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| 0001144204-17-041245-index.html | 2017-08-08 16:42:23 | |
| 0001144204-17-041245.txt | 2017-08-08 16:42:23 | |
 0001144204-17-041245-xbrl.zip | 61458 | 2017-08-08 16:42:23 |
| FilingSummary.xml | 19386 | 2017-08-08 16:42:23 |
| Financial_Report.xlsx | 35124 | 2017-08-08 16:42:23 |
| hnrg-20170630.xml | 401591 | 2017-08-08 16:42:23 |
| hnrg-20170630.xsd | 27169 | 2017-08-08 16:42:23 |
| hnrg-20170630_cal.xml | 38449 | 2017-08-08 16:42:23 |
| hnrg-20170630_def.xml | 102633 | 2017-08-08 16:42:23 |
| hnrg-20170630_lab.xml | 200683 | 2017-08-08 16:42:23 |
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| report.css | 2767 | 2017-08-08 16:42:23 |
| Show.js | 1410 | 2017-08-08 16:42:23 |
| v471127_10q.htm | 384234 | 2017-08-08 16:42:23 |
| v471127_ex10.htm | 74374 | 2017-08-08 16:42:23 |
| v471127_ex15.htm | 3695 | 2017-08-08 16:42:23 |
| v471127_ex31-1.htm | 11663 | 2017-08-08 16:42:23 |
| v471127_ex31-2.htm | 11910 | 2017-08-08 16:42:23 |
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| v471127_ex95.htm | 125963 | 2017-08-08 16:42:23 |