Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001733998-24-000083-index-headers.html | 2024-05-23 17:00:31 | |
| 0001733998-24-000083-index.html | 2024-05-23 17:00:31 | |
| 0001733998-24-000083.txt | 2024-05-23 17:00:31 | |
 0001733998-24-000083-xbrl.zip | 99853 | 2024-05-23 17:00:31 |
| ex991pressreleaseofnorthwe.htm | 21752 | 2024-05-23 17:00:31 |
| FilingSummary.xml | 1857 | 2024-05-23 17:00:31 |
| Financial_Report.xlsx | 6033 | 2024-05-23 17:00:31 |
 image_0.jpg | 21767 | 2024-05-23 17:00:31 |
| MetaLinks.json | 22560 | 2024-05-23 17:00:31 |
| nwn-20240523.htm | 56165 | 2024-05-23 17:00:31 |
| nwn-20240523.xsd | 2941 | 2024-05-23 17:00:31 |
| nwn-20240523_def.xml | 16357 | 2024-05-23 17:00:31 |
 nwn-20240523_g1.jpg | 57055 | 2024-05-23 17:00:31 |
 nwn-20240523_g2.jpg | 38736 | 2024-05-23 17:00:31 |
| nwn-20240523_htm.xml | 5087 | 2024-05-23 17:00:31 |
| nwn-20240523_lab.xml | 28855 | 2024-05-23 17:00:31 |
| nwn-20240523_pre.xml | 16705 | 2024-05-23 17:00:31 |
| R1.htm | 45117 | 2024-05-23 17:00:31 |
| report.css | 2767 | 2024-05-23 17:00:31 |
| Show.js | 1085 | 2024-05-23 17:00:31 |