Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-24-010594-index-headers.html | 2024-04-02 16:04:25 | |
| 0001437749-24-010594-index.html | 2024-04-02 16:04:25 | |
| 0001437749-24-010594.txt | 2024-04-02 16:04:25 | |
 0001437749-24-010594-xbrl.zip | 15243 | 2024-04-02 16:04:25 |
| ex_649019.htm | 33421 | 2024-04-02 16:04:25 |
| FilingSummary.xml | 1764 | 2024-04-02 16:04:25 |
| Financial_Report.xlsx | 5837 | 2024-04-02 16:04:25 |
| hpe20240402_8k.htm | 31389 | 2024-04-02 16:04:25 |
| hpe20240402_8k_htm.xml | 4621 | 2024-04-02 16:04:25 |
| hpk-20240329.xsd | 3796 | 2024-04-02 16:04:25 |
| hpk-20240329_def.xml | 13685 | 2024-04-02 16:04:25 |
| hpk-20240329_lab.xml | 17943 | 2024-04-02 16:04:25 |
| hpk-20240329_pre.xml | 13717 | 2024-04-02 16:04:25 |
| MetaLinks.json | 22417 | 2024-04-02 16:04:25 |
| R1.htm | 43977 | 2024-04-02 16:04:25 |
| report.css | 2767 | 2024-04-02 16:04:25 |
| Show.js | 1085 | 2024-04-02 16:04:25 |