Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-20-020169-index-headers.html | 2020-04-30 16:05:47 | |
| 0001564590-20-020169-index.html | 2020-04-30 16:05:47 | |
| 0001564590-20-020169.txt | 2020-04-30 16:05:47 | |
 0001564590-20-020169-xbrl.zip | 42360 | 2020-04-30 16:05:47 |
| FilingSummary.xml | 1906 | 2020-04-30 16:05:47 |
| Financial_Report.xlsx | 7281 | 2020-04-30 16:05:47 |
| MetaLinks.json | 33044 | 2020-04-30 16:05:47 |
| R1.htm | 76421 | 2020-04-30 16:05:47 |
| report.css | 2767 | 2020-04-30 16:05:47 |
| sf-10ka_20191231.htm | 157154 | 2020-04-30 16:05:47 |
| sf-10ka_20191231_htm.xml | 15949 | 2020-04-30 16:05:47 |
| sf-20191231.xsd | 7043 | 2020-04-30 16:05:47 |
| sf-20191231_def.xml | 19882 | 2020-04-30 16:05:47 |
| sf-20191231_lab.xml | 35389 | 2020-04-30 16:05:47 |
| sf-20191231_pre.xml | 21424 | 2020-04-30 16:05:47 |
| sf-ex313_9.htm | 5496 | 2020-04-30 16:05:47 |
| sf-ex314_8.htm | 5384 | 2020-04-30 16:05:47 |
| sf-ex45_10.htm | 166706 | 2020-04-30 16:05:47 |
| Show.js | 1085 | 2020-04-30 16:05:47 |