Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001718108-22-000005-index-headers.html | 2022-03-02 07:02:24 | |
| 0001718108-22-000005-index.html | 2022-03-02 07:02:24 | |
| 0001718108-22-000005.txt | 2022-03-02 07:02:24 | |
 0001718108-22-000005-xbrl.zip | 19237 | 2022-03-02 07:02:24 |
| FilingSummary.xml | 1654 | 2022-03-02 07:02:24 |
| Financial_Report.xlsx | 5701 | 2022-03-02 07:02:24 |
 image.jpg | 17879 | 2022-03-02 07:02:24 |
| MetaLinks.json | 18078 | 2022-03-02 07:02:24 |
| R1.htm | 41868 | 2022-03-02 07:02:24 |
| report.css | 2767 | 2022-03-02 07:02:24 |
| Show.js | 1085 | 2022-03-02 07:02:24 |
| surf-20220302.htm | 37834 | 2022-03-02 07:02:24 |
| surf-20220302.xsd | 1923 | 2022-03-02 07:02:24 |
| surf-20220302_htm.xml | 13026 | 2022-03-02 07:02:24 |
| surf-20220302_lab.xml | 25848 | 2022-03-02 07:02:24 |
| surf-20220302_pre.xml | 13595 | 2022-03-02 07:02:24 |
| surf-322022xex991.htm | 66138 | 2022-03-02 07:02:24 |