XML 16 R1.htm IDEA: XBRL DOCUMENT v3.24.0.1
Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Mar. 11, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-34292    
Entity Registrant Name ORRSTOWN FINANCIAL SERVICES, INC.    
Entity Incorporation, State or Country Code PA    
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    
Title of 12(b) Security Common Stock, no par value    
Trading Symbol ORRF    
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 Accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Document Financial Statement Error Correction [Flag] false    
Entity Public Float     $ 194.0
Entity Common Stock, Shares Outstanding (in shares)   10,705,077  
Documents Incorporated by Reference Portions of the Proxy Statement for the 2024 Annual Meeting of Shareholders are incorporated by reference in Part III of this Form 10-K.    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Central Index Key 0000826154