Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-23-023041-index-headers.html | 2023-08-10 16:12:15 | |
| 0001437749-23-023041-index.html | 2023-08-10 16:12:15 | |
| 0001437749-23-023041.txt | 2023-08-10 16:12:15 | |
 0001437749-23-023041-xbrl.zip | 20799 | 2023-08-10 16:12:15 |
| ex_558416.htm | 154236 | 2023-08-10 16:12:15 |
| FilingSummary.xml | 1762 | 2023-08-10 16:12:15 |
| Financial_Report.xlsx | 5691 | 2023-08-10 16:12:15 |
 logo.jpg | 9874 | 2023-08-10 16:12:15 |
| MetaLinks.json | 19294 | 2023-08-10 16:12:15 |
| R1.htm | 38353 | 2023-08-10 16:12:15 |
| report.css | 2767 | 2023-08-10 16:12:15 |
| sfe-20230810.xsd | 3401 | 2023-08-10 16:12:15 |
| sfe-20230810_def.xml | 11421 | 2023-08-10 16:12:15 |
| sfe-20230810_lab.xml | 15310 | 2023-08-10 16:12:15 |
| sfe-20230810_pre.xml | 11581 | 2023-08-10 16:12:15 |
| sfe20230810_8k.htm | 24129 | 2023-08-10 16:12:15 |
| sfe20230810_8k_htm.xml | 2564 | 2023-08-10 16:12:15 |
| Show.js | 1085 | 2023-08-10 16:12:15 |