Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-25-025922-index-headers.html | 2025-08-11 16:02:34 | |
| 0001437749-25-025922-index.html | 2025-08-11 16:02:34 | |
| 0001437749-25-025922.txt | 2025-08-11 16:02:34 | |
 0001437749-25-025922-xbrl.zip | 34408 | 2025-08-11 16:02:34 |
| ex_850628.htm | 545280 | 2025-08-11 16:02:34 |
| FilingSummary.xml | 1764 | 2025-08-11 16:02:34 |
| hpe20250807_8k.htm | 29332 | 2025-08-11 16:02:34 |
| hpe20250807_8k_htm.xml | 4732 | 2025-08-11 16:02:34 |
| hpk-20250811.xsd | 3967 | 2025-08-11 16:02:34 |
| hpk-20250811_def.xml | 14069 | 2025-08-11 16:02:34 |
| hpk-20250811_lab.xml | 18492 | 2025-08-11 16:02:34 |
| hpk-20250811_pre.xml | 14156 | 2025-08-11 16:02:34 |
 logobig.jpg | 22372 | 2025-08-11 16:02:34 |
| MetaLinks.json | 28938 | 2025-08-11 16:02:34 |
| R1.htm | 45476 | 2025-08-11 16:02:34 |
| report.css | 2767 | 2025-08-11 16:02:34 |
| Show.js | 1085 | 2025-08-11 16:02:34 |