Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-22-020135-index-headers.html | 2022-08-11 16:16:33 | |
| 0001437749-22-020135-index.html | 2022-08-11 16:16:33 | |
| 0001437749-22-020135.txt | 2022-08-11 16:16:33 | |
 0001437749-22-020135-xbrl.zip | 21102 | 2022-08-11 16:16:33 |
| ex_380091.htm | 156996 | 2022-08-11 16:16:33 |
| FilingSummary.xml | 1764 | 2022-08-11 16:16:33 |
| Financial_Report.xlsx | 5689 | 2022-08-11 16:16:33 |
 logo1.jpg | 564172 | 2022-08-11 16:16:33 |
| MetaLinks.json | 18885 | 2022-08-11 16:16:33 |
| R1.htm | 38803 | 2022-08-11 16:16:33 |
| report.css | 2767 | 2022-08-11 16:16:33 |
| sfe-20220811.xsd | 3593 | 2022-08-11 16:16:33 |
| sfe-20220811_def.xml | 11529 | 2022-08-11 16:16:33 |
| sfe-20220811_lab.xml | 15414 | 2022-08-11 16:16:33 |
| sfe-20220811_pre.xml | 11685 | 2022-08-11 16:16:33 |
| sfe20220525_8k.htm | 23794 | 2022-08-11 16:16:33 |
| sfe20220525_8k_htm.xml | 2564 | 2022-08-11 16:16:33 |
| Show.js | 1085 | 2022-08-11 16:16:33 |