Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-20-015381-index-headers.html | 2020-04-06 07:03:02 | |
| 0001564590-20-015381-index.html | 2020-04-06 07:03:02 | |
| 0001564590-20-015381.txt | 2020-04-06 07:03:02 | |
 0001564590-20-015381-xbrl.zip | 44341 | 2020-04-06 07:03:02 |
| FilingSummary.xml | 1803 | 2020-04-06 07:03:02 |
| Financial_Report.xlsx | 5832 | 2020-04-06 07:03:02 |
 gkmguz4xyj0w000001.jpg | 3077 | 2020-04-06 07:03:02 |
 gkmguz4xyj0w000002.jpg | 3568 | 2020-04-06 07:03:02 |
 gkmguz4xyj0w000003.jpg | 4298 | 2020-04-06 07:03:02 |
 gkmguz4xyj0w000004.jpg | 1704 | 2020-04-06 07:03:02 |
 gkmguz4xyj0w000005.jpg | 2183 | 2020-04-06 07:03:02 |
 gkmguz4xyj0w000006.jpg | 2642 | 2020-04-06 07:03:02 |
 gr5zmcyx2uqs000001.jpg | 10662 | 2020-04-06 07:03:02 |
| MetaLinks.json | 19815 | 2020-04-06 07:03:02 |
| R1.htm | 40181 | 2020-04-06 07:03:02 |
| report.css | 2767 | 2020-04-06 07:03:02 |
| sfe-20200330.xsd | 5777 | 2020-04-06 07:03:02 |
| sfe-20200330_lab.xml | 19481 | 2020-04-06 07:03:02 |
| sfe-20200330_pre.xml | 11631 | 2020-04-06 07:03:02 |
| sfe-8k_20200330.htm | 51181 | 2020-04-06 07:03:02 |
| sfe-8k_20200330_htm.xml | 3559 | 2020-04-06 07:03:02 |
| sfe-ex101_6.htm | 208832 | 2020-04-06 07:03:02 |
| sfe-ex102_7.htm | 22667 | 2020-04-06 07:03:02 |
| sfe-ex991_8.htm | 33657 | 2020-04-06 07:03:02 |
| Show.js | 1085 | 2020-04-06 07:03:02 |