Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-22-005699-index-headers.html | 2022-03-09 16:40:37 | |
| 0001437749-22-005699-index.html | 2022-03-09 16:40:37 | |
| 0001437749-22-005699.txt | 2022-03-09 16:40:37 | |
 0001437749-22-005699-xbrl.zip | 22172 | 2022-03-09 16:40:37 |
| ex_345106.htm | 169621 | 2022-03-09 16:40:37 |
| FilingSummary.xml | 1767 | 2022-03-09 16:40:37 |
| Financial_Report.xlsx | 5667 | 2022-03-09 16:40:37 |
 logo.jpg | 9874 | 2022-03-09 16:40:37 |
| MetaLinks.json | 18886 | 2022-03-09 16:40:37 |
| R1.htm | 38829 | 2022-03-09 16:40:37 |
| report.css | 2767 | 2022-03-09 16:40:37 |
| sfe-20220309.xsd | 3592 | 2022-03-09 16:40:37 |
| sfe-20220309_def.xml | 11528 | 2022-03-09 16:40:37 |
| sfe-20220309_lab.xml | 15413 | 2022-03-09 16:40:37 |
| sfe-20220309_pre.xml | 11684 | 2022-03-09 16:40:37 |
| sfe20220309_8k.htm | 23272 | 2022-03-09 16:40:37 |
| sfe20220309_8k_htm.xml | 2564 | 2022-03-09 16:40:37 |
| Show.js | 1085 | 2022-03-09 16:40:37 |