Annual report pursuant to Section 13 and 15(d)

OTHER REAL ESTATE OWNED (Details)

v2.4.1.9
OTHER REAL ESTATE OWNED (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Period-end other real estate owned [Roll Forward]      
Beginning balance $ 53,501mcbc_OtherRealEstateAndForeclosedAssetsGross $ 69,743mcbc_OtherRealEstateAndForeclosedAssetsGross $ 83,663mcbc_OtherRealEstateAndForeclosedAssetsGross
Additions, transfers from loans 4,932mcbc_AdditionsTransfersFromLoansAndFixedAssets 3,539mcbc_AdditionsTransfersFromLoansAndFixedAssets 9,168mcbc_AdditionsTransfersFromLoansAndFixedAssets
Proceeds from sales of other real estate owned (12,487)us-gaap_ProceedsFromSaleOfOtherRealEstate (16,501)us-gaap_ProceedsFromSaleOfOtherRealEstate (18,729)us-gaap_ProceedsFromSaleOfOtherRealEstate
Valuation allowance reversal upon sale (3,499)mcbc_OtherRealEstateAndForeclosedAssetsValuationReversalUponSale (4,378)mcbc_OtherRealEstateAndForeclosedAssetsValuationReversalUponSale (4,300)mcbc_OtherRealEstateAndForeclosedAssetsValuationReversalUponSale
Gain (loss) on sale of other real estate owned 624us-gaap_GainsLossesOnSalesOfOtherRealEstate 1,098us-gaap_GainsLossesOnSalesOfOtherRealEstate (59)us-gaap_GainsLossesOnSalesOfOtherRealEstate
Other real estate owned, gross 43,071mcbc_OtherRealEstateAndForeclosedAssetsGross 53,501mcbc_OtherRealEstateAndForeclosedAssetsGross 69,743mcbc_OtherRealEstateAndForeclosedAssetsGross
Less: valuation allowance (14,829)us-gaap_RealEstateOwnedValuationAllowance (16,705)us-gaap_RealEstateOwnedValuationAllowance (18,161)us-gaap_RealEstateOwnedValuationAllowance
Ending balance 28,242us-gaap_OtherRealEstateAndForeclosedAssets 36,796us-gaap_OtherRealEstateAndForeclosedAssets 51,582us-gaap_OtherRealEstateAndForeclosedAssets
Activity in valuation allowance [Roll Forward]      
Beginning balance 16,705us-gaap_RealEstateOwnedValuationAllowance 18,161us-gaap_RealEstateOwnedValuationAllowance 17,225us-gaap_RealEstateOwnedValuationAllowance
Additions charged to expense 1,623us-gaap_RealEstateOwnedValuationAllowanceProvision1 2,922us-gaap_RealEstateOwnedValuationAllowanceProvision1 5,236us-gaap_RealEstateOwnedValuationAllowanceProvision1
Reversals upon sale (3,499)us-gaap_RealEstateOwnedValuationAllowanceAmountsApplied (4,378)us-gaap_RealEstateOwnedValuationAllowanceAmountsApplied (4,300)us-gaap_RealEstateOwnedValuationAllowanceAmountsApplied
Ending balance $ 14,829us-gaap_RealEstateOwnedValuationAllowance $ 16,705us-gaap_RealEstateOwnedValuationAllowance $ 18,161us-gaap_RealEstateOwnedValuationAllowance