Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001206774-20-000670-index-headers.html | 2020-03-02 13:21:53 | |
| 0001206774-20-000670-index.html | 2020-03-02 13:21:53 | |
| 0001206774-20-000670.txt | 2020-03-02 13:21:53 | |
 0001206774-20-000670-xbrl.zip | 285431 | 2020-03-02 13:21:53 |
| FilingSummary.xml | 69748 | 2020-03-02 13:21:53 |
| Financial_Report.xlsx | 160360 | 2020-03-02 13:21:53 |
| R1.htm | 38843 | 2020-03-02 13:21:53 |
| R10.htm | 7166 | 2020-03-02 13:21:53 |
| R100.htm | 35865 | 2020-03-02 13:21:53 |
| R101.htm | 8090 | 2020-03-02 13:21:53 |
| R102.htm | 8613 | 2020-03-02 13:21:53 |
| R103.htm | 17422 | 2020-03-02 13:21:53 |
| R104.htm | 10887 | 2020-03-02 13:21:53 |
| R105.htm | 12938 | 2020-03-02 13:21:53 |
| R106.htm | 8055 | 2020-03-02 13:21:53 |
| R107.htm | 36861 | 2020-03-02 13:21:53 |
| R108.htm | 13457 | 2020-03-02 13:21:53 |
| R109.htm | 23853 | 2020-03-02 13:21:53 |
| R11.htm | 392122 | 2020-03-02 13:21:53 |
| R110.htm | 36870 | 2020-03-02 13:21:53 |
| R111.htm | 72263 | 2020-03-02 13:21:53 |
| R112.htm | 51038 | 2020-03-02 13:21:53 |
| R113.htm | 4074 | 2020-03-02 13:21:53 |
| R114.htm | 97327 | 2020-03-02 13:21:53 |
| R115.htm | 62363 | 2020-03-02 13:21:53 |
| R12.htm | 55557 | 2020-03-02 13:21:53 |
| R13.htm | 18817 | 2020-03-02 13:21:53 |
| R14.htm | 11612 | 2020-03-02 13:21:53 |
| R15.htm | 11884 | 2020-03-02 13:21:53 |
| R16.htm | 18123 | 2020-03-02 13:21:53 |
| R17.htm | 17217 | 2020-03-02 13:21:53 |
| R18.htm | 10107 | 2020-03-02 13:21:53 |
| R19.htm | 4674 | 2020-03-02 13:21:53 |
| R2.htm | 74697 | 2020-03-02 13:21:53 |
| R20.htm | 20860 | 2020-03-02 13:21:53 |
| R21.htm | 106491 | 2020-03-02 13:21:53 |
| R22.htm | 18612 | 2020-03-02 13:21:53 |
| R23.htm | 5700 | 2020-03-02 13:21:53 |
| R24.htm | 41524 | 2020-03-02 13:21:53 |
| R25.htm | 13037 | 2020-03-02 13:21:53 |
| R26.htm | 7345 | 2020-03-02 13:21:53 |
| R27.htm | 5302 | 2020-03-02 13:21:53 |
| R28.htm | 79388 | 2020-03-02 13:21:53 |
| R29.htm | 5066 | 2020-03-02 13:21:53 |
| R3.htm | 14709 | 2020-03-02 13:21:53 |
| R30.htm | 67994 | 2020-03-02 13:21:53 |
| R31.htm | 53085 | 2020-03-02 13:21:53 |
| R32.htm | 56474 | 2020-03-02 13:21:53 |
| R33.htm | 49004 | 2020-03-02 13:21:53 |
| R34.htm | 94103 | 2020-03-02 13:21:53 |
| R35.htm | 149163 | 2020-03-02 13:21:53 |
| R36.htm | 403293 | 2020-03-02 13:21:53 |
| R37.htm | 54717 | 2020-03-02 13:21:53 |
| R38.htm | 19775 | 2020-03-02 13:21:53 |
| R39.htm | 9741 | 2020-03-02 13:21:53 |
| R4.htm | 90663 | 2020-03-02 13:21:53 |
| R40.htm | 11245 | 2020-03-02 13:21:53 |
| R41.htm | 17646 | 2020-03-02 13:21:53 |
| R42.htm | 16496 | 2020-03-02 13:21:53 |
| R43.htm | 18419 | 2020-03-02 13:21:53 |
| R44.htm | 99437 | 2020-03-02 13:21:53 |
| R45.htm | 18121 | 2020-03-02 13:21:53 |
| R46.htm | 45569 | 2020-03-02 13:21:53 |
| R47.htm | 10541 | 2020-03-02 13:21:53 |
| R48.htm | 81383 | 2020-03-02 13:21:53 |
| R49.htm | 64948 | 2020-03-02 13:21:53 |
| R5.htm | 24477 | 2020-03-02 13:21:53 |
| R50.htm | 52797 | 2020-03-02 13:21:53 |
| R51.htm | 55717 | 2020-03-02 13:21:53 |
| R52.htm | 48907 | 2020-03-02 13:21:53 |
| R53.htm | 14983 | 2020-03-02 13:21:53 |
| R54.htm | 37124 | 2020-03-02 13:21:53 |
| R55.htm | 28810 | 2020-03-02 13:21:53 |
| R56.htm | 61420 | 2020-03-02 13:21:53 |
| R57.htm | 10669 | 2020-03-02 13:21:53 |
| R58.htm | 16211 | 2020-03-02 13:21:53 |
| R59.htm | 4102 | 2020-03-02 13:21:53 |
| R6.htm | 49538 | 2020-03-02 13:21:53 |
| R60.htm | 36093 | 2020-03-02 13:21:53 |
| R61.htm | 8707 | 2020-03-02 13:21:53 |
| R62.htm | 26951 | 2020-03-02 13:21:53 |
| R63.htm | 39870 | 2020-03-02 13:21:53 |
| R64.htm | 27215 | 2020-03-02 13:21:53 |
| R65.htm | 46702 | 2020-03-02 13:21:53 |
| R66.htm | 39290 | 2020-03-02 13:21:53 |
| R67.htm | 46998 | 2020-03-02 13:21:53 |
| R68.htm | 32636 | 2020-03-02 13:21:53 |
| R69.htm | 41752 | 2020-03-02 13:21:53 |
| R7.htm | 101279 | 2020-03-02 13:21:53 |
| R70.htm | 23895 | 2020-03-02 13:21:53 |
| R71.htm | 26642 | 2020-03-02 13:21:53 |
| R72.htm | 26629 | 2020-03-02 13:21:53 |
| R73.htm | 33846 | 2020-03-02 13:21:53 |
| R74.htm | 16316 | 2020-03-02 13:21:53 |
| R75.htm | 24660 | 2020-03-02 13:21:53 |
| R76.htm | 15580 | 2020-03-02 13:21:53 |
| R77.htm | 6886 | 2020-03-02 13:21:53 |
| R78.htm | 22723 | 2020-03-02 13:21:53 |
| R79.htm | 13134 | 2020-03-02 13:21:53 |
| R8.htm | 37730 | 2020-03-02 13:21:53 |
| R80.htm | 10579 | 2020-03-02 13:21:53 |
| R81.htm | 4645 | 2020-03-02 13:21:53 |
| R82.htm | 17281 | 2020-03-02 13:21:53 |
| R83.htm | 15278 | 2020-03-02 13:21:53 |
| R84.htm | 8128 | 2020-03-02 13:21:53 |
| R85.htm | 19042 | 2020-03-02 13:21:53 |
| R86.htm | 24819 | 2020-03-02 13:21:53 |
| R87.htm | 43048 | 2020-03-02 13:21:53 |
| R88.htm | 5995 | 2020-03-02 13:21:53 |
| R89.htm | 14905 | 2020-03-02 13:21:53 |
| R9.htm | 146086 | 2020-03-02 13:21:53 |
| R90.htm | 39567 | 2020-03-02 13:21:53 |
| R91.htm | 14180 | 2020-03-02 13:21:53 |
| R92.htm | 16460 | 2020-03-02 13:21:53 |
| R93.htm | 40576 | 2020-03-02 13:21:53 |
| R94.htm | 3989 | 2020-03-02 13:21:53 |
| R95.htm | 27667 | 2020-03-02 13:21:53 |
| R96.htm | 4937 | 2020-03-02 13:21:53 |
| R97.htm | 15389 | 2020-03-02 13:21:53 |
| R98.htm | 15842 | 2020-03-02 13:21:53 |
| R99.htm | 20813 | 2020-03-02 13:21:53 |
| report.css | 2768 | 2020-03-02 13:21:53 |
| sfb35772717-10k.htm | 2178952 | 2020-03-02 13:21:53 |
 sfb35772717-10k7x4x1.jpg | 53915 | 2020-03-02 13:21:53 |
| sfb35772717-ex21.htm | 597 | 2020-03-02 13:21:53 |
| sfb35772717-ex23.htm | 1427 | 2020-03-02 13:21:53 |
| sfb35772717-ex311.htm | 9184 | 2020-03-02 13:21:53 |
| sfb35772717-ex312.htm | 9177 | 2020-03-02 13:21:53 |
| sfb35772717-ex32.htm | 4749 | 2020-03-02 13:21:53 |
| sfb35772717-ex42.htm | 21253 | 2020-03-02 13:21:53 |
| sfst-20191231.xml | 3547959 | 2020-03-02 13:21:53 |
| sfst-20191231.xsd | 96723 | 2020-03-02 13:21:53 |
| sfst-20191231_cal.xml | 123219 | 2020-03-02 13:21:53 |
| sfst-20191231_def.xml | 458745 | 2020-03-02 13:21:53 |
| sfst-20191231_lab.xml | 709452 | 2020-03-02 13:21:53 |
| sfst-20191231_pre.xml | 638566 | 2020-03-02 13:21:53 |
| Show.js | 1085 | 2020-03-02 13:21:53 |