Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0001437749-22-009929-index.html | 2022-04-27 17:17:52 | |
| 0001437749-22-009929.txt | 2022-04-27 17:17:52 | |
 0001437749-22-009929-xbrl.zip | 16006 | 2022-04-27 17:17:52 |
 a01.jpg | 6529 | 2022-04-27 17:17:52 |
| ex_365402.htm | 17280 | 2022-04-27 17:17:52 |
| ex_365574.htm | 6007 | 2022-04-27 17:17:52 |
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| Financial_Report.xlsx | 5793 | 2022-04-27 17:17:52 |
| hpe20220427_8k.htm | 34816 | 2022-04-27 17:17:52 |
| hpe20220427_8k_htm.xml | 4229 | 2022-04-27 17:17:52 |
| hpk-20220426.xsd | 3983 | 2022-04-27 17:17:52 |
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| hpk-20220426_lab.xml | 18064 | 2022-04-27 17:17:52 |
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| R1.htm | 44681 | 2022-04-27 17:17:52 |
| report.css | 2767 | 2022-04-27 17:17:52 |
| Show.js | 1085 | 2022-04-27 17:17:52 |
 slide01.jpg | 70121 | 2022-04-27 17:17:52 |
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