Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-25-029088-index-headers.html | 2025-09-15 17:26:35 | |
| 0001437749-25-029088-index.html | 2025-09-15 17:26:35 | |
| 0001437749-25-029088.txt | 2025-09-15 17:26:35 | |
 0001437749-25-029088-xbrl.zip | 24639 | 2025-09-15 17:26:35 |
| ex_861548.htm | 81839 | 2025-09-15 17:26:35 |
| FilingSummary.xml | 1748 | 2025-09-15 17:26:35 |
| hpe20250915_8k.htm | 31861 | 2025-09-15 17:26:35 |
| hpe20250915_8k_htm.xml | 2945 | 2025-09-15 17:26:35 |
| hpk-20250909.xsd | 3571 | 2025-09-15 17:26:35 |
| hpk-20250909_def.xml | 11801 | 2025-09-15 17:26:35 |
| hpk-20250909_lab.xml | 15848 | 2025-09-15 17:26:35 |
| hpk-20250909_pre.xml | 12016 | 2025-09-15 17:26:35 |
| MetaLinks.json | 26235 | 2025-09-15 17:26:35 |
| R1.htm | 40079 | 2025-09-15 17:26:35 |
| report.css | 2767 | 2025-09-15 17:26:35 |
| Show.js | 1084 | 2025-09-15 17:26:35 |