Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-26-056345-index-headers.html | 2026-05-06 17:00:30 | |
| 0001104659-26-056345-index.html | 2026-05-06 17:00:30 | |
| 0001104659-26-056345.txt | 2026-05-06 17:00:30 | |
 0001104659-26-056345-xbrl.zip | 32048 | 2026-05-06 17:00:30 |
| FilingSummary.xml | 1832 | 2026-05-06 17:00:30 |
| hnrg-20260506.xsd | 3530 | 2026-05-06 17:00:30 |
| hnrg-20260506x8k.htm | 30359 | 2026-05-06 17:00:30 |
 hnrg-20260506x8k001.jpg | 3186 | 2026-05-06 17:00:30 |
| hnrg-20260506x8k_htm.xml | 4608 | 2026-05-06 17:00:30 |
| hnrg-20260506xex99d1.htm | 489556 | 2026-05-06 17:00:30 |
 hnrg-20260506xex99d1001.jpg | 6560 | 2026-05-06 17:00:30 |
| hnrg-20260506_def.xml | 2862 | 2026-05-06 17:00:30 |
| hnrg-20260506_lab.xml | 16593 | 2026-05-06 17:00:30 |
| hnrg-20260506_pre.xml | 10921 | 2026-05-06 17:00:30 |
| MetaLinks.json | 17489 | 2026-05-06 17:00:30 |
| R1.htm | 38103 | 2026-05-06 17:00:30 |
| report.css | 2767 | 2026-05-06 17:00:30 |
| Show.js | 1085 | 2026-05-06 17:00:30 |