Annual report pursuant to Section 13 and 15(d)

LONG TERM DEBT (Details)

v3.8.0.1
LONG TERM DEBT (Details)
 12 Months Ended
Dec. 31, 2017
USD ($)
Payment
Dec. 31, 2016
USD ($)
Debt Instrument [Line Items]    
Aggregate liquidation amount of pooled trust preferred securities $ 40,000,000  
Proceeds from debenture issued $ 41,238,000  
Number of interest deferrals on consecutive quarterly payments | Payment 20  
Long-term debt $ 41,238,000 $ 41,238,000
Other assets 4,639,000 5,286,000
Preferred Securities issued qualified as Tier 1 capital for regulatory capital purposes 123,246,000 118,655,000
Common Securities [Member]    
Debt Instrument [Line Items]    
Other assets $ 1,238,000 1,238,000
Macatawa Statutory Trust I [Member]    
Debt Instrument [Line Items]    
Description of variable rate basis three-month LIBOR  
Maturity date Jul. 15, 2033  
Macatawa Statutory Trust I [Member] | LIBOR [Member]    
Debt Instrument [Line Items]    
Basis spread on three-month LIBOR 3.05%  
Term of variable rate 3 months  
Macatawa Statutory Trust I [Member] | Common Securities [Member]    
Debt Instrument [Line Items]    
Aggregate liquidation amount of pooled trust preferred securities $ 619,000  
Macatawa Statutory Trust II [Member]    
Debt Instrument [Line Items]    
Description of variable rate basis three-month LIBOR  
Maturity date Mar. 18, 2034  
Macatawa Statutory Trust II [Member] | LIBOR [Member]    
Debt Instrument [Line Items]    
Basis spread on three-month LIBOR 2.75%  
Term of variable rate 3 months  
Macatawa Statutory Trust II [Member] | Common Securities [Member]    
Debt Instrument [Line Items]    
Aggregate liquidation amount of pooled trust preferred securities $ 619,000  
Preferred Securities [Member]    
Debt Instrument [Line Items]    
Preferred Securities issued qualified as Tier 1 capital for regulatory capital purposes 40,000,000 $ 40,000,000
Preferred Securities [Member] | Macatawa Statutory Trust I [Member]    
Debt Instrument [Line Items]    
Aggregate liquidation amount of pooled trust preferred securities 20,000,000  
Preferred Securities [Member] | Macatawa Statutory Trust II [Member]    
Debt Instrument [Line Items]    
Aggregate liquidation amount of pooled trust preferred securities $ 20,000,000