Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001258602-22-000002-index-headers.html | 2022-01-28 06:55:03 | |
| 0001258602-22-000002-index.html | 2022-01-28 06:55:03 | |
| 0001258602-22-000002.txt | 2022-01-28 06:55:03 | |
 0001258602-22-000002-xbrl.zip | 10443 | 2022-01-28 06:55:03 |
| FilingSummary.xml | 1596 | 2022-01-28 06:55:03 |
| Financial_Report.xlsx | 5662 | 2022-01-28 06:55:03 |
| MetaLinks.json | 16492 | 2022-01-28 06:55:03 |
| nni-20220127.htm | 29705 | 2022-01-28 06:55:03 |
| nni-20220127.xsd | 1902 | 2022-01-28 06:55:03 |
| nni-20220127_htm.xml | 10827 | 2022-01-28 06:55:03 |
| nni-20220127_lab.xml | 23832 | 2022-01-28 06:55:03 |
| nni-20220127_pre.xml | 12512 | 2022-01-28 06:55:03 |
| R1.htm | 38576 | 2022-01-28 06:55:03 |
| report.css | 2766 | 2022-01-28 06:55:03 |
| Show.js | 1084 | 2022-01-28 06:55:03 |