Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001683168-22-007355-index-headers.html | 2022-11-07 16:10:05 | |
| 0001683168-22-007355-index.html | 2022-11-07 16:10:05 | |
| 0001683168-22-007355.txt | 2022-11-07 16:10:05 | |
 0001683168-22-007355-xbrl.zip | 209719 | 2022-11-07 16:10:05 |
| FilingSummary.xml | 41054 | 2022-11-07 16:10:05 |
| Financial_Report.xlsx | 117217 | 2022-11-07 16:10:05 |
| grmm-20220930.xsd | 61974 | 2022-11-07 16:10:05 |
| grmm-20220930_cal.xml | 81256 | 2022-11-07 16:10:05 |
| grmm-20220930_def.xml | 274508 | 2022-11-07 16:10:05 |
| grmm-20220930_lab.xml | 448739 | 2022-11-07 16:10:05 |
| grmm-20220930_pre.xml | 368577 | 2022-11-07 16:10:05 |
| grom_ex3101.htm | 11655 | 2022-11-07 16:10:05 |
| grom_ex3102.htm | 11556 | 2022-11-07 16:10:05 |
| grom_ex3200.htm | 4680 | 2022-11-07 16:10:05 |
| grom_i10q-093022.htm | 1424457 | 2022-11-07 16:10:05 |
| grom_i10q-093022_htm.xml | 1171806 | 2022-11-07 16:10:05 |
| MetaLinks.json | 718241 | 2022-11-07 16:10:05 |
| R1.htm | 55643 | 2022-11-07 16:10:05 |
| R10.htm | 18615 | 2022-11-07 16:10:05 |
| R11.htm | 36446 | 2022-11-07 16:10:05 |
| R12.htm | 6849 | 2022-11-07 16:10:05 |
| R13.htm | 34244 | 2022-11-07 16:10:05 |
| R14.htm | 12205 | 2022-11-07 16:10:05 |
| R15.htm | 18534 | 2022-11-07 16:10:05 |
| R16.htm | 26075 | 2022-11-07 16:10:05 |
| R17.htm | 44372 | 2022-11-07 16:10:05 |
| R18.htm | 9868 | 2022-11-07 16:10:05 |
| R19.htm | 11037 | 2022-11-07 16:10:05 |
| R2.htm | 141141 | 2022-11-07 16:10:05 |
| R20.htm | 67935 | 2022-11-07 16:10:05 |
| R21.htm | 21943 | 2022-11-07 16:10:05 |
| R22.htm | 59862 | 2022-11-07 16:10:05 |
| R23.htm | 9286 | 2022-11-07 16:10:05 |
| R24.htm | 80760 | 2022-11-07 16:10:05 |
| R25.htm | 7864 | 2022-11-07 16:10:05 |
| R26.htm | 6261 | 2022-11-07 16:10:05 |
| R27.htm | 27337 | 2022-11-07 16:10:05 |
| R28.htm | 24328 | 2022-11-07 16:10:05 |
| R29.htm | 31548 | 2022-11-07 16:10:05 |
| R3.htm | 25299 | 2022-11-07 16:10:05 |
| R30.htm | 10377 | 2022-11-07 16:10:05 |
| R31.htm | 14185 | 2022-11-07 16:10:05 |
| R32.htm | 22412 | 2022-11-07 16:10:05 |
| R33.htm | 43426 | 2022-11-07 16:10:05 |
| R34.htm | 8966 | 2022-11-07 16:10:05 |
| R35.htm | 19778 | 2022-11-07 16:10:05 |
| R36.htm | 10920 | 2022-11-07 16:10:05 |
| R37.htm | 34246 | 2022-11-07 16:10:05 |
| R38.htm | 37072 | 2022-11-07 16:10:05 |
| R39.htm | 18903 | 2022-11-07 16:10:05 |
| R4.htm | 108692 | 2022-11-07 16:10:05 |
| R40.htm | 13056 | 2022-11-07 16:10:05 |
| R41.htm | 15511 | 2022-11-07 16:10:05 |
| R42.htm | 8759 | 2022-11-07 16:10:05 |
| R43.htm | 26934 | 2022-11-07 16:10:05 |
| R44.htm | 5049 | 2022-11-07 16:10:05 |
| R45.htm | 12418 | 2022-11-07 16:10:05 |
| R46.htm | 4889 | 2022-11-07 16:10:05 |
| R47.htm | 9040 | 2022-11-07 16:10:05 |
| R48.htm | 19577 | 2022-11-07 16:10:05 |
| R49.htm | 13438 | 2022-11-07 16:10:05 |
| R5.htm | 20939 | 2022-11-07 16:10:05 |
| R50.htm | 14110 | 2022-11-07 16:10:05 |
| R51.htm | 17799 | 2022-11-07 16:10:05 |
| R52.htm | 8975 | 2022-11-07 16:10:05 |
| R53.htm | 34670 | 2022-11-07 16:10:05 |
| R54.htm | 44735 | 2022-11-07 16:10:05 |
| R55.htm | 17697 | 2022-11-07 16:10:05 |
| R56.htm | 7689 | 2022-11-07 16:10:05 |
| R57.htm | 10926 | 2022-11-07 16:10:05 |
| R58.htm | 14383 | 2022-11-07 16:10:05 |
| R59.htm | 26015 | 2022-11-07 16:10:05 |
| R6.htm | 137673 | 2022-11-07 16:10:05 |
| R60.htm | 16990 | 2022-11-07 16:10:05 |
| R61.htm | 156755 | 2022-11-07 16:10:05 |
| R62.htm | 19425 | 2022-11-07 16:10:05 |
| R63.htm | 26148 | 2022-11-07 16:10:05 |
| R64.htm | 23725 | 2022-11-07 16:10:05 |
| R65.htm | 27304 | 2022-11-07 16:10:05 |
| R66.htm | 4382 | 2022-11-07 16:10:05 |
| R67.htm | 18484 | 2022-11-07 16:10:05 |
| R68.htm | 27295 | 2022-11-07 16:10:05 |
| R69.htm | 149471 | 2022-11-07 16:10:05 |
| R7.htm | 123501 | 2022-11-07 16:10:05 |
| R8.htm | 11291 | 2022-11-07 16:10:05 |
| R9.htm | 8104 | 2022-11-07 16:10:05 |
| report.css | 2767 | 2022-11-07 16:10:05 |
| Show.js | 1085 | 2022-11-07 16:10:05 |