Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT (Details)

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LONG-TERM DEBT (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Debt Instrument [Line Items]    
Debt instrument, Amount $ 40,000,000  
Issuance date Apr. 21, 2011  
Proceeds from debenture issued 41,238,000  
Maturity period of debenture 30 years  
Earliest redemption period of debenture 5 years  
Number of interest deferrals on consecutive quarterly payments 20  
Accrued and unpaid interest included in accrued expenses and other liabilities 4,700,000 3,100,000
Long-term debt 41,238,000 41,238,000
Other assets 4,435,000 6,635,000
Tier 1 capital for regulatory capital purposes 37,700,000 31,300,000
Common Securities [Member]
    
Debt Instrument [Line Items]    
Other assets 1,238,000 1,238,000
Macatawa Statutory Trust I [Member]
    
Debt Instrument [Line Items]    
Basis spread on three-month LIBOR (in hundredths) 3.05%  
Issuance date Jul. 15, 2003  
Description of Variable Rate Basis LIBOR  
Macatawa Statutory Trust I [Member] | Preferred Securities [Member]
    
Debt Instrument [Line Items]    
Debt instrument, Amount 20,000,000  
Macatawa Statutory Trust I [Member] | Common Securities [Member]
    
Debt Instrument [Line Items]    
Debt instrument, Amount 619,000  
Macatawa Statutory Trust II [Member]
    
Debt Instrument [Line Items]    
Basis spread on three-month LIBOR (in hundredths) 2.75%  
Issuance date Mar. 18, 2004  
Description of Variable Rate Basis LIBOR  
Macatawa Statutory Trust II [Member] | Preferred Securities [Member]
    
Debt Instrument [Line Items]    
Debt instrument, Amount 20,000,000  
Macatawa Statutory Trust II [Member] | Common Securities [Member]
    
Debt Instrument [Line Items]    
Debt instrument, Amount 619,000  
Debentures [Member]
    
Debt Instrument [Line Items]    
Long-term debt $ 41,238,000 $ 41,238,000