Macatawa Bank Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Allowance for Loan Losses (Details)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Allowance for Loan Losses (Details)	9 Months Ended
	Sep. 30, 2021 USD ($) Grade	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Allowance for Loan Losses [Abstract]
Allowance for loan losses	$ 16,532,000	$ 16,806,000	$ 17,408,000	$ 16,558,000	$ 15,855,000	$ 17,200,000
Residential Mortgage [Member]
Allowance for Loan Losses [Abstract]
Period of historical loss experience applied to loans for estimating allowance for general component of non-classified loans	12 months
PPP Loans [Member]
Allowance for Loan Losses [Abstract]
Allowance for loan losses	$ 0
Commercial [Member]
Allowance for Loan Losses [Abstract]
Allowance for loan losses	$ 5,212,000	5,206,000	6,632,000	5,966,000	5,431,000	7,658,000
Period of historical loss experience applied to loans for estimating allowance for general component of non-classified loans	18 months
Threshold balance of loans evaluated for impairment	$ 500,000
Commercial [Member] \| Minimum [Member]
Allowance for Loan Losses [Abstract]
Internal risk grading of loans evaluated for impairment \| Grade	6
Commercial Real Estate [Member]
Allowance for Loan Losses [Abstract]
Allowance for loan losses	$ 8,501,000	8,740,000	7,999,000	7,667,000	7,262,000	6,521,000
Threshold balance of loans evaluated for impairment	$ 500,000
Commercial Real Estate [Member] \| Minimum [Member]
Allowance for Loan Losses [Abstract]
Internal risk grading of loans evaluated for impairment \| Grade	6
Consumer [Member]
Allowance for Loan Losses [Abstract]
Allowance for loan losses	$ 2,788,000	$ 2,856,000	$ 2,758,000	$ 2,909,000	$ 3,138,000	$ 3,009,000
Period of historical loss experience applied to loans for estimating allowance for general component of non-classified loans	12 months