Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-23-025060-index-headers.html | 2023-09-01 16:08:27 | |
| 0001437749-23-025060-index.html | 2023-09-01 16:08:27 | |
| 0001437749-23-025060.txt | 2023-09-01 16:08:27 | |
 0001437749-23-025060-xbrl.zip | 10593 | 2023-09-01 16:08:27 |
| FilingSummary.xml | 1731 | 2023-09-01 16:08:27 |
| Financial_Report.xlsx | 5836 | 2023-09-01 16:08:27 |
| hpe20230901_8k.htm | 28657 | 2023-09-01 16:08:27 |
| hpe20230901_8k_htm.xml | 4221 | 2023-09-01 16:08:27 |
| hpk-20230831.xsd | 3796 | 2023-09-01 16:08:27 |
| hpk-20230831_def.xml | 13685 | 2023-09-01 16:08:27 |
| hpk-20230831_lab.xml | 17943 | 2023-09-01 16:08:27 |
| hpk-20230831_pre.xml | 13717 | 2023-09-01 16:08:27 |
| MetaLinks.json | 22417 | 2023-09-01 16:08:27 |
| R1.htm | 43977 | 2023-09-01 16:08:27 |
| report.css | 2767 | 2023-09-01 16:08:27 |
| Show.js | 1084 | 2023-09-01 16:08:27 |