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Document And Entity Information
Nov. 17, 2022
Document Information [Line Items]  
Entity, Registrant Name FIRST COMMUNITY BANKSHARES, INC.
Document, Type 8-K
Document, Period End Date Nov. 17, 2022
Entity, Incorporation, State or Country Code VA
Entity, File Number 000-19297
Entity, Tax Identification Number 55-0694814
Entity, Address, Address Line One P.O. Box 989
Entity, Address, City or Town Bluefield
Entity, Address, State or Province VA
Entity, Address, Postal Zip Code 24605-0989
City Area Code 276
Local Phone Number 326-9000
Written Communications true
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock ($1.00 par value)
Trading Symbol FCBC
Security Exchange Name NASDAQ
Entity, Emerging Growth Company false
Amendment Flag false
Entity, Central Index Key 0000859070