Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001718405-21-000110-index-headers.html | 2021-11-12 06:33:32 | |
| 0001718405-21-000110-index.html | 2021-11-12 06:33:32 | |
| 0001718405-21-000110.txt | 2021-11-12 06:33:32 | |
 0001718405-21-000110-xbrl.zip | 346108 | 2021-11-12 06:33:32 |
| exhibit311-certificationof.htm | 9664 | 2021-11-12 06:33:32 |
| exhibit312-certificationof.htm | 9676 | 2021-11-12 06:33:32 |
| exhibit321-certificationof.htm | 4957 | 2021-11-12 06:33:32 |
| exhibit322-certificationof.htm | 4970 | 2021-11-12 06:33:32 |
| exhibit951-minesafetydiscl.htm | 30019 | 2021-11-12 06:33:32 |
| FilingSummary.xml | 47507 | 2021-11-12 06:33:32 |
| Financial_Report.xlsx | 127474 | 2021-11-12 06:33:32 |
| hymc-20210930.htm | 2006602 | 2021-11-12 06:33:32 |
| hymc-20210930.xsd | 72934 | 2021-11-12 06:33:32 |
| hymc-20210930_cal.xml | 93125 | 2021-11-12 06:33:32 |
| hymc-20210930_def.xml | 323459 | 2021-11-12 06:33:32 |
| hymc-20210930_htm.xml | 1930718 | 2021-11-12 06:33:32 |
| hymc-20210930_lab.xml | 714375 | 2021-11-12 06:33:32 |
| hymc-20210930_pre.xml | 511562 | 2021-11-12 06:33:32 |
| MetaLinks.json | 722827 | 2021-11-12 06:33:32 |
| R1.htm | 63920 | 2021-11-12 06:33:32 |
| R10.htm | 50879 | 2021-11-12 06:33:32 |
| R11.htm | 26705 | 2021-11-12 06:33:32 |
| R12.htm | 25934 | 2021-11-12 06:33:32 |
| R13.htm | 8334 | 2021-11-12 06:33:32 |
| R14.htm | 21269 | 2021-11-12 06:33:32 |
| R15.htm | 61590 | 2021-11-12 06:33:32 |
| R16.htm | 7012 | 2021-11-12 06:33:32 |
| R17.htm | 60972 | 2021-11-12 06:33:32 |
| R18.htm | 12014 | 2021-11-12 06:33:32 |
| R19.htm | 26451 | 2021-11-12 06:33:32 |
| R2.htm | 104322 | 2021-11-12 06:33:32 |
| R20.htm | 15383 | 2021-11-12 06:33:32 |
| R21.htm | 10168 | 2021-11-12 06:33:32 |
| R22.htm | 28108 | 2021-11-12 06:33:32 |
| R23.htm | 71579 | 2021-11-12 06:33:32 |
| R24.htm | 17778 | 2021-11-12 06:33:32 |
| R25.htm | 16148 | 2021-11-12 06:33:32 |
| R26.htm | 13234 | 2021-11-12 06:33:32 |
| R27.htm | 9880 | 2021-11-12 06:33:32 |
| R28.htm | 7056 | 2021-11-12 06:33:32 |
| R29.htm | 56910 | 2021-11-12 06:33:32 |
| R3.htm | 10781 | 2021-11-12 06:33:32 |
| R30.htm | 94659 | 2021-11-12 06:33:32 |
| R31.htm | 48518 | 2021-11-12 06:33:32 |
| R32.htm | 22186 | 2021-11-12 06:33:32 |
| R33.htm | 24040 | 2021-11-12 06:33:32 |
| R34.htm | 8573 | 2021-11-12 06:33:32 |
| R35.htm | 19309 | 2021-11-12 06:33:32 |
| R36.htm | 57961 | 2021-11-12 06:33:32 |
| R37.htm | 54822 | 2021-11-12 06:33:32 |
| R38.htm | 11282 | 2021-11-12 06:33:32 |
| R39.htm | 22322 | 2021-11-12 06:33:32 |
| R4.htm | 86817 | 2021-11-12 06:33:32 |
| R40.htm | 11147 | 2021-11-12 06:33:32 |
| R41.htm | 29039 | 2021-11-12 06:33:32 |
| R42.htm | 67934 | 2021-11-12 06:33:32 |
| R43.htm | 12185 | 2021-11-12 06:33:32 |
| R44.htm | 15616 | 2021-11-12 06:33:32 |
| R45.htm | 84618 | 2021-11-12 06:33:32 |
| R46.htm | 51301 | 2021-11-12 06:33:32 |
| R47.htm | 78955 | 2021-11-12 06:33:32 |
| R48.htm | 49397 | 2021-11-12 06:33:32 |
| R49.htm | 31144 | 2021-11-12 06:33:32 |
| R5.htm | 106734 | 2021-11-12 06:33:32 |
| R50.htm | 25694 | 2021-11-12 06:33:32 |
| R51.htm | 14103 | 2021-11-12 06:33:32 |
| R52.htm | 13761 | 2021-11-12 06:33:32 |
| R53.htm | 7892 | 2021-11-12 06:33:32 |
| R54.htm | 27387 | 2021-11-12 06:33:32 |
| R55.htm | 8600 | 2021-11-12 06:33:32 |
| R56.htm | 42403 | 2021-11-12 06:33:32 |
| R57.htm | 16010 | 2021-11-12 06:33:32 |
| R58.htm | 11599 | 2021-11-12 06:33:32 |
| R59.htm | 34617 | 2021-11-12 06:33:32 |
| R6.htm | 169669 | 2021-11-12 06:33:32 |
| R60.htm | 46080 | 2021-11-12 06:33:32 |
| R61.htm | 31561 | 2021-11-12 06:33:32 |
| R62.htm | 30471 | 2021-11-12 06:33:32 |
| R63.htm | 15858 | 2021-11-12 06:33:32 |
| R64.htm | 68732 | 2021-11-12 06:33:32 |
| R65.htm | 49083 | 2021-11-12 06:33:32 |
| R66.htm | 10012 | 2021-11-12 06:33:32 |
| R67.htm | 14821 | 2021-11-12 06:33:32 |
| R68.htm | 11992 | 2021-11-12 06:33:32 |
| R69.htm | 23128 | 2021-11-12 06:33:32 |
| R7.htm | 101618 | 2021-11-12 06:33:32 |
| R70.htm | 14847 | 2021-11-12 06:33:32 |
| R71.htm | 11512 | 2021-11-12 06:33:32 |
| R72.htm | 36116 | 2021-11-12 06:33:32 |
| R73.htm | 10091 | 2021-11-12 06:33:32 |
| R74.htm | 63087 | 2021-11-12 06:33:32 |
| R75.htm | 12876 | 2021-11-12 06:33:32 |
| R76.htm | 12673 | 2021-11-12 06:33:32 |
| R77.htm | 24033 | 2021-11-12 06:33:32 |
| R78.htm | 44529 | 2021-11-12 06:33:32 |
| R79.htm | 44457 | 2021-11-12 06:33:32 |
| R8.htm | 36402 | 2021-11-12 06:33:32 |
| R80.htm | 18353 | 2021-11-12 06:33:32 |
| R9.htm | 11323 | 2021-11-12 06:33:32 |
| report.css | 2767 | 2021-11-12 06:33:32 |
| Show.js | 1085 | 2021-11-12 06:33:32 |