Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001718108-23-000003-index-headers.html | 2023-03-09 07:01:05 | |
| 0001718108-23-000003-index.html | 2023-03-09 07:01:05 | |
| 0001718108-23-000003.txt | 2023-03-09 07:01:05 | |
 0001718108-23-000003-xbrl.zip | 18596 | 2023-03-09 07:01:05 |
| FilingSummary.xml | 1651 | 2023-03-09 07:01:05 |
| Financial_Report.xlsx | 5725 | 2023-03-09 07:01:05 |
 logo.gif | 12839 | 2023-03-09 07:01:05 |
| MetaLinks.json | 18667 | 2023-03-09 07:01:05 |
| R1.htm | 41341 | 2023-03-09 07:01:05 |
| report.css | 2767 | 2023-03-09 07:01:05 |
| Show.js | 1085 | 2023-03-09 07:01:05 |
| surf-20230309.htm | 37609 | 2023-03-09 07:01:05 |
| surf-20230309.xsd | 1923 | 2023-03-09 07:01:05 |
| surf-20230309_htm.xml | 12799 | 2023-03-09 07:01:05 |
| surf-20230309_lab.xml | 25848 | 2023-03-09 07:01:05 |
| surf-20230309_pre.xml | 13595 | 2023-03-09 07:01:05 |
| surf-392023xex991.htm | 58814 | 2023-03-09 07:01:05 |