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| 0001437749-22-016837-index.html | 2022-07-07 18:07:41 | |
| 0001437749-22-016837.txt | 2022-07-07 18:07:41 | |
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| ex_383371.htm | 13158 | 2022-07-07 18:07:41 |
| FilingSummary.xml | 1820 | 2022-07-07 18:07:41 |
| Financial_Report.xlsx | 5699 | 2022-07-07 18:07:41 |
| hnrg-20220707.xsd | 3600 | 2022-07-07 18:07:41 |
| hnrg-20220707_def.xml | 11531 | 2022-07-07 18:07:41 |
| hnrg-20220707_lab.xml | 15413 | 2022-07-07 18:07:41 |
| hnrg-20220707_pre.xml | 11687 | 2022-07-07 18:07:41 |
| hnrg20220602_8k.htm | 27064 | 2022-07-07 18:07:41 |
| hnrg20220602_8k_htm.xml | 2563 | 2022-07-07 18:07:41 |
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| MetaLinks.json | 18921 | 2022-07-07 18:07:41 |
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| R1.htm | 38802 | 2022-07-07 18:07:41 |
| report.css | 2767 | 2022-07-07 18:07:41 |
| Show.js | 1085 | 2022-07-07 18:07:41 |