Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-21-008751-index-headers.html | 2021-04-12 18:28:54 | |
| 0001437749-21-008751-index.html | 2021-04-12 18:28:54 | |
| 0001437749-21-008751.txt | 2021-04-12 18:28:54 | |
 0001437749-21-008751-xbrl.zip | 13218 | 2021-04-12 18:28:54 |
| ex_240580.htm | 12052 | 2021-04-12 18:28:54 |
| FilingSummary.xml | 1757 | 2021-04-12 18:28:54 |
| Financial_Report.xlsx | 5681 | 2021-04-12 18:28:54 |
| MetaLinks.json | 19848 | 2021-04-12 18:28:54 |
| R1.htm | 40408 | 2021-04-12 18:28:54 |
| report.css | 2767 | 2021-04-12 18:28:54 |
| sfe-20210412.xsd | 3692 | 2021-04-12 18:28:54 |
| sfe-20210412_def.xml | 11972 | 2021-04-12 18:28:54 |
| sfe-20210412_lab.xml | 16020 | 2021-04-12 18:28:54 |
| sfe-20210412_pre.xml | 12181 | 2021-04-12 18:28:54 |
| sfe20210412_8k.htm | 26710 | 2021-04-12 18:28:54 |
| sfe20210412_8k_htm.xml | 2655 | 2021-04-12 18:28:54 |
| Show.js | 1085 | 2021-04-12 18:28:54 |