Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-20-025736-index-headers.html | 2020-12-21 18:10:19 | |
| 0001437749-20-025736-index.html | 2020-12-21 18:10:19 | |
| 0001437749-20-025736.txt | 2020-12-21 18:10:19 | |
 0001437749-20-025736-xbrl.zip | 14073 | 2020-12-21 18:10:19 |
| ex_218347.htm | 4826 | 2020-12-21 18:10:19 |
| FilingSummary.xml | 1816 | 2020-12-21 18:10:19 |
| Financial_Report.xlsx | 5453 | 2020-12-21 18:10:19 |
| hnrg-20201217.xsd | 3702 | 2020-12-21 18:10:19 |
| hnrg-20201217_def.xml | 11588 | 2020-12-21 18:10:19 |
| hnrg-20201217_lab.xml | 15468 | 2020-12-21 18:10:19 |
| hnrg-20201217_pre.xml | 11742 | 2020-12-21 18:10:19 |
| hnrg20201218c_8k.htm | 25318 | 2020-12-21 18:10:19 |
| hnrg20201218c_8k_htm.xml | 2567 | 2020-12-21 18:10:19 |
 logo.jpg | 3779 | 2020-12-21 18:10:19 |
| MetaLinks.json | 19363 | 2020-12-21 18:10:19 |
 prlogo.jpg | 7825 | 2020-12-21 18:10:19 |
| R1.htm | 38872 | 2020-12-21 18:10:19 |
| report.css | 2767 | 2020-12-21 18:10:19 |
| Show.js | 1085 | 2020-12-21 18:10:19 |