Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001213900-23-022082-index-headers.html | 2023-03-22 16:15:32 | |
| 0001213900-23-022082-index.html | 2023-03-22 16:15:32 | |
| 0001213900-23-022082.txt | 2023-03-22 16:15:32 | |
 0001213900-23-022082-xbrl.zip | 27925 | 2023-03-22 16:15:32 |
| ex991_1.htm | 323391 | 2023-03-22 16:15:32 |
| FilingSummary.xml | 1687 | 2023-03-22 16:15:32 |
| Financial_Report.xlsx | 5791 | 2023-03-22 16:15:32 |
| MetaLinks.json | 20175 | 2023-03-22 16:15:32 |
| nn-20230322.htm | 41561 | 2023-03-22 16:15:32 |
| nn-20230322.xsd | 4675 | 2023-03-22 16:15:32 |
| nn-20230322_cal.xml | 865 | 2023-03-22 16:15:32 |
| nn-20230322_def.xml | 17690 | 2023-03-22 16:15:32 |
| nn-20230322_htm.xml | 4907 | 2023-03-22 16:15:32 |
| nn-20230322_lab.xml | 22904 | 2023-03-22 16:15:32 |
| nn-20230322_pre.xml | 16577 | 2023-03-22 16:15:32 |
| R1.htm | 43400 | 2023-03-22 16:15:32 |
| report.css | 2767 | 2023-03-22 16:15:32 |
| Show.js | 1085 | 2023-03-22 16:15:32 |