Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-21-004899-index-headers.html | 2021-03-03 19:01:01 | |
| 0001437749-21-004899-index.html | 2021-03-03 19:01:01 | |
| 0001437749-21-004899.txt | 2021-03-03 19:01:01 | |
 0001437749-21-004899-xbrl.zip | 22130 | 2021-03-03 19:01:01 |
| ex_231593.htm | 183828 | 2021-03-03 19:01:01 |
| FilingSummary.xml | 1757 | 2021-03-03 19:01:01 |
| Financial_Report.xlsx | 5449 | 2021-03-03 19:01:01 |
 logo.jpg | 5620 | 2021-03-03 19:01:01 |
| MetaLinks.json | 19323 | 2021-03-03 19:01:01 |
| R1.htm | 38874 | 2021-03-03 19:01:01 |
| report.css | 2767 | 2021-03-03 19:01:01 |
| sfe-20210303.xsd | 3691 | 2021-03-03 19:01:01 |
| sfe-20210303_def.xml | 11582 | 2021-03-03 19:01:01 |
| sfe-20210303_lab.xml | 15465 | 2021-03-03 19:01:01 |
| sfe-20210303_pre.xml | 11736 | 2021-03-03 19:01:01 |
| sfe20210303_8k.htm | 25402 | 2021-03-03 19:01:01 |
| sfe20210303_8k_htm.xml | 2568 | 2021-03-03 19:01:01 |
| Show.js | 1085 | 2021-03-03 19:01:01 |