XML 26 R1.htm IDEA: XBRL DOCUMENT v3.19.3
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2019
Oct. 31, 2019
Cover [Abstract]    
Entity Registrant Name CHOICEONE FINANCIAL SERVICES INC  
Entity Central Index Key 0000803164  
Document Type 10-Q  
Document Period End Date Sep. 30, 2019  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity File Number 000-19202  
Entity Incorporation, State or Country Code MI  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Smaller Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   7,246,068
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2019