Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-25-019287-index-headers.html | 2025-06-03 16:01:23 | |
| 0001437749-25-019287-index.html | 2025-06-03 16:01:23 | |
| 0001437749-25-019287.txt | 2025-06-03 16:01:23 | |
 0001437749-25-019287-xbrl.zip | 10350 | 2025-06-03 16:01:23 |
| FilingSummary.xml | 1764 | 2025-06-03 16:01:23 |
| hpe20250603_8k.htm | 34365 | 2025-06-03 16:01:23 |
| hpe20250603_8k_htm.xml | 4631 | 2025-06-03 16:01:23 |
| hpk-20250603.xsd | 3966 | 2025-06-03 16:01:23 |
| hpk-20250603_def.xml | 13685 | 2025-06-03 16:01:23 |
| hpk-20250603_lab.xml | 17943 | 2025-06-03 16:01:23 |
| hpk-20250603_pre.xml | 13717 | 2025-06-03 16:01:23 |
| MetaLinks.json | 28419 | 2025-06-03 16:01:23 |
| R1.htm | 43962 | 2025-06-03 16:01:23 |
| report.css | 2766 | 2025-06-03 16:01:23 |
| Show.js | 1084 | 2025-06-03 16:01:23 |