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|---|---|---|
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| 0001437749-18-009992-index.html | 2018-05-15 16:04:33 | |
| 0001437749-18-009992.txt | 2018-05-15 16:04:33 | |
 0001437749-18-009992-xbrl.zip | 57964 | 2018-05-15 16:04:33 |
| ex_113642.htm | 14358 | 2018-05-15 16:04:33 |
| ex_113643.htm | 14277 | 2018-05-15 16:04:33 |
| ex_113644.htm | 5155 | 2018-05-15 16:04:33 |
| ex_113651.htm | 77463 | 2018-05-15 16:04:33 |
| ex_113668.htm | 5105 | 2018-05-15 16:04:33 |
| FilingSummary.xml | 18955 | 2018-05-15 16:04:33 |
| Financial_Report.xlsx | 30491 | 2018-05-15 16:04:33 |
| metc-20180331.xml | 237801 | 2018-05-15 16:04:33 |
| metc-20180331.xsd | 26102 | 2018-05-15 16:04:33 |
| metc-20180331_cal.xml | 29953 | 2018-05-15 16:04:33 |
| metc-20180331_def.xml | 193850 | 2018-05-15 16:04:33 |
| metc-20180331_lab.xml | 175120 | 2018-05-15 16:04:33 |
| metc-20180331_pre.xml | 208284 | 2018-05-15 16:04:33 |
| metc20180331_10q.htm | 454299 | 2018-05-15 16:04:33 |
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| R9.htm | 7561 | 2018-05-15 16:04:33 |
| report.css | 2767 | 2018-05-15 16:04:33 |
| Show.js | 1410 | 2018-05-15 16:04:33 |