Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-21-006370-index-headers.html | 2021-03-17 19:14:04 | |
| 0001437749-21-006370-index.html | 2021-03-17 19:14:04 | |
| 0001437749-21-006370.txt | 2021-03-17 19:14:04 | |
 0001437749-21-006370-xbrl.zip | 11350 | 2021-03-17 19:14:04 |
| ex_234805.htm | 2985 | 2021-03-17 19:14:04 |
| FilingSummary.xml | 1757 | 2021-03-17 19:14:04 |
| Financial_Report.xlsx | 5448 | 2021-03-17 19:14:04 |
| MetaLinks.json | 19323 | 2021-03-17 19:14:04 |
| R1.htm | 38873 | 2021-03-17 19:14:04 |
| report.css | 2767 | 2021-03-17 19:14:04 |
| sfe-20210312.xsd | 3692 | 2021-03-17 19:14:04 |
| sfe-20210312_def.xml | 11583 | 2021-03-17 19:14:04 |
| sfe-20210312_lab.xml | 15466 | 2021-03-17 19:14:04 |
| sfe-20210312_pre.xml | 11737 | 2021-03-17 19:14:04 |
| sfe20210317_8k.htm | 28328 | 2021-03-17 19:14:04 |
| sfe20210317_8k_htm.xml | 2568 | 2021-03-17 19:14:04 |
| Show.js | 1085 | 2021-03-17 19:14:04 |