Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000110019-19-000015-index-headers.html | 2019-10-31 08:57:32 | |
| 0000110019-19-000015-index.html | 2019-10-31 08:57:32 | |
| 0000110019-19-000015.txt | 2019-10-31 08:57:32 | |
 0000110019-19-000015-xbrl.zip | 109683 | 2019-10-31 08:57:32 |
| FilingSummary.xml | 13552 | 2019-10-31 08:57:32 |
| Financial_Report.xlsx | 32715 | 2019-10-31 08:57:32 |
| MetaLinks.json | 274345 | 2019-10-31 08:57:32 |
| nwp-20190930.xsd | 16581 | 2019-10-31 08:57:32 |
| nwp-20190930_cal.xml | 53897 | 2019-10-31 08:57:32 |
| nwp-20190930_def.xml | 104276 | 2019-10-31 08:57:32 |
| nwp-20190930_lab.xml | 314589 | 2019-10-31 08:57:32 |
| nwp-20190930_pre.xml | 174303 | 2019-10-31 08:57:32 |
| nwp2019093010q.htm | 595582 | 2019-10-31 08:57:32 |
| nwp2019093010q_htm.xml | 247541 | 2019-10-31 08:57:32 |
| nwp20190930ex-311.htm | 12719 | 2019-10-31 08:57:32 |
| nwp20190930ex-312.htm | 13066 | 2019-10-31 08:57:32 |
| nwp20190930ex-32.htm | 7798 | 2019-10-31 08:57:32 |
| R1.htm | 47521 | 2019-10-31 08:57:32 |
| R10.htm | 12348 | 2019-10-31 08:57:32 |
| R11.htm | 7452 | 2019-10-31 08:57:32 |
| R12.htm | 8397 | 2019-10-31 08:57:32 |
| R13.htm | 12918 | 2019-10-31 08:57:32 |
| R14.htm | 12371 | 2019-10-31 08:57:32 |
| R15.htm | 36622 | 2019-10-31 08:57:32 |
| R16.htm | 9588 | 2019-10-31 08:57:32 |
| R17.htm | 22215 | 2019-10-31 08:57:32 |
| R18.htm | 48915 | 2019-10-31 08:57:32 |
| R19.htm | 12473 | 2019-10-31 08:57:32 |
| R2.htm | 48624 | 2019-10-31 08:57:32 |
| R20.htm | 24189 | 2019-10-31 08:57:32 |
| R21.htm | 9574 | 2019-10-31 08:57:32 |
| R22.htm | 24405 | 2019-10-31 08:57:32 |
| R3.htm | 94454 | 2019-10-31 08:57:32 |
| R4.htm | 14108 | 2019-10-31 08:57:32 |
| R5.htm | 75216 | 2019-10-31 08:57:32 |
| R6.htm | 13452 | 2019-10-31 08:57:32 |
| R7.htm | 15195 | 2019-10-31 08:57:32 |
| R8.htm | 38114 | 2019-10-31 08:57:32 |
| R9.htm | 5853 | 2019-10-31 08:57:32 |
| report.css | 2767 | 2019-10-31 08:57:32 |
| Show.js | 1085 | 2019-10-31 08:57:32 |