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Document and Entity Information
Nov. 07, 2022
Cover [Abstract]  
Entity Registrant Name ORRSTOWN FINANCIAL SERVICES INC
Amendment Flag false
Entity Central Index Key 0000826154
Document Type 8-K
Document Period End Date Nov. 07, 2022
Entity Incorporation State Country Code PA
Entity File Number 001-34292
Entity Tax Identification Number 23-2530374
Entity Address, Address Line One 77 East King Street
Entity Address, Address Line Two P. O. Box 250
Entity Address, City or Town Shippensburg
Entity Address, State or Province PA
Entity Address, Postal Zip Code 17257
City Area Code (717)
Local Phone Number 532-6114
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, no par value
Trading Symbol ORRF
Security Exchange Name NASDAQ
Entity Emerging Growth Company false