Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000788965-26-000006-index-headers.html | 2026-06-26 17:06:36 | |
| 0000788965-26-000006-index.html | 2026-06-26 17:06:36 | |
| 0000788965-26-000006.txt | 2026-06-26 17:06:36 | |
 0000788965-26-000006-xbrl.zip | 20562 | 2026-06-26 17:06:36 |
| FilingSummary.xml | 1832 | 2026-06-26 17:06:36 |
| hnrg-20260625.xsd | 3530 | 2026-06-26 17:06:36 |
| hnrg-20260625x8k.htm | 45586 | 2026-06-26 17:06:36 |
 hnrg-20260625x8k001.jpg | 3186 | 2026-06-26 17:06:36 |
| hnrg-20260625x8k_htm.xml | 4654 | 2026-06-26 17:06:36 |
| hnrg-20260625xex10d1.htm | 51839 | 2026-06-26 17:06:36 |
| hnrg-20260625_def.xml | 2862 | 2026-06-26 17:06:36 |
| hnrg-20260625_lab.xml | 16593 | 2026-06-26 17:06:36 |
| hnrg-20260625_pre.xml | 10921 | 2026-06-26 17:06:36 |
| MetaLinks.json | 17493 | 2026-06-26 17:06:36 |
| R1.htm | 38103 | 2026-06-26 17:06:36 |
| report.css | 2767 | 2026-06-26 17:06:36 |
| Show.js | 1085 | 2026-06-26 17:06:36 |