Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000070415-21-000039-index-headers.html | 2021-03-11 06:56:13 | |
| 0000070415-21-000039-index.html | 2021-03-11 06:56:13 | |
| 0000070415-21-000039.txt | 2021-03-11 06:56:13 | |
 0000070415-21-000039-xbrl.zip | 26011 | 2021-03-11 06:56:13 |
| earningspressrelease-gpx12.htm | 232247 | 2021-03-11 06:56:13 |
| FilingSummary.xml | 1720 | 2021-03-11 06:56:13 |
| Financial_Report.xlsx | 5467 | 2021-03-11 06:56:13 |
 gpstrategieslogo2020cmykhia.jpg | 922111 | 2021-03-11 06:56:13 |
| gpx-20210311.htm | 38956 | 2021-03-11 06:56:13 |
| gpx-20210311.xsd | 2427 | 2021-03-11 06:56:13 |
| gpx-20210311_cal.xml | 715 | 2021-03-11 06:56:13 |
| gpx-20210311_def.xml | 1648 | 2021-03-11 06:56:13 |
| gpx-20210311_htm.xml | 11778 | 2021-03-11 06:56:13 |
| gpx-20210311_lab.xml | 24993 | 2021-03-11 06:56:13 |
| gpx-20210311_pre.xml | 13195 | 2021-03-11 06:56:13 |
| MetaLinks.json | 17820 | 2021-03-11 06:56:13 |
| R1.htm | 40178 | 2021-03-11 06:56:13 |
| report.css | 2767 | 2021-03-11 06:56:13 |
| Show.js | 1085 | 2021-03-11 06:56:13 |