Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000070415-20-000132-index-headers.html | 2020-09-03 16:21:50 | |
| 0000070415-20-000132-index.html | 2020-09-03 16:21:50 | |
| 0000070415-20-000132.txt | 2020-09-03 16:21:50 | |
 0000070415-20-000132-xbrl.zip | 12521 | 2020-09-03 16:21:50 |
| FilingSummary.xml | 1674 | 2020-09-03 16:21:50 |
| Financial_Report.xlsx | 5703 | 2020-09-03 16:21:50 |
| gpx-20200707.htm | 44820 | 2020-09-03 16:21:50 |
| gpx-20200707.xsd | 2427 | 2020-09-03 16:21:50 |
| gpx-20200707_cal.xml | 715 | 2020-09-03 16:21:50 |
| gpx-20200707_def.xml | 1648 | 2020-09-03 16:21:50 |
| gpx-20200707_htm.xml | 12161 | 2020-09-03 16:21:50 |
| gpx-20200707_lab.xml | 25954 | 2020-09-03 16:21:50 |
| gpx-20200707_pre.xml | 13724 | 2020-09-03 16:21:50 |
| MetaLinks.json | 18335 | 2020-09-03 16:21:50 |
| R1.htm | 42138 | 2020-09-03 16:21:50 |
| report.css | 2767 | 2020-09-03 16:21:50 |
| Show.js | 1085 | 2020-09-03 16:21:50 |