Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-20-025655-index-headers.html | 2020-12-21 08:00:21 | |
| 0001437749-20-025655-index.html | 2020-12-21 08:00:21 | |
| 0001437749-20-025655.txt | 2020-12-21 08:00:21 | |
 0001437749-20-025655-xbrl.zip | 11972 | 2020-12-21 08:00:21 |
| ex_218479.htm | 6286 | 2020-12-21 08:00:21 |
| FilingSummary.xml | 1757 | 2020-12-21 08:00:21 |
| Financial_Report.xlsx | 5443 | 2020-12-21 08:00:21 |
 logo.jpg | 5620 | 2020-12-21 08:00:21 |
| MetaLinks.json | 19323 | 2020-12-21 08:00:21 |
| R1.htm | 38873 | 2020-12-21 08:00:21 |
| report.css | 2767 | 2020-12-21 08:00:21 |
| sfe-20201221.xsd | 3694 | 2020-12-21 08:00:21 |
| sfe-20201221_def.xml | 11585 | 2020-12-21 08:00:21 |
| sfe-20201221_lab.xml | 15468 | 2020-12-21 08:00:21 |
| sfe-20201221_pre.xml | 11739 | 2020-12-21 08:00:21 |
| sfe20201220_8k.htm | 25035 | 2020-12-21 08:00:21 |
| sfe20201220_8k_htm.xml | 2568 | 2020-12-21 08:00:21 |
| Show.js | 1085 | 2020-12-21 08:00:21 |