Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000065270-16-000055-index-headers.html | 2016-06-23 07:24:04 | |
| 0000065270-16-000055-index.html | 2016-06-23 07:24:04 | |
| 0000065270-16-000055.txt | 2016-06-23 07:24:04 | |
 0000065270-16-000055-xbrl.zip | 261922 | 2016-06-23 07:24:04 |
| exhibit21-043016.htm | 19814 | 2016-06-23 07:24:04 |
| exhibit23-043016.htm | 6770 | 2016-06-23 07:24:04 |
| exhibit311-10xk043016.htm | 15002 | 2016-06-23 07:24:04 |
| exhibit312-10xk043016.htm | 15006 | 2016-06-23 07:24:04 |
| exhibit32-10xk043016.htm | 6450 | 2016-06-23 07:24:04 |
| FilingSummary.xml | 45803 | 2016-06-23 07:24:04 |
| Financial_Report.xlsx | 101827 | 2016-06-23 07:24:04 |
| mei-20160430.xml | 2505699 | 2016-06-23 07:24:04 |
| mei-20160430.xsd | 59978 | 2016-06-23 07:24:04 |
| mei-20160430_cal.xml | 112054 | 2016-06-23 07:24:04 |
| mei-20160430_def.xml | 302180 | 2016-06-23 07:24:04 |
| mei-20160430_lab.xml | 820877 | 2016-06-23 07:24:04 |
| mei-20160430_pre.xml | 507489 | 2016-06-23 07:24:04 |
| mei-4302016x10k.htm | 2477956 | 2016-06-23 07:24:04 |
| R1.htm | 28407 | 2016-06-23 07:24:04 |
| R10.htm | 91172 | 2016-06-23 07:24:04 |
| R11.htm | 265476 | 2016-06-23 07:24:04 |
| R12.htm | 5634 | 2016-06-23 07:24:04 |
| R13.htm | 159934 | 2016-06-23 07:24:04 |
| R14.htm | 35276 | 2016-06-23 07:24:04 |
| R15.htm | 10075 | 2016-06-23 07:24:04 |
| R16.htm | 8322 | 2016-06-23 07:24:04 |
| R17.htm | 9493 | 2016-06-23 07:24:04 |
| R18.htm | 8465 | 2016-06-23 07:24:04 |
| R19.htm | 245974 | 2016-06-23 07:24:04 |
| R2.htm | 112741 | 2016-06-23 07:24:04 |
| R20.htm | 12672 | 2016-06-23 07:24:04 |
| R21.htm | 6645 | 2016-06-23 07:24:04 |
| R22.htm | 54825 | 2016-06-23 07:24:04 |
| R23.htm | 67191 | 2016-06-23 07:24:04 |
| R24.htm | 75672 | 2016-06-23 07:24:04 |
| R25.htm | 77038 | 2016-06-23 07:24:04 |
| R26.htm | 254469 | 2016-06-23 07:24:04 |
| R27.htm | 159358 | 2016-06-23 07:24:04 |
| R28.htm | 32171 | 2016-06-23 07:24:04 |
| R29.htm | 239543 | 2016-06-23 07:24:04 |
| R3.htm | 16130 | 2016-06-23 07:24:04 |
| R30.htm | 10282 | 2016-06-23 07:24:04 |
| R31.htm | 51388 | 2016-06-23 07:24:04 |
| R32.htm | 8456 | 2016-06-23 07:24:04 |
| R33.htm | 11856 | 2016-06-23 07:24:04 |
| R34.htm | 5151 | 2016-06-23 07:24:04 |
| R35.htm | 5577 | 2016-06-23 07:24:04 |
| R36.htm | 12532 | 2016-06-23 07:24:04 |
| R37.htm | 14875 | 2016-06-23 07:24:04 |
| R38.htm | 33023 | 2016-06-23 07:24:04 |
| R39.htm | 8209 | 2016-06-23 07:24:04 |
| R4.htm | 49654 | 2016-06-23 07:24:04 |
| R40.htm | 16955 | 2016-06-23 07:24:04 |
| R41.htm | 25318 | 2016-06-23 07:24:04 |
| R42.htm | 13381 | 2016-06-23 07:24:04 |
| R43.htm | 6570 | 2016-06-23 07:24:04 |
| R44.htm | 170752 | 2016-06-23 07:24:04 |
| R45.htm | 9024 | 2016-06-23 07:24:04 |
| R46.htm | 33305 | 2016-06-23 07:24:04 |
| R47.htm | 24301 | 2016-06-23 07:24:04 |
| R48.htm | 35669 | 2016-06-23 07:24:04 |
| R49.htm | 51561 | 2016-06-23 07:24:04 |
| R5.htm | 18464 | 2016-06-23 07:24:04 |
| R50.htm | 21339 | 2016-06-23 07:24:04 |
| R51.htm | 24243 | 2016-06-23 07:24:04 |
| R52.htm | 6244 | 2016-06-23 07:24:04 |
| R53.htm | 56965 | 2016-06-23 07:24:04 |
| R54.htm | 48471 | 2016-06-23 07:24:04 |
| R55.htm | 9526 | 2016-06-23 07:24:04 |
| R56.htm | 25004 | 2016-06-23 07:24:04 |
| R57.htm | 54851 | 2016-06-23 07:24:04 |
| R58.htm | 13446 | 2016-06-23 07:24:04 |
| R59.htm | 24860 | 2016-06-23 07:24:04 |
| R6.htm | 60662 | 2016-06-23 07:24:04 |
| R60.htm | 10177 | 2016-06-23 07:24:04 |
| R61.htm | 11778 | 2016-06-23 07:24:04 |
| R62.htm | 23313 | 2016-06-23 07:24:04 |
| R63.htm | 25649 | 2016-06-23 07:24:04 |
| R64.htm | 9559 | 2016-06-23 07:24:04 |
| R65.htm | 89693 | 2016-06-23 07:24:04 |
| R66.htm | 28116 | 2016-06-23 07:24:04 |
| R67.htm | 5384 | 2016-06-23 07:24:04 |
| R68.htm | 14761 | 2016-06-23 07:24:04 |
| R69.htm | 7864 | 2016-06-23 07:24:04 |
| R7.htm | 74628 | 2016-06-23 07:24:04 |
| R70.htm | 19293 | 2016-06-23 07:24:04 |
| R71.htm | 6499 | 2016-06-23 07:24:04 |
| R72.htm | 19533 | 2016-06-23 07:24:04 |
| R73.htm | 17555 | 2016-06-23 07:24:04 |
| R8.htm | 34300 | 2016-06-23 07:24:04 |
| R9.htm | 7910 | 2016-06-23 07:24:04 |
| report.css | 2767 | 2016-06-23 07:24:04 |
| Show.js | 1410 | 2016-06-23 07:24:04 |