Parent Directory| Name | Size | Last Modified |
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| 0001104657-22-000015-index.html | 2022-02-17 07:19:38 | |
| 0001104657-22-000015.txt | 2022-02-17 07:19:38 | |
 0001104657-22-000015-xbrl.zip | 28459 | 2022-02-17 07:19:38 |
 dateforprv3.jpg | 8051 | 2022-02-17 07:19:38 |
| FilingSummary.xml | 1650 | 2022-02-17 07:19:38 |
| Financial_Report.xlsx | 5652 | 2022-02-17 07:19:38 |
 image_2.jpg | 52051 | 2022-02-17 07:19:38 |
 image_3.jpg | 535 | 2022-02-17 07:19:38 |
| MetaLinks.json | 16523 | 2022-02-17 07:19:38 |
| mtrn-20220217.htm | 41974 | 2022-02-17 07:19:38 |
| mtrn-20220217.xsd | 1908 | 2022-02-17 07:19:38 |
| mtrn-20220217_htm.xml | 10172 | 2022-02-17 07:19:38 |
| mtrn-20220217_lab.xml | 23924 | 2022-02-17 07:19:38 |
| mtrn-20220217_pre.xml | 12600 | 2022-02-17 07:19:38 |
| q42021pressrelease.htm | 379467 | 2022-02-17 07:19:38 |
| R1.htm | 38548 | 2022-02-17 07:19:38 |
| report.css | 2767 | 2022-02-17 07:19:38 |
| Show.js | 1085 | 2022-02-17 07:19:38 |