Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001140361-21-011666-index-headers.html | 2021-04-05 17:28:40 | |
| 0001140361-21-011666-index.html | 2021-04-05 17:28:40 | |
| 0001140361-21-011666.txt | 2021-04-05 17:28:40 | |
 0001140361-21-011666-xbrl.zip | 101738 | 2021-04-05 17:28:40 |
| brhc10022474_10k.htm | 662336 | 2021-04-05 17:28:40 |
| brhc10022474_ex21-1.htm | 2943 | 2021-04-05 17:28:40 |
| brhc10022474_ex31-1.htm | 12645 | 2021-04-05 17:28:40 |
| brhc10022474_ex31-2.htm | 12644 | 2021-04-05 17:28:40 |
| brhc10022474_ex32-1.htm | 5806 | 2021-04-05 17:28:40 |
| brhc10022474_ex32-2.htm | 5839 | 2021-04-05 17:28:40 |
| FilingSummary.xml | 21712 | 2021-04-05 17:28:40 |
| Financial_Report.xlsx | 57192 | 2021-04-05 17:28:40 |
| mghl-20201231.xml | 426227 | 2021-04-05 17:28:40 |
| mghl-20201231.xsd | 30805 | 2021-04-05 17:28:40 |
| mghl-20201231_cal.xml | 48939 | 2021-04-05 17:28:40 |
| mghl-20201231_def.xml | 107361 | 2021-04-05 17:28:40 |
| mghl-20201231_lab.xml | 405678 | 2021-04-05 17:28:40 |
| mghl-20201231_pre.xml | 242419 | 2021-04-05 17:28:40 |
| R1.htm | 36091 | 2021-04-05 17:28:40 |
| R10.htm | 26419 | 2021-04-05 17:28:40 |
| R11.htm | 9636 | 2021-04-05 17:28:40 |
| R12.htm | 25325 | 2021-04-05 17:28:40 |
| R13.htm | 8776 | 2021-04-05 17:28:40 |
| R14.htm | 53381 | 2021-04-05 17:28:40 |
| R15.htm | 21765 | 2021-04-05 17:28:40 |
| R16.htm | 7019 | 2021-04-05 17:28:40 |
| R17.htm | 6749 | 2021-04-05 17:28:40 |
| R18.htm | 5522 | 2021-04-05 17:28:40 |
| R19.htm | 5343 | 2021-04-05 17:28:40 |
| R2.htm | 69800 | 2021-04-05 17:28:40 |
| R20.htm | 9541 | 2021-04-05 17:28:40 |
| R21.htm | 57382 | 2021-04-05 17:28:40 |
| R22.htm | 15688 | 2021-04-05 17:28:40 |
| R23.htm | 23723 | 2021-04-05 17:28:40 |
| R24.htm | 50372 | 2021-04-05 17:28:40 |
| R25.htm | 20855 | 2021-04-05 17:28:40 |
| R26.htm | 24735 | 2021-04-05 17:28:40 |
| R27.htm | 18294 | 2021-04-05 17:28:40 |
| R28.htm | 22749 | 2021-04-05 17:28:40 |
| R29.htm | 34090 | 2021-04-05 17:28:40 |
| R3.htm | 62281 | 2021-04-05 17:28:40 |
| R30.htm | 18185 | 2021-04-05 17:28:40 |
| R31.htm | 23756 | 2021-04-05 17:28:40 |
| R32.htm | 4241 | 2021-04-05 17:28:40 |
| R33.htm | 67950 | 2021-04-05 17:28:40 |
| R34.htm | 32806 | 2021-04-05 17:28:40 |
| R35.htm | 27582 | 2021-04-05 17:28:40 |
| R36.htm | 6873 | 2021-04-05 17:28:40 |
| R4.htm | 16267 | 2021-04-05 17:28:40 |
| R5.htm | 29666 | 2021-04-05 17:28:40 |
| R6.htm | 81661 | 2021-04-05 17:28:40 |
| R7.htm | 8788 | 2021-04-05 17:28:40 |
| R8.htm | 10625 | 2021-04-05 17:28:40 |
| R9.htm | 21764 | 2021-04-05 17:28:40 |
| report.css | 2767 | 2021-04-05 17:28:40 |
| Show.js | 1085 | 2021-04-05 17:28:40 |