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Document and Entity Information
Aug. 30, 2021
Document and Entity Information [Abstract]  
Document Type 8-K
Document Period End Date Aug. 30, 2021
Entity File Number 000-55983
Entity Registrant Name Meridian Corp
Entity Incorporation, State or Country Code PA
Entity Tax Identification Number 83-1561918
Entity Address, Address Line One 9 Old Lincoln Highway
Entity Address, City or Town Malvern
Entity Address, State or Province PA
Entity Address, Postal Zip Code 19355
City Area Code 484
Local Phone Number 568-5000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $1 par value
Trading Symbol MRBK
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Entity Ex Transition Period false
Entity Central Index Key 0001750735
Amendment Flag false