Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000110019-24-000012-index.html | 2024-08-05 16:24:32 | |
| 0000110019-24-000012.txt | 2024-08-05 16:24:32 | |
 0000110019-24-000012-xbrl.zip | 99311 | 2024-08-05 16:24:32 |
| FilingSummary.xml | 13545 | 2024-08-05 16:24:32 |
| Financial_Report.xlsx | 36258 | 2024-08-05 16:24:32 |
| MetaLinks.json | 342453 | 2024-08-05 16:24:32 |
| nwp-20240630.htm | 445377 | 2024-08-05 16:24:32 |
| nwp-20240630.xsd | 18852 | 2024-08-05 16:24:32 |
| nwp-20240630_cal.xml | 45151 | 2024-08-05 16:24:32 |
| nwp-20240630_def.xml | 139172 | 2024-08-05 16:24:32 |
| nwp-20240630_htm.xml | 204741 | 2024-08-05 16:24:32 |
| nwp-20240630_lab.xml | 247428 | 2024-08-05 16:24:32 |
| nwp-20240630_pre.xml | 169050 | 2024-08-05 16:24:32 |
| nwp_20240630xex-311.htm | 10149 | 2024-08-05 16:24:32 |
| nwp_20240630xex-312.htm | 10149 | 2024-08-05 16:24:32 |
| nwp_20240630xex-32.htm | 6523 | 2024-08-05 16:24:32 |
| R1.htm | 46816 | 2024-08-05 16:24:32 |
| R10.htm | 9826 | 2024-08-05 16:24:32 |
| R11.htm | 8159 | 2024-08-05 16:24:32 |
| R12.htm | 11974 | 2024-08-05 16:24:32 |
| R13.htm | 41775 | 2024-08-05 16:24:32 |
| R14.htm | 8085 | 2024-08-05 16:24:32 |
| R15.htm | 34980 | 2024-08-05 16:24:32 |
| R16.htm | 36901 | 2024-08-05 16:24:32 |
| R17.htm | 28032 | 2024-08-05 16:24:32 |
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| R19.htm | 32176 | 2024-08-05 16:24:32 |
| R2.htm | 59536 | 2024-08-05 16:24:32 |
| R20.htm | 19959 | 2024-08-05 16:24:32 |
| R21.htm | 10229 | 2024-08-05 16:24:32 |
| R22.htm | 21872 | 2024-08-05 16:24:32 |
| R3.htm | 117574 | 2024-08-05 16:24:32 |
| R4.htm | 23360 | 2024-08-05 16:24:32 |
| R5.htm | 75578 | 2024-08-05 16:24:32 |
| R6.htm | 8163 | 2024-08-05 16:24:32 |
| R7.htm | 46945 | 2024-08-05 16:24:32 |
| R8.htm | 5934 | 2024-08-05 16:24:32 |
| R9.htm | 15887 | 2024-08-05 16:24:32 |
| report.css | 2767 | 2024-08-05 16:24:32 |
| Show.js | 1085 | 2024-08-05 16:24:32 |