Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-23-020709-index-headers.html | 2023-07-26 16:02:18 | |
| 0001437749-23-020709-index.html | 2023-07-26 16:02:18 | |
| 0001437749-23-020709.txt | 2023-07-26 16:02:18 | |
 0001437749-23-020709-xbrl.zip | 11207 | 2023-07-26 16:02:18 |
| ex_548730.htm | 3734 | 2023-07-26 16:02:18 |
| FilingSummary.xml | 1762 | 2023-07-26 16:02:18 |
| Financial_Report.xlsx | 5835 | 2023-07-26 16:02:18 |
| hpe20230726_8k.htm | 29117 | 2023-07-26 16:02:18 |
| hpe20230726_8k_htm.xml | 4222 | 2023-07-26 16:02:18 |
| hpk-20230721.xsd | 3797 | 2023-07-26 16:02:18 |
| hpk-20230721_def.xml | 13686 | 2023-07-26 16:02:18 |
| hpk-20230721_lab.xml | 17944 | 2023-07-26 16:02:18 |
| hpk-20230721_pre.xml | 13718 | 2023-07-26 16:02:18 |
 lglogo.jpg | 14253 | 2023-07-26 16:02:18 |
| MetaLinks.json | 22417 | 2023-07-26 16:02:18 |
| R1.htm | 43978 | 2023-07-26 16:02:18 |
| report.css | 2767 | 2023-07-26 16:02:18 |
| Show.js | 1085 | 2023-07-26 16:02:18 |