Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000070415-21-000075-index-headers.html | 2021-05-06 06:54:48 | |
| 0000070415-21-000075-index.html | 2021-05-06 06:54:48 | |
| 0000070415-21-000075.txt | 2021-05-06 06:54:48 | |
 0000070415-21-000075-xbrl.zip | 23267 | 2021-05-06 06:54:48 |
| earningsrelease-gpx03312021.htm | 163155 | 2021-05-06 06:54:48 |
| FilingSummary.xml | 1721 | 2021-05-06 06:54:48 |
| Financial_Report.xlsx | 5690 | 2021-05-06 06:54:48 |
 gpstrategieslogo2020cmykhi.jpg | 922111 | 2021-05-06 06:54:48 |
| gpx-20210506.htm | 40158 | 2021-05-06 06:54:48 |
| gpx-20210506.xsd | 2427 | 2021-05-06 06:54:48 |
| gpx-20210506_cal.xml | 715 | 2021-05-06 06:54:48 |
| gpx-20210506_def.xml | 1648 | 2021-05-06 06:54:48 |
| gpx-20210506_htm.xml | 11778 | 2021-05-06 06:54:48 |
| gpx-20210506_lab.xml | 24993 | 2021-05-06 06:54:48 |
| gpx-20210506_pre.xml | 13195 | 2021-05-06 06:54:48 |
| MetaLinks.json | 17820 | 2021-05-06 06:54:48 |
| R1.htm | 40177 | 2021-05-06 06:54:48 |
| report.css | 2767 | 2021-05-06 06:54:48 |
| Show.js | 1085 | 2021-05-06 06:54:48 |