Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0001437749-22-027408-index.html | 2022-11-15 07:10:44 | |
| 0001437749-22-027408.txt | 2022-11-15 07:10:44 | |
 0001437749-22-027408-xbrl.zip | 10912 | 2022-11-15 07:10:44 |
| ex_447294.htm | 12379 | 2022-11-15 07:10:44 |
| FilingSummary.xml | 1769 | 2022-11-15 07:10:44 |
| Financial_Report.xlsx | 5836 | 2022-11-15 07:10:44 |
| hpe20221114b_8k.htm | 29963 | 2022-11-15 07:10:44 |
| hpe20221114b_8k_htm.xml | 4229 | 2022-11-15 07:10:44 |
| hpk-20221115.xsd | 3984 | 2022-11-15 07:10:44 |
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| R1.htm | 43980 | 2022-11-15 07:10:44 |
| report.css | 2767 | 2022-11-15 07:10:44 |
| Show.js | 1085 | 2022-11-15 07:10:44 |
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