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| 0001437749-22-006038-index.html | 2022-03-11 16:48:51 | |
| 0001437749-22-006038.txt | 2022-03-11 16:48:51 | |
 0001437749-22-006038-xbrl.zip | 200630 | 2022-03-11 16:48:51 |
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| ex_311221.htm | 9919 | 2022-03-11 16:48:51 |
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| ex_337363.htm | 2406 | 2022-03-11 16:48:51 |
| FilingSummary.xml | 38634 | 2022-03-11 16:48:51 |
| Financial_Report.xlsx | 71696 | 2022-03-11 16:48:51 |
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| R1.htm | 69798 | 2022-03-11 16:48:51 |
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| report.css | 2767 | 2022-03-11 16:48:51 |
| sfe-20211231.xsd | 64258 | 2022-03-11 16:48:51 |
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| Show.js | 1085 | 2022-03-11 16:48:51 |