Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-23-002883-index-headers.html | 2023-02-09 16:06:59 | |
| 0001437749-23-002883-index.html | 2023-02-09 16:06:59 | |
| 0001437749-23-002883.txt | 2023-02-09 16:06:59 | |
 0001437749-23-002883-xbrl.zip | 152443 | 2023-02-09 16:06:59 |
| ex_460642.htm | 9709 | 2023-02-09 16:06:59 |
| ex_460643.htm | 9732 | 2023-02-09 16:06:59 |
| ex_460644.htm | 6766 | 2023-02-09 16:06:59 |
| ex_469024.htm | 963 | 2023-02-09 16:06:59 |
 ex_469024img001.jpg | 85377 | 2023-02-09 16:06:59 |
| FilingSummary.xml | 28967 | 2023-02-09 16:06:59 |
| Financial_Report.xlsx | 67059 | 2023-02-09 16:06:59 |
| MetaLinks.json | 690085 | 2023-02-09 16:06:59 |
| R1.htm | 51790 | 2023-02-09 16:06:59 |
| R10.htm | 49597 | 2023-02-09 16:06:59 |
| R11.htm | 35911 | 2023-02-09 16:06:59 |
| R12.htm | 13342 | 2023-02-09 16:06:59 |
| R13.htm | 89435 | 2023-02-09 16:06:59 |
| R14.htm | 168395 | 2023-02-09 16:06:59 |
| R15.htm | 110188 | 2023-02-09 16:06:59 |
| R16.htm | 41856 | 2023-02-09 16:06:59 |
| R17.htm | 9572 | 2023-02-09 16:06:59 |
| R18.htm | 80576 | 2023-02-09 16:06:59 |
| R19.htm | 90836 | 2023-02-09 16:06:59 |
| R2.htm | 142750 | 2023-02-09 16:06:59 |
| R20.htm | 23963 | 2023-02-09 16:06:59 |
| R21.htm | 9524 | 2023-02-09 16:06:59 |
| R22.htm | 10115 | 2023-02-09 16:06:59 |
| R23.htm | 17328 | 2023-02-09 16:06:59 |
| R24.htm | 34263 | 2023-02-09 16:06:59 |
| R25.htm | 16926 | 2023-02-09 16:06:59 |
| R26.htm | 11289 | 2023-02-09 16:06:59 |
| R27.htm | 11743 | 2023-02-09 16:06:59 |
| R28.htm | 46670 | 2023-02-09 16:06:59 |
| R29.htm | 19284 | 2023-02-09 16:06:59 |
| R3.htm | 33373 | 2023-02-09 16:06:59 |
| R30.htm | 36562 | 2023-02-09 16:06:59 |
| R31.htm | 13577 | 2023-02-09 16:06:59 |
| R32.htm | 16768 | 2023-02-09 16:06:59 |
| R33.htm | 139318 | 2023-02-09 16:06:59 |
| R34.htm | 18877 | 2023-02-09 16:06:59 |
| R35.htm | 7347 | 2023-02-09 16:06:59 |
| R36.htm | 7021 | 2023-02-09 16:06:59 |
| R37.htm | 8937 | 2023-02-09 16:06:59 |
| R38.htm | 53447 | 2023-02-09 16:06:59 |
| R4.htm | 92920 | 2023-02-09 16:06:59 |
| R5.htm | 21217 | 2023-02-09 16:06:59 |
| R6.htm | 33719 | 2023-02-09 16:06:59 |
| R7.htm | 104285 | 2023-02-09 16:06:59 |
| R8.htm | 150153 | 2023-02-09 16:06:59 |
| R9.htm | 12658 | 2023-02-09 16:06:59 |
| report.css | 2767 | 2023-02-09 16:06:59 |
| Show.js | 1085 | 2023-02-09 16:06:59 |
| sofo-20221231.xsd | 51916 | 2023-02-09 16:06:59 |
| sofo-20221231_cal.xml | 62291 | 2023-02-09 16:06:59 |
| sofo-20221231_def.xml | 380408 | 2023-02-09 16:06:59 |
| sofo-20221231_lab.xml | 384043 | 2023-02-09 16:06:59 |
| sofo-20221231_pre.xml | 408322 | 2023-02-09 16:06:59 |
| sofo20221231_10q.htm | 1062047 | 2023-02-09 16:06:59 |
| sofo20221231_10q_htm.xml | 1091833 | 2023-02-09 16:06:59 |