Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000071829-21-000075-index-headers.html | 2021-05-24 16:16:28 | |
| 0000071829-21-000075-index.html | 2021-05-24 16:16:28 | |
| 0000071829-21-000075.txt | 2021-05-24 16:16:28 | |
 0000071829-21-000075-xbrl.zip | 39408 | 2021-05-24 16:16:28 |
| a20218kmayexhibit101.htm | 9638 | 2021-05-24 16:16:28 |
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| a20218kmayexhibit103.htm | 9742 | 2021-05-24 16:16:28 |
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| a20218kmayexhibit31.htm | 10467 | 2021-05-24 16:16:28 |
| FilingSummary.xml | 2015 | 2021-05-24 16:16:28 |
| Financial_Report.xlsx | 5756 | 2021-05-24 16:16:28 |
| MetaLinks.json | 21856 | 2021-05-24 16:16:28 |
| nr-20210519.htm | 100191 | 2021-05-24 16:16:28 |
| nr-20210519.xsd | 2311 | 2021-05-24 16:16:28 |
| nr-20210519_def.xml | 5790 | 2021-05-24 16:16:28 |
 nr-20210519_g1.jpg | 11318 | 2021-05-24 16:16:28 |
| nr-20210519_htm.xml | 12586 | 2021-05-24 16:16:28 |
| nr-20210519_lab.xml | 31279 | 2021-05-24 16:16:28 |
| nr-20210519_pre.xml | 16510 | 2021-05-24 16:16:28 |
| R1.htm | 44643 | 2021-05-24 16:16:28 |
| report.css | 2767 | 2021-05-24 16:16:28 |
| Show.js | 1085 | 2021-05-24 16:16:28 |