Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001096906-22-001343-index-headers.html | 2022-06-07 13:34:28 | |
| 0001096906-22-001343-index.html | 2022-06-07 13:34:28 | |
| 0001096906-22-001343.txt | 2022-06-07 13:34:28 | |
 0001096906-22-001343-xbrl.zip | 29392 | 2022-06-07 13:34:28 |
| FilingSummary.xml | 1795 | 2022-06-07 13:34:28 |
| Financial_Report.xlsx | 5553 | 2022-06-07 13:34:28 |
| hyex-20220525.htm | 26165 | 2022-06-07 13:34:28 |
| hyex-20220525.xsd | 21844 | 2022-06-07 13:34:28 |
| hyex-20220525_def.xml | 1809 | 2022-06-07 13:34:28 |
| hyex-20220525_htm.xml | 2331 | 2022-06-07 13:34:28 |
| hyex-20220525_lab.xml | 13345 | 2022-06-07 13:34:28 |
| hyex-20220525_pre.xml | 8638 | 2022-06-07 13:34:28 |
 hyexex10z1_1.jpg | 2722 | 2022-06-07 13:34:28 |
 hyexex10z2_1.jpg | 2722 | 2022-06-07 13:34:28 |
| hyex_ex10z1.htm | 78147 | 2022-06-07 13:34:28 |
| hyex_ex10z2.htm | 94710 | 2022-06-07 13:34:28 |
| MetaLinks.json | 15510 | 2022-06-07 13:34:28 |
| R1.htm | 33755 | 2022-06-07 13:34:28 |
| report.css | 2767 | 2022-06-07 13:34:28 |
| Show.js | 1085 | 2022-06-07 13:34:28 |