Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-24-006815-index-headers.html | 2024-03-06 16:09:22 | |
| 0001437749-24-006815-index.html | 2024-03-06 16:09:22 | |
| 0001437749-24-006815.txt | 2024-03-06 16:09:22 | |
 0001437749-24-006815-xbrl.zip | 39204 | 2024-03-06 16:09:22 |
| ex_635691.htm | 646753 | 2024-03-06 16:09:22 |
 ex_635691img001.jpg | 6529 | 2024-03-06 16:09:22 |
| FilingSummary.xml | 1769 | 2024-03-06 16:09:22 |
| Financial_Report.xlsx | 5839 | 2024-03-06 16:09:22 |
| hpe20240301c_8k.htm | 30459 | 2024-03-06 16:09:22 |
| hpe20240301c_8k_htm.xml | 4623 | 2024-03-06 16:09:22 |
| hpk-20240306.xsd | 3796 | 2024-03-06 16:09:22 |
| hpk-20240306_def.xml | 13685 | 2024-03-06 16:09:22 |
| hpk-20240306_lab.xml | 17943 | 2024-03-06 16:09:22 |
| hpk-20240306_pre.xml | 13717 | 2024-03-06 16:09:22 |
| MetaLinks.json | 22421 | 2024-03-06 16:09:22 |
| R1.htm | 43981 | 2024-03-06 16:09:22 |
| report.css | 2767 | 2024-03-06 16:09:22 |
| Show.js | 1085 | 2024-03-06 16:09:22 |