Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-26-027176-index-headers.html | 2026-03-12 17:27:35 | |
| 0001104659-26-027176-index.html | 2026-03-12 17:27:35 | |
| 0001104659-26-027176.txt | 2026-03-12 17:27:35 | |
 0001104659-26-027176-xbrl.zip | 32110 | 2026-03-12 17:27:35 |
| FilingSummary.xml | 1832 | 2026-03-12 17:27:35 |
| hnrg-20260312.xsd | 3530 | 2026-03-12 17:27:35 |
| hnrg-20260312x8k.htm | 30368 | 2026-03-12 17:27:35 |
 hnrg-20260312x8k001.jpg | 3186 | 2026-03-12 17:27:35 |
| hnrg-20260312x8k_htm.xml | 4654 | 2026-03-12 17:27:35 |
| hnrg-20260312xex99d1.htm | 496269 | 2026-03-12 17:27:35 |
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| hnrg-20260312_def.xml | 2862 | 2026-03-12 17:27:35 |
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| R1.htm | 38104 | 2026-03-12 17:27:35 |
| report.css | 2767 | 2026-03-12 17:27:35 |
| Show.js | 1085 | 2026-03-12 17:27:35 |