Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000051434-22-000004-index-headers.html | 2022-01-27 07:29:44 | |
| 0000051434-22-000004-index.html | 2022-01-27 07:29:44 | |
| 0000051434-22-000004.txt | 2022-01-27 07:29:44 | |
 0000051434-22-000004-xbrl.zip | 43298 | 2022-01-27 07:29:44 |
| FilingSummary.xml | 1839 | 2022-01-27 07:29:44 |
| Financial_Report.xlsx | 5722 | 2022-01-27 07:29:44 |
 image1.jpg | 15867 | 2022-01-27 07:29:44 |
| ip-20220127.htm | 38422 | 2022-01-27 07:29:44 |
| ip-20220127.xsd | 2394 | 2022-01-27 07:29:44 |
| ip-20220127_def.xml | 14911 | 2022-01-27 07:29:44 |
| ip-20220127_htm.xml | 11501 | 2022-01-27 07:29:44 |
| ip-20220127_lab.xml | 28839 | 2022-01-27 07:29:44 |
| ip-20220127_pre.xml | 15483 | 2022-01-27 07:29:44 |
| MetaLinks.json | 20618 | 2022-01-27 07:29:44 |
| nextgenip-20211231ex991.htm | 587409 | 2022-01-27 07:29:44 |
| R1.htm | 40349 | 2022-01-27 07:29:44 |
| report.css | 2767 | 2022-01-27 07:29:44 |
| Show.js | 1085 | 2022-01-27 07:29:44 |