Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000110019-15-000010-index-headers.html | 2015-07-30 08:48:36 | |
| 0000110019-15-000010-index.html | 2015-07-30 08:48:36 | |
| 0000110019-15-000010.txt | 2015-07-30 08:48:36 | |
 0000110019-15-000010-xbrl.zip | 59309 | 2015-07-30 08:48:36 |
| FilingSummary.xml | 9454 | 2015-07-30 08:48:36 |
| Financial_Report.xlsx | 24141 | 2015-07-30 08:48:36 |
| nwp-20150630.xml | 90533 | 2015-07-30 08:48:36 |
| nwp-20150630.xsd | 15143 | 2015-07-30 08:48:36 |
| nwp-20150630_cal.xml | 50017 | 2015-07-30 08:48:36 |
| nwp-20150630_def.xml | 52735 | 2015-07-30 08:48:36 |
| nwp-20150630_lab.xml | 242051 | 2015-07-30 08:48:36 |
| nwp-20150630_pre.xml | 126181 | 2015-07-30 08:48:36 |
| nwp_20150630x10q.htm | 357490 | 2015-07-30 08:48:36 |
| nwp_20150630xex-311.htm | 12687 | 2015-07-30 08:48:36 |
| nwp_20150630xex-312.htm | 13033 | 2015-07-30 08:48:36 |
| nwp_20150630xex-32.htm | 7757 | 2015-07-30 08:48:36 |
| R1.htm | 20657 | 2015-07-30 08:48:36 |
| R10.htm | 15985 | 2015-07-30 08:48:36 |
| R11.htm | 7955 | 2015-07-30 08:48:36 |
| R12.htm | 22517 | 2015-07-30 08:48:36 |
| R13.htm | 9826 | 2015-07-30 08:48:36 |
| R14.htm | 9549 | 2015-07-30 08:48:36 |
| R15.htm | 21070 | 2015-07-30 08:48:36 |
| R2.htm | 44104 | 2015-07-30 08:48:36 |
| R3.htm | 112744 | 2015-07-30 08:48:36 |
| R4.htm | 82189 | 2015-07-30 08:48:36 |
| R5.htm | 14174 | 2015-07-30 08:48:36 |
| R6.htm | 15021 | 2015-07-30 08:48:36 |
| R7.htm | 8152 | 2015-07-30 08:48:36 |
| R8.htm | 10356 | 2015-07-30 08:48:36 |
| R9.htm | 13650 | 2015-07-30 08:48:36 |
| report.css | 2767 | 2015-07-30 08:48:36 |
| Show.js | 1410 | 2015-07-30 08:48:36 |