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| 0000788965-14-000013-index.html | 2014-05-02 16:38:44 | |
| 0000788965-14-000013.txt | 2014-05-02 16:38:44 | |
 0000788965-14-000013-xbrl.zip | 51329 | 2014-05-02 16:38:44 |
| exh15.htm | 3529 | 2014-05-02 16:38:44 |
| exh31.htm | 13283 | 2014-05-02 16:38:44 |
| exh31wab.htm | 13343 | 2014-05-02 16:38:44 |
| exh32.htm | 7735 | 2014-05-02 16:38:44 |
| exh95.htm | 43564 | 2014-05-02 16:38:44 |
| FilingSummary.xml | 14574 | 2014-05-02 16:38:44 |
| Financial_Report.xls | 233494 | 2014-05-02 16:38:44 |
| Financial_Report.xlsx | 50548 | 2014-05-02 16:38:44 |
 form10k20110.jpg | 3930 | 2014-05-02 16:38:44 |
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| hnrg-20140331.xml | 248120 | 2014-05-02 16:38:44 |
| hnrg-20140331.xsd | 34497 | 2014-05-02 16:38:44 |
| hnrg-20140331_cal.xml | 31896 | 2014-05-02 16:38:44 |
| hnrg-20140331_def.xml | 103187 | 2014-05-02 16:38:44 |
| hnrg-20140331_lab.xml | 190212 | 2014-05-02 16:38:44 |
| hnrg-20140331_pre.xml | 108373 | 2014-05-02 16:38:44 |
| march2014q.htm | 526745 | 2014-05-02 16:38:44 |
| R1.htm | 37263 | 2014-05-02 16:38:44 |
| R10.htm | 27677 | 2014-05-02 16:38:44 |
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| R14.htm | 25253 | 2014-05-02 16:38:44 |
| R15.htm | 28060 | 2014-05-02 16:38:44 |
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| R9.htm | 25441 | 2014-05-02 16:38:44 |
| report.css | 2740 | 2014-05-02 16:38:44 |
| Show.js | 1410 | 2014-05-02 16:38:44 |