Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001718405-21-000034-index-headers.html | 2021-04-09 16:29:37 | |
| 0001718405-21-000034-index.html | 2021-04-09 16:29:37 | |
| 0001718405-21-000034.txt | 2021-04-09 16:29:37 | |
 0001718405-21-000034-xbrl.zip | 117675 | 2021-04-09 16:29:37 |
| exhibit231-consentofplante.htm | 4722 | 2021-04-09 16:29:37 |
| exhibit311-certificationof.htm | 9721 | 2021-04-09 16:29:37 |
| exhibit312-certificationof.htm | 9733 | 2021-04-09 16:29:37 |
| exhibit321-certificationof.htm | 4975 | 2021-04-09 16:29:37 |
| exhibit322-certificationof.htm | 4964 | 2021-04-09 16:29:37 |
| FilingSummary.xml | 2053 | 2021-04-09 16:29:37 |
| Financial_Report.xlsx | 6564 | 2021-04-09 16:29:37 |
| hymc-20201231.htm | 859871 | 2021-04-09 16:29:37 |
| hymc-20201231.xsd | 3514 | 2021-04-09 16:29:37 |
| hymc-20201231_cal.xml | 720 | 2021-04-09 16:29:37 |
| hymc-20201231_def.xml | 23200 | 2021-04-09 16:29:37 |
 hymc-20201231_g1.jpg | 45767 | 2021-04-09 16:29:37 |
| hymc-20201231_htm.xml | 24357 | 2021-04-09 16:29:37 |
| hymc-20201231_lab.xml | 46940 | 2021-04-09 16:29:37 |
| hymc-20201231_pre.xml | 24734 | 2021-04-09 16:29:37 |
| MetaLinks.json | 31562 | 2021-04-09 16:29:37 |
| R1.htm | 75720 | 2021-04-09 16:29:37 |
| report.css | 2767 | 2021-04-09 16:29:37 |
| Show.js | 1085 | 2021-04-09 16:29:37 |