Parent Directory| Name | Size | Last Modified |
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| 0001104659-23-082387-index.html | 2023-07-19 17:00:01 | |
| 0001104659-23-082387.txt | 2023-07-19 17:00:01 | |
 0001104659-23-082387-xbrl.zip | 35037 | 2023-07-19 17:00:01 |
| FilingSummary.xml | 1744 | 2023-07-19 17:00:01 |
| Financial_Report.xlsx | 5686 | 2023-07-19 17:00:01 |
| hnrg-20230719.xsd | 3033 | 2023-07-19 17:00:01 |
| hnrg-20230719_lab.xml | 34240 | 2023-07-19 17:00:01 |
| hnrg-20230719_pre.xml | 22371 | 2023-07-19 17:00:01 |
 image_001.jpg | 1829 | 2023-07-19 17:00:01 |
| MetaLinks.json | 39548 | 2023-07-19 17:00:01 |
| R1.htm | 38084 | 2023-07-19 17:00:01 |
| report.css | 2767 | 2023-07-19 17:00:01 |
| Show.js | 1085 | 2023-07-19 17:00:01 |
| tm2321010d2_8k.htm | 25032 | 2023-07-19 17:00:01 |
| tm2321010d2_8k_htm.xml | 3210 | 2023-07-19 17:00:01 |
| tm2321010d2_ex99-1.htm | 169567 | 2023-07-19 17:00:01 |
| tm2321010d2_ex99-2.htm | 95886 | 2023-07-19 17:00:01 |