Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-22-006779-index-headers.html | 2022-03-21 08:00:17 | |
| 0001437749-22-006779-index.html | 2022-03-21 08:00:17 | |
| 0001437749-22-006779.txt | 2022-03-21 08:00:17 | |
 0001437749-22-006779-xbrl.zip | 13869 | 2022-03-21 08:00:17 |
| ex_348843.htm | 14017 | 2022-03-21 08:00:17 |
| FilingSummary.xml | 1764 | 2022-03-21 08:00:17 |
| Financial_Report.xlsx | 5666 | 2022-03-21 08:00:17 |
 logo.jpg | 9874 | 2022-03-21 08:00:17 |
| MetaLinks.json | 18885 | 2022-03-21 08:00:17 |
| R1.htm | 38958 | 2022-03-21 08:00:17 |
| report.css | 2767 | 2022-03-21 08:00:17 |
| sfe-20220321.xsd | 3593 | 2022-03-21 08:00:17 |
| sfe-20220321_def.xml | 11529 | 2022-03-21 08:00:17 |
| sfe-20220321_lab.xml | 15414 | 2022-03-21 08:00:17 |
| sfe-20220321_pre.xml | 11685 | 2022-03-21 08:00:17 |
| sfe20220318_8k.htm | 25271 | 2022-03-21 08:00:17 |
| sfe20220318_8k_htm.xml | 2564 | 2022-03-21 08:00:17 |
| Show.js | 1085 | 2022-03-21 08:00:17 |