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| 0001104657-20-000069-index.html | 2020-06-08 07:07:43 | |
| 0001104657-20-000069.txt | 2020-06-08 07:07:43 | |
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 exhibit992investorpresen008.jpg | 101936 | 2020-06-08 07:07:43 |
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| FilingSummary.xml | 1769 | 2020-06-08 07:07:43 |
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 finalpressreleaseob001.jpg | 222638 | 2020-06-08 07:07:43 |
 finalpressreleaseob002.jpg | 259991 | 2020-06-08 07:07:43 |
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| Financial_Report.xlsx | 5812 | 2020-06-08 07:07:43 |
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| mtrn-20200608.xsd | 4708 | 2020-06-08 07:07:43 |
| mtrn-20200608_cal.xml | 626 | 2020-06-08 07:07:43 |
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| R1.htm | 38841 | 2020-06-08 07:07:43 |
| report.css | 2767 | 2020-06-08 07:07:43 |
| Show.js | 1085 | 2020-06-08 07:07:43 |