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|---|---|---|
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| 0001410578-22-000760-index.html | 2022-03-31 16:01:50 | |
| 0001410578-22-000760.txt | 2022-03-31 16:01:50 | |
 0001410578-22-000760-xbrl.zip | 246613 | 2022-03-31 16:01:50 |
| FilingSummary.xml | 35382 | 2022-03-31 16:01:50 |
| Financial_Report.xlsx | 85588 | 2022-03-31 16:01:50 |
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| R1.htm | 67013 | 2022-03-31 16:01:50 |
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| R8.htm | 21301 | 2022-03-31 16:01:50 |
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| report.css | 2767 | 2022-03-31 16:01:50 |
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 svt-20211231x10k002.jpg | 5248 | 2022-03-31 16:01:50 |
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 svt-20211231xex23d1001.jpg | 49759 | 2022-03-31 16:01:50 |
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| svt-20211231xex4d4.htm | 17468 | 2022-03-31 16:01:50 |
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