Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-23-030121-index-headers.html | 2023-06-27 16:16:08 | |
| 0000950170-23-030121-index.html | 2023-06-27 16:16:08 | |
| 0000950170-23-030121.txt | 2023-06-27 16:16:08 | |
 0000950170-23-030121-xbrl.zip | 627171 | 2023-06-27 16:16:08 |
| FilingSummary.xml | 64766 | 2023-06-27 16:16:08 |
| Financial_Report.xlsx | 156705 | 2023-06-27 16:16:08 |
 img73552198_0.jpg | 424622 | 2023-06-27 16:16:08 |
| mei-20230429.htm | 5579024 | 2023-06-27 16:16:08 |
| mei-20230429.xsd | 86257 | 2023-06-27 16:16:08 |
| mei-20230429_cal.xml | 98392 | 2023-06-27 16:16:08 |
| mei-20230429_def.xml | 363198 | 2023-06-27 16:16:08 |
| mei-20230429_htm.xml | 6209271 | 2023-06-27 16:16:08 |
| mei-20230429_lab.xml | 762949 | 2023-06-27 16:16:08 |
| mei-20230429_pre.xml | 613992 | 2023-06-27 16:16:08 |
| mei-ex21.htm | 69853 | 2023-06-27 16:16:08 |
| mei-ex23.htm | 10091 | 2023-06-27 16:16:08 |
| mei-ex31_1.htm | 19711 | 2023-06-27 16:16:08 |
| mei-ex31_2.htm | 19718 | 2023-06-27 16:16:08 |
| mei-ex32.htm | 16895 | 2023-06-27 16:16:08 |
| MetaLinks.json | 1185679 | 2023-06-27 16:16:08 |
| R1.htm | 70315 | 2023-06-27 16:16:08 |
| R10.htm | 52508 | 2023-06-27 16:16:08 |
| R11.htm | 106876 | 2023-06-27 16:16:08 |
| R12.htm | 25677 | 2023-06-27 16:16:08 |
| R13.htm | 43294 | 2023-06-27 16:16:08 |
| R14.htm | 219279 | 2023-06-27 16:16:08 |
| R15.htm | 98005 | 2023-06-27 16:16:08 |
| R16.htm | 18654 | 2023-06-27 16:16:08 |
| R17.htm | 79210 | 2023-06-27 16:16:08 |
| R18.htm | 360150 | 2023-06-27 16:16:08 |
| R19.htm | 23795 | 2023-06-27 16:16:08 |
| R2.htm | 131823 | 2023-06-27 16:16:08 |
| R20.htm | 461574 | 2023-06-27 16:16:08 |
| R21.htm | 79972 | 2023-06-27 16:16:08 |
| R22.htm | 579910 | 2023-06-27 16:16:08 |
| R23.htm | 107603 | 2023-06-27 16:16:08 |
| R24.htm | 114781 | 2023-06-27 16:16:08 |
| R25.htm | 153759 | 2023-06-27 16:16:08 |
| R26.htm | 24814 | 2023-06-27 16:16:08 |
| R27.htm | 286811 | 2023-06-27 16:16:08 |
| R28.htm | 40423 | 2023-06-27 16:16:08 |
| R29.htm | 102229 | 2023-06-27 16:16:08 |
| R3.htm | 10769 | 2023-06-27 16:16:08 |
| R30.htm | 26055 | 2023-06-27 16:16:08 |
| R31.htm | 37948 | 2023-06-27 16:16:08 |
| R32.htm | 221509 | 2023-06-27 16:16:08 |
| R33.htm | 81168 | 2023-06-27 16:16:08 |
| R34.htm | 63548 | 2023-06-27 16:16:08 |
| R35.htm | 341172 | 2023-06-27 16:16:08 |
| R36.htm | 435825 | 2023-06-27 16:16:08 |
| R37.htm | 78351 | 2023-06-27 16:16:08 |
| R38.htm | 573826 | 2023-06-27 16:16:08 |
| R39.htm | 102384 | 2023-06-27 16:16:08 |
| R4.htm | 78804 | 2023-06-27 16:16:08 |
| R40.htm | 9794 | 2023-06-27 16:16:08 |
| R41.htm | 5585 | 2023-06-27 16:16:08 |
| R42.htm | 12377 | 2023-06-27 16:16:08 |
| R43.htm | 13657 | 2023-06-27 16:16:08 |
| R44.htm | 11705 | 2023-06-27 16:16:08 |
| R45.htm | 6739 | 2023-06-27 16:16:08 |
| R46.htm | 7545 | 2023-06-27 16:16:08 |
| R47.htm | 7826 | 2023-06-27 16:16:08 |
| R48.htm | 5851 | 2023-06-27 16:16:08 |
| R49.htm | 28325 | 2023-06-27 16:16:08 |
| R5.htm | 35255 | 2023-06-27 16:16:08 |
| R50.htm | 7129 | 2023-06-27 16:16:08 |
| R51.htm | 14433 | 2023-06-27 16:16:08 |
| R52.htm | 44444 | 2023-06-27 16:16:08 |
| R53.htm | 27430 | 2023-06-27 16:16:08 |
| R54.htm | 40923 | 2023-06-27 16:16:08 |
| R55.htm | 11361 | 2023-06-27 16:16:08 |
| R56.htm | 17476 | 2023-06-27 16:16:08 |
| R57.htm | 5615 | 2023-06-27 16:16:08 |
| R58.htm | 12096 | 2023-06-27 16:16:08 |
| R59.htm | 18752 | 2023-06-27 16:16:08 |
| R6.htm | 78568 | 2023-06-27 16:16:08 |
| R60.htm | 7368 | 2023-06-27 16:16:08 |
| R61.htm | 16932 | 2023-06-27 16:16:08 |
| R62.htm | 17344 | 2023-06-27 16:16:08 |
| R63.htm | 28286 | 2023-06-27 16:16:08 |
| R64.htm | 17687 | 2023-06-27 16:16:08 |
| R65.htm | 19822 | 2023-06-27 16:16:08 |
| R66.htm | 20150 | 2023-06-27 16:16:08 |
| R67.htm | 9807 | 2023-06-27 16:16:08 |
| R68.htm | 25421 | 2023-06-27 16:16:08 |
| R69.htm | 21477 | 2023-06-27 16:16:08 |
| R7.htm | 94352 | 2023-06-27 16:16:08 |
| R70.htm | 40140 | 2023-06-27 16:16:08 |
| R71.htm | 11839 | 2023-06-27 16:16:08 |
| R72.htm | 20427 | 2023-06-27 16:16:08 |
| R73.htm | 23972 | 2023-06-27 16:16:08 |
| R74.htm | 40329 | 2023-06-27 16:16:08 |
| R75.htm | 49461 | 2023-06-27 16:16:08 |
| R76.htm | 52997 | 2023-06-27 16:16:08 |
| R77.htm | 9598 | 2023-06-27 16:16:08 |
| R78.htm | 26763 | 2023-06-27 16:16:08 |
| R79.htm | 17151 | 2023-06-27 16:16:08 |
| R8.htm | 97087 | 2023-06-27 16:16:08 |
| R80.htm | 11130 | 2023-06-27 16:16:08 |
| R81.htm | 10462 | 2023-06-27 16:16:08 |
| R82.htm | 35379 | 2023-06-27 16:16:08 |
| R83.htm | 14021 | 2023-06-27 16:16:08 |
| R84.htm | 13531 | 2023-06-27 16:16:08 |
| R85.htm | 53000 | 2023-06-27 16:16:08 |
| R86.htm | 35476 | 2023-06-27 16:16:08 |
| R87.htm | 26973 | 2023-06-27 16:16:08 |
| R88.htm | 26822 | 2023-06-27 16:16:08 |
| R89.htm | 42907 | 2023-06-27 16:16:08 |
| R9.htm | 305068 | 2023-06-27 16:16:08 |
| R90.htm | 67203 | 2023-06-27 16:16:08 |
| R91.htm | 28808 | 2023-06-27 16:16:08 |
| R92.htm | 16673 | 2023-06-27 16:16:08 |
| R93.htm | 9188 | 2023-06-27 16:16:08 |
| R94.htm | 11885 | 2023-06-27 16:16:08 |
| R95.htm | 20376 | 2023-06-27 16:16:08 |
| R96.htm | 16765 | 2023-06-27 16:16:08 |
| report.css | 2768 | 2023-06-27 16:16:08 |
| Show.js | 1086 | 2023-06-27 16:16:08 |