    <SEC-DOCUMENT>0001206774-22-002591-index.html : 20221025
    <SEC-HEADER>0001206774-22-002591.hdr.sgml : 20221025
    <ACCEPTANCE-DATETIME>20221025090040
    ACCESSION NUMBER:		0001206774-22-002591
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		25
    CONFORMED PERIOD OF REPORT:	20221025
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20221025
    DATE AS OF CHANGE:		20221025

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			SOUTHERN FIRST BANCSHARES INC
    		CENTRAL INDEX KEY:			0001090009
    		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
    		IRS NUMBER:				582459561
    		STATE OF INCORPORATION:			SC
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-27719
    		FILM NUMBER:		221327321

    	BUSINESS ADDRESS:
    		STREET 1:		6 VERDAE BOULEVARD
    		CITY:			GREENVILLE
    		STATE:			SC
    		ZIP:			29607
    		BUSINESS PHONE:		8646799000

    	MAIL ADDRESS:
    		STREET 1:		6 VERDAE BOULEVARD
    		CITY:			GREENVILLE
    		STATE:			SC
    		ZIP:			29607

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	GREENVILLE FIRST BANCSHARES INC
    		DATE OF NAME CHANGE:	19990707
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>sfb4121731-8k.htm
    <DESCRIPTION>CURRENT REPORT
    <TEXT>
    Document 1 - file: sfb4121731-8k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>sfb4121731-ex991.htm
    <DESCRIPTION>EARNINGS PRESS RELEASE FOR PERIOD ENDED SEPTEMBER 30, 2022
    <TEXT>
    Document 2 - file: sfb4121731-ex991.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>sfb4121731-ex992.htm
    <DESCRIPTION>SLIDE PRESENTATION
    <TEXT>
    Document 3 - file: sfb4121731-ex992.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>4
    <FILENAME>sfst-20221025.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
    <TEXT>
    Document 4 - file: sfst-20221025.xsd

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    <SEQUENCE>6
    <FILENAME>sfst-20221025_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
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    <FILENAME>sfb4121731-ex992x01.jpg
    <DESCRIPTION>GRAPHIC
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    <SEQUENCE>10
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    <SEQUENCE>11
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    <SEQUENCE>12
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    <SEQUENCE>15
    <FILENAME>sfb4121731-ex992x07.jpg
    <DESCRIPTION>GRAPHIC
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    <SEQUENCE>16
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    <FILENAME>sfb4121731-ex992x09.jpg
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    <TEXT>
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    <TYPE>XML
    <SEQUENCE>18
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    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
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    <SEQUENCE>19
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    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>20
    <FILENAME>Financial_Report.xlsx
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    <TEXT>
    Document 20 - file: Financial_Report.xlsx

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    <TYPE>XML
    <SEQUENCE>21
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    <TEXT>
    Document 21 - file: Show.js

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    <TYPE>XML
    <SEQUENCE>22
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    <TEXT>
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    <TYPE>XML
    <SEQUENCE>23
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    <TYPE>JSON
    <SEQUENCE>25
    <FILENAME>MetaLinks.json
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    <TEXT>
    Document 25 - file: MetaLinks.json

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    <TYPE>ZIP
    <SEQUENCE>26
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    <TEXT>
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