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|---|---|---|
 0001104659-26-025949-index-headers.html | 2026-03-10 17:27:11 | |
| 0001104659-26-025949-index.html | 2026-03-10 17:27:11 | |
| 0001104659-26-025949.txt | 2026-03-10 17:27:11 | |
 0001104659-26-025949-xbrl.zip | 227113 | 2026-03-10 17:27:11 |
| FilingSummary.xml | 1832 | 2026-03-10 17:27:11 |
| hnrg-20260305.xsd | 3530 | 2026-03-10 17:27:11 |
| hnrg-20260305x8k.htm | 42566 | 2026-03-10 17:27:11 |
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| hnrg-20260305x8k_htm.xml | 4608 | 2026-03-10 17:27:11 |
| hnrg-20260305xex10d1.htm | 1637220 | 2026-03-10 17:27:11 |
| hnrg-20260305xex99d1.htm | 9770 | 2026-03-10 17:27:11 |
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| hnrg-20260305_def.xml | 2862 | 2026-03-10 17:27:11 |
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| R1.htm | 38105 | 2026-03-10 17:27:11 |
| report.css | 2767 | 2026-03-10 17:27:11 |
| Show.js | 1085 | 2026-03-10 17:27:11 |