Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000891014-13-000017-index-headers.html | 2013-04-26 16:51:25 | |
| 0000891014-13-000017-index.html | 2013-04-26 16:51:25 | |
| 0000891014-13-000017.txt | 2013-04-26 16:51:25 | |
 0000891014-13-000017-xbrl.zip | 95870 | 2013-04-26 16:51:25 |
| ex15q113.htm | 2554 | 2013-04-26 16:51:25 |
| ex31-1.htm | 8518 | 2013-04-26 16:51:25 |
| ex31-2.htm | 9020 | 2013-04-26 16:51:25 |
| ex32.htm | 5544 | 2013-04-26 16:51:25 |
| ex95.htm | 23746 | 2013-04-26 16:51:25 |
| ex99.htm | 30377 | 2013-04-26 16:51:25 |
| FilingSummary.xml | 23361 | 2013-04-26 16:51:25 |
| Financial_Report.xls | 531258 | 2013-04-26 16:51:25 |
| form10q012013.htm | 595519 | 2013-04-26 16:51:25 |
| mtx-20130331.xml | 622100 | 2013-04-26 16:51:25 |
| mtx-20130331.xsd | 35303 | 2013-04-26 16:51:25 |
| mtx-20130331_cal.xml | 39784 | 2013-04-26 16:51:25 |
| mtx-20130331_def.xml | 87045 | 2013-04-26 16:51:25 |
| mtx-20130331_lab.xml | 437990 | 2013-04-26 16:51:25 |
| mtx-20130331_pre.xml | 252842 | 2013-04-26 16:51:25 |
| R1.htm | 37285 | 2013-04-26 16:51:25 |
| R10.htm | 9915 | 2013-04-26 16:51:25 |
| R11.htm | 14122 | 2013-04-26 16:51:25 |
| R12.htm | 21040 | 2013-04-26 16:51:25 |
| R13.htm | 18335 | 2013-04-26 16:51:25 |
| R14.htm | 36060 | 2013-04-26 16:51:25 |
| R15.htm | 28372 | 2013-04-26 16:51:25 |
| R16.htm | 15872 | 2013-04-26 16:51:25 |
| R17.htm | 13718 | 2013-04-26 16:51:25 |
| R18.htm | 14219 | 2013-04-26 16:51:25 |
| R19.htm | 55579 | 2013-04-26 16:51:25 |
| R2.htm | 78528 | 2013-04-26 16:51:25 |
| R20.htm | 47390 | 2013-04-26 16:51:25 |
| R21.htm | 7494 | 2013-04-26 16:51:25 |
| R22.htm | 22185 | 2013-04-26 16:51:25 |
| R23.htm | 12417 | 2013-04-26 16:51:25 |
| R24.htm | 15539 | 2013-04-26 16:51:25 |
| R25.htm | 19525 | 2013-04-26 16:51:25 |
| R26.htm | 30539 | 2013-04-26 16:51:25 |
| R27.htm | 25529 | 2013-04-26 16:51:25 |
| R28.htm | 13259 | 2013-04-26 16:51:25 |
| R29.htm | 13499 | 2013-04-26 16:51:25 |
| R3.htm | 42323 | 2013-04-26 16:51:25 |
| R30.htm | 46099 | 2013-04-26 16:51:25 |
| R31.htm | 56583 | 2013-04-26 16:51:25 |
| R32.htm | 43650 | 2013-04-26 16:51:25 |
| R33.htm | 17432 | 2013-04-26 16:51:25 |
| R34.htm | 19894 | 2013-04-26 16:51:25 |
| R35.htm | 59588 | 2013-04-26 16:51:25 |
| R36.htm | 34759 | 2013-04-26 16:51:25 |
| R37.htm | 44503 | 2013-04-26 16:51:25 |
| R38.htm | 92383 | 2013-04-26 16:51:25 |
| R39.htm | 27035 | 2013-04-26 16:51:25 |
| R4.htm | 123691 | 2013-04-26 16:51:25 |
| R40.htm | 35283 | 2013-04-26 16:51:25 |
| R41.htm | 19773 | 2013-04-26 16:51:25 |
| R42.htm | 64756 | 2013-04-26 16:51:25 |
| R43.htm | 50376 | 2013-04-26 16:51:25 |
| R5.htm | 7246 | 2013-04-26 16:51:25 |
| R6.htm | 101845 | 2013-04-26 16:51:25 |
| R7.htm | 7347 | 2013-04-26 16:51:25 |
| R8.htm | 8322 | 2013-04-26 16:51:25 |
| R9.htm | 25431 | 2013-04-26 16:51:25 |
| report.css | 2721 | 2013-04-26 16:51:25 |
| Show.js | 6423 | 2013-04-26 16:51:25 |