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| 0001437749-23-013927-index.html | 2023-05-11 16:06:36 | |
| 0001437749-23-013927.txt | 2023-05-11 16:06:36 | |
 0001437749-23-013927-xbrl.zip | 189996 | 2023-05-11 16:06:36 |
| ex_483844.htm | 9705 | 2023-05-11 16:06:36 |
| ex_483845.htm | 9728 | 2023-05-11 16:06:36 |
| ex_483846.htm | 6759 | 2023-05-11 16:06:36 |
| ex_512631.htm | 129395 | 2023-05-11 16:06:36 |
| FilingSummary.xml | 29156 | 2023-05-11 16:06:36 |
| Financial_Report.xlsx | 74305 | 2023-05-11 16:06:36 |
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| R1.htm | 51790 | 2023-05-11 16:06:36 |
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| R27.htm | 11923 | 2023-05-11 16:06:36 |
| R28.htm | 55497 | 2023-05-11 16:06:36 |
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| R8.htm | 156908 | 2023-05-11 16:06:36 |
| R9.htm | 15529 | 2023-05-11 16:06:36 |
| report.css | 2767 | 2023-05-11 16:06:36 |
| Show.js | 1085 | 2023-05-11 16:06:36 |
| sofo-20230331.xsd | 52655 | 2023-05-11 16:06:36 |
| sofo-20230331_cal.xml | 60710 | 2023-05-11 16:06:36 |
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| sofo20230331_10q.htm | 1467802 | 2023-05-11 16:06:36 |
| sofo20230331_10q_htm.xml | 1466947 | 2023-05-11 16:06:36 |