| Cover | Dec. 18, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 18, 2024 |
| 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock, par value $1.00 per share |
| Trading Symbol | FCCO |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
