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| 0001437749-18-019865-index.html | 2018-11-07 16:54:12 | |
| 0001437749-18-019865.txt | 2018-11-07 16:54:12 | |
 0001437749-18-019865-xbrl.zip | 73918 | 2018-11-07 16:54:12 |
| ex_127396.htm | 14611 | 2018-11-07 16:54:12 |
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| ex_127400.htm | 129554 | 2018-11-07 16:54:12 |
| FilingSummary.xml | 22182 | 2018-11-07 16:54:12 |
| Financial_Report.xlsx | 36343 | 2018-11-07 16:54:12 |
| metc-20180930.xml | 391647 | 2018-11-07 16:54:12 |
| metc-20180930.xsd | 31144 | 2018-11-07 16:54:12 |
| metc-20180930_cal.xml | 32795 | 2018-11-07 16:54:12 |
| metc-20180930_def.xml | 245856 | 2018-11-07 16:54:12 |
| metc-20180930_lab.xml | 200548 | 2018-11-07 16:54:12 |
| metc-20180930_pre.xml | 259799 | 2018-11-07 16:54:12 |
| metc20180930_10q.htm | 705015 | 2018-11-07 16:54:12 |
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| R8.htm | 20203 | 2018-11-07 16:54:12 |
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| report.css | 2767 | 2018-11-07 16:54:12 |
| Show.js | 1085 | 2018-11-07 16:54:12 |