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| 0001635650-22-000021.txt | 2022-05-03 15:18:17 | |
 0001635650-22-000021-xbrl.zip | 164410 | 2022-05-03 15:18:17 |
| FilingSummary.xml | 30798 | 2022-05-03 15:18:17 |
| Financial_Report.xlsx | 72293 | 2022-05-03 15:18:17 |
| gpp-20220331.xsd | 40542 | 2022-05-03 15:18:17 |
| gpp-20220331x10q.htm | 2042382 | 2022-05-03 15:18:17 |
| gpp-20220331x10q_htm.xml | 1665509 | 2022-05-03 15:18:17 |
| gpp-20220331xex31_1.htm | 24775 | 2022-05-03 15:18:17 |
| gpp-20220331xex31_2.htm | 25150 | 2022-05-03 15:18:17 |
| gpp-20220331xex32_1.htm | 14523 | 2022-05-03 15:18:17 |
| gpp-20220331xex32_2.htm | 14380 | 2022-05-03 15:18:17 |
| gpp-20220331_cal.xml | 49467 | 2022-05-03 15:18:17 |
| gpp-20220331_def.xml | 178828 | 2022-05-03 15:18:17 |
| gpp-20220331_lab.xml | 315181 | 2022-05-03 15:18:17 |
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| R9.htm | 31320 | 2022-05-03 15:18:17 |
| report.css | 2767 | 2022-05-03 15:18:17 |
| Show.js | 1085 | 2022-05-03 15:18:17 |