Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
9 Months Ended
Sep. 30, 2021
Oct. 28, 2021
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2021  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q3  
Document Transition Report false  
Entity File Number 000-25927  
Entity Registrant Name MACATAWA BANK CORP  
Entity Central Index Key 0001053584  
Entity Incorporation, State or Country Code MI  
Entity Tax Identification Number 38-3391345  
Entity Address, Address Line One 10753 Macatawa Drive  
Entity Address, City or Town Holland  
Entity Address, State or Province MI  
Entity Address, Postal Zip Code 49424  
City Area Code 616  
Local Phone Number 820-1444  
Title of 12(b) Security Common stock  
Trading Symbol MCBC  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   34,189,799