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| 0000893538-21-000030-index.html | 2021-04-30 08:55:51 | |
| 0000893538-21-000030.txt | 2021-04-30 08:55:51 | |
 0000893538-21-000030-xbrl.zip | 290468 | 2021-04-30 08:55:51 |
| exhibit311certificationhvo.htm | 7483 | 2021-04-30 08:55:51 |
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| exhibit321906certification.htm | 8116 | 2021-04-30 08:55:51 |
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| R8.htm | 33751 | 2021-04-30 08:55:51 |
| R9.htm | 8194 | 2021-04-30 08:55:51 |
| report.css | 2767 | 2021-04-30 08:55:51 |
| Show.js | 1085 | 2021-04-30 08:55:51 |
| sm-20210331.htm | 1644256 | 2021-04-30 08:55:51 |
| sm-20210331.xsd | 40893 | 2021-04-30 08:55:51 |
| sm-20210331_cal.xml | 63122 | 2021-04-30 08:55:51 |
| sm-20210331_def.xml | 183001 | 2021-04-30 08:55:51 |
 sm-20210331_g1.jpg | 88808 | 2021-04-30 08:55:51 |
| sm-20210331_htm.xml | 1187709 | 2021-04-30 08:55:51 |
| sm-20210331_lab.xml | 500784 | 2021-04-30 08:55:51 |
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