Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001733998-24-000002-index-headers.html | 2024-01-11 16:07:14 | |
| 0001733998-24-000002-index.html | 2024-01-11 16:07:14 | |
| 0001733998-24-000002.txt | 2024-01-11 16:07:14 | |
 0001733998-24-000002-xbrl.zip | 94024 | 2024-01-11 16:07:14 |
| FilingSummary.xml | 1852 | 2024-01-11 16:07:14 |
| Financial_Report.xlsx | 6036 | 2024-01-11 16:07:14 |
| MetaLinks.json | 22620 | 2024-01-11 16:07:14 |
| nwn-20240105.htm | 48594 | 2024-01-11 16:07:14 |
| nwn-20240105.xsd | 2943 | 2024-01-11 16:07:14 |
| nwn-20240105_def.xml | 16357 | 2024-01-11 16:07:14 |
 nwn-20240105_g1.jpg | 57055 | 2024-01-11 16:07:14 |
 nwn-20240105_g2.jpg | 38736 | 2024-01-11 16:07:14 |
| nwn-20240105_htm.xml | 5087 | 2024-01-11 16:07:14 |
| nwn-20240105_lab.xml | 31893 | 2024-01-11 16:07:14 |
| nwn-20240105_pre.xml | 16705 | 2024-01-11 16:07:14 |
| R1.htm | 45116 | 2024-01-11 16:07:14 |
| report.css | 2767 | 2024-01-11 16:07:14 |
| Show.js | 1085 | 2024-01-11 16:07:14 |