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Cover
Jan. 24, 2023
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jan. 24, 2023
Entity File Number 000-27719
Entity Registrant Name Southern First Bancshares, Inc.
Entity Central Index Key 0001090009
Entity Tax Identification Number 58-2459561
Entity Incorporation, State or Country Code SC
Entity Address, Address Line One 6 Verdae Boulevard
Entity Address, City or Town Greenville
Entity Address, State or Province SC
Entity Address, Postal Zip Code 29607                 
City Area Code 864
Local Phone Number 679-9000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock
Trading Symbol SFST
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Entity Information, Former Legal or Registered Name 100 Verdae Boulevard, Suite 100, Greenville, SC