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| 0000092122-24-000057.txt | 2024-05-07 09:12:05 | |
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| ex99-1southern2024aconvert.htm | 12591 | 2024-05-07 09:12:05 |
| FilingSummary.xml | 1709 | 2024-05-07 09:12:05 |
| Financial_Report.xlsx | 6082 | 2024-05-07 09:12:05 |
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| R1.htm | 49991 | 2024-05-07 09:12:05 |
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| so-20240506.htm | 36644 | 2024-05-07 09:12:05 |
| so-20240506.xsd | 3645 | 2024-05-07 09:12:05 |
| so-20240506_def.xml | 17229 | 2024-05-07 09:12:05 |
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| so-20240506_lab.xml | 32685 | 2024-05-07 09:12:05 |
| so-20240506_pre.xml | 18087 | 2024-05-07 09:12:05 |