Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000051434-21-000015-index-headers.html | 2021-04-29 07:20:17 | |
| 0000051434-21-000015-index.html | 2021-04-29 07:20:17 | |
| 0000051434-21-000015.txt | 2021-04-29 07:20:17 | |
 0000051434-21-000015-xbrl.zip | 38324 | 2021-04-29 07:20:17 |
| FilingSummary.xml | 1886 | 2021-04-29 07:20:17 |
| Financial_Report.xlsx | 5723 | 2021-04-29 07:20:17 |
 image11a.jpg | 15867 | 2021-04-29 07:20:17 |
| ip-20210429.htm | 38577 | 2021-04-29 07:20:17 |
| ip-20210429.xsd | 2671 | 2021-04-29 07:20:17 |
| ip-20210429_cal.xml | 821 | 2021-04-29 07:20:17 |
| ip-20210429_def.xml | 15079 | 2021-04-29 07:20:17 |
| ip-20210429_htm.xml | 11456 | 2021-04-29 07:20:17 |
| ip-20210429_lab.xml | 29007 | 2021-04-29 07:20:17 |
| ip-20210429_pre.xml | 15651 | 2021-04-29 07:20:17 |
| MetaLinks.json | 21308 | 2021-04-29 07:20:17 |
| nextgenip-20210331ex991.htm | 415660 | 2021-04-29 07:20:17 |
| R1.htm | 40389 | 2021-04-29 07:20:17 |
| report.css | 2767 | 2021-04-29 07:20:17 |
| Show.js | 1085 | 2021-04-29 07:20:17 |