 14,519 |  |  | $ | 15,275 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] | The estimated aggregate amortization expense at March 31, 2018, for each of the years (or other periods) set forth below was as follows (amounts in thousands):
April 1 - December 31, 2018 | $ | 1,775 |
2019 | 2,306 |
2020 | 2,285 |
2021 | 1,494 |
2022 | 1,067 |
Thereafter | 5,592 |
| $ | 14,519 |

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- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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