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

FAIR VALUE, Quantitative Information about Level 3 Fair Value Measurements (Details) - Level 3 [Member] $ in Thousands	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Quantitative information about Level 3 fair value measurements measured on non-recurring basis [Abstract]
Impaired loans	$ 2,205	$ 3,211
OREO	$ 1,044	$ 1,205
Sales Comparison Approach [Member] \| Adjustment for Differences Between Comparable Sales [Member] \| Minimum [Member]
Quantitative information about Level 3 fair value measurements measured on non-recurring basis [Abstract]
Impaired loans, unobservable input(s)	0.010	0.010
OREO, unobservable input(s)	0.030	0.030
Sales Comparison Approach [Member] \| Adjustment for Differences Between Comparable Sales [Member] \| Maximum [Member]
Quantitative information about Level 3 fair value measurements measured on non-recurring basis [Abstract]
Impaired loans, unobservable input(s)	0.200	0.150
OREO, unobservable input(s)	0.200	0.200
Income Approach [Member] \| Capitalization Rate [Member] \| Minimum [Member]
Quantitative information about Level 3 fair value measurements measured on non-recurring basis [Abstract]
Impaired loans, unobservable input(s)	0.095	0.095
OREO, unobservable input(s)	0.095	0.095
Income Approach [Member] \| Capitalization Rate [Member] \| Maximum [Member]
Quantitative information about Level 3 fair value measurements measured on non-recurring basis [Abstract]
Impaired loans, unobservable input(s)	0.110	0.110
OREO, unobservable input(s)	0.110	0.110