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| 0001282637-20-000022-index.html | 2020-10-29 09:04:54 | |
| 0001282637-20-000022.txt | 2020-10-29 09:04:54 | |
 0001282637-20-000022-xbrl.zip | 183226 | 2020-10-29 09:04:54 |
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| neu-20200930_cal.xml | 79348 | 2020-10-29 09:04:54 |
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| neu-2020930xexhibit31b.htm | 12348 | 2020-10-29 09:04:54 |
| neu-2020930xexhibit32a.htm | 6045 | 2020-10-29 09:04:54 |
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| report.css | 2767 | 2020-10-29 09:04:54 |
| Show.js | 1085 | 2020-10-29 09:04:54 |