Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000091767-22-000006-index.html | 2022-02-10 08:18:07 | |
| 0000091767-22-000006.txt | 2022-02-10 08:18:07 | |
 0000091767-22-000006-xbrl.zip | 36702 | 2022-02-10 08:18:07 |
| a2021q4exhibit99.htm | 342905 | 2022-02-10 08:18:07 |
| FilingSummary.xml | 1654 | 2022-02-10 08:18:07 |
| Financial_Report.xlsx | 5652 | 2022-02-10 08:18:07 |
 image1a.jpg | 9834 | 2022-02-10 08:18:07 |
| MetaLinks.json | 16569 | 2022-02-10 08:18:07 |
| R1.htm | 38547 | 2022-02-10 08:18:07 |
| report.css | 2767 | 2022-02-10 08:18:07 |
| Show.js | 1085 | 2022-02-10 08:18:07 |
| son-20220210.htm | 35128 | 2022-02-10 08:18:07 |
| son-20220210.xsd | 1912 | 2022-02-10 08:18:07 |
| son-20220210_htm.xml | 10936 | 2022-02-10 08:18:07 |
| son-20220210_lab.xml | 23924 | 2022-02-10 08:18:07 |
| son-20220210_pre.xml | 12607 | 2022-02-10 08:18:07 |