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Cover - USD ($)
 12 Months Ended
Dec. 31, 2024
Mar. 14, 2025
Jun. 28, 2024
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2024    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2024    
Current Fiscal Year End Date --12-31    
Entity File Number 000-28344    
Entity Registrant Name First Community Corporation    
Entity Central Index Key 0000932781    
Entity Tax Identification Number 57-1010751    
Entity Incorporation, State or Country Code SC    
Entity Address, Address Line One 5455 Sunset Blvd.    
Entity Address, City or Town Lexington    
Entity Address, State or Province SC    
Entity Address, Postal Zip Code 29072    
City Area Code 803    
Local Phone Number 951-2265    
Title of 12(b) Security Common stock, $1.00 par value per share    
Trading Symbol FCCO    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 126,159,566
Entity Common Stock, Shares Outstanding   7,671,056  
Auditor Name Elliott Davis, LLC    
Auditor Firm ID 149    
Auditor Location Charleston, South Carolina