Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001733998-20-000033-index-headers.html | 2020-06-22 16:06:06 | |
| 0001733998-20-000033-index.html | 2020-06-22 16:06:06 | |
| 0001733998-20-000033.txt | 2020-06-22 16:06:06 | |
 0001733998-20-000033-xbrl.zip | 24295 | 2020-06-22 16:06:06 |
| a8-kmccurdyappointment.htm | 55210 | 2020-06-22 16:06:06 |
| a8-kmccurdyappointment_htm.xml | 4565 | 2020-06-22 16:06:06 |
| FilingSummary.xml | 1899 | 2020-06-22 16:06:06 |
| Financial_Report.xlsx | 5797 | 2020-06-22 16:06:06 |
| MetaLinks.json | 19186 | 2020-06-22 16:06:06 |
| newdirectorjune2020.htm | 6997 | 2020-06-22 16:06:06 |
 nwholdingsa01.jpg | 6027 | 2020-06-22 16:06:06 |
| nwn-20200618.xsd | 4801 | 2020-06-22 16:06:06 |
| nwn-20200618_cal.xml | 702 | 2020-06-22 16:06:06 |
| nwn-20200618_def.xml | 1552 | 2020-06-22 16:06:06 |
| nwn-20200618_lab.xml | 26639 | 2020-06-22 16:06:06 |
| nwn-20200618_pre.xml | 14178 | 2020-06-22 16:06:06 |
| R1.htm | 38743 | 2020-06-22 16:06:06 |
| report.css | 2767 | 2020-06-22 16:06:06 |
| Show.js | 1085 | 2020-06-22 16:06:06 |