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LONG-TERM DEBT (Details) (USD $)
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12 Months Ended | |
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Dec. 31, 2014
Payment
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Dec. 31, 2013
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| Debt Instrument [Line Items] | ||
| Aggregate liquidation amount of pooled trust preferred securities | $ 40,000,000us-gaap_AuctionMarketPreferredSecuritiesStockSeriesLiquidationValue | |
| Issuance date | Apr. 21, 2011 | |
| Proceeds from debenture issued | 41,238,000us-gaap_ProceedsFromIssuanceOfDebt | |
| Number of interest deferrals on consecutive quarterly payments | 20mcbc_NumberOfTimesCompanyCanDeferQuarterlyPayments | |
| Long-term debt | 41,238,000us-gaap_LongTermDebt | 41,238,000us-gaap_LongTermDebt |
| Other assets | 2,831,000us-gaap_OtherAssets | 4,491,000us-gaap_OtherAssets |
| Preferred Securities issued qualified as Tier 1 capital for regulatory capital purposes | 97,420,000us-gaap_CapitalRequiredForCapitalAdequacy | 88,915,000us-gaap_CapitalRequiredForCapitalAdequacy |
| Preferred Securities [Member] | ||
| Debt Instrument [Line Items] | ||
| Preferred Securities issued qualified as Tier 1 capital for regulatory capital purposes |
40,000,000us-gaap_CapitalRequiredForCapitalAdequacy / us-gaap_DebtInstrumentAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember |
40,000,000us-gaap_CapitalRequiredForCapitalAdequacy / us-gaap_DebtInstrumentAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember |
| Common Securities [Member] | ||
| Debt Instrument [Line Items] | ||
| Other assets |
1,238,000us-gaap_OtherAssets / us-gaap_DebtInstrumentAxis = us-gaap_CommonStockMember |
1,238,000us-gaap_OtherAssets / us-gaap_DebtInstrumentAxis = us-gaap_CommonStockMember |
| Macatawa Statutory Trust I [Member] | ||
| Debt Instrument [Line Items] | ||
| Basis spread on three-month LIBOR (in hundredths) |
3.05%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = mcbc_MacatawaStatutoryTrustIMember |
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| Description of Variable Rate Basis | LIBOR | |
| Accrued and unpaid interest included in accrued expenses and other liabilities |
3,000,000us-gaap_DebtInstrumentIncreaseAccruedInterest / us-gaap_LongtermDebtTypeAxis = mcbc_MacatawaStatutoryTrustIMember |
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| Macatawa Statutory Trust I [Member] | Preferred Securities [Member] | ||
| Debt Instrument [Line Items] | ||
| Aggregate liquidation amount of pooled trust preferred securities |
20,000,000us-gaap_AuctionMarketPreferredSecuritiesStockSeriesLiquidationValue / us-gaap_DebtInstrumentAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember / us-gaap_LongtermDebtTypeAxis = mcbc_MacatawaStatutoryTrustIMember |
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| Macatawa Statutory Trust I [Member] | Common Securities [Member] | ||
| Debt Instrument [Line Items] | ||
| Aggregate liquidation amount of pooled trust preferred securities |
619,000us-gaap_AuctionMarketPreferredSecuritiesStockSeriesLiquidationValue / us-gaap_DebtInstrumentAxis = us-gaap_CommonStockMember / us-gaap_LongtermDebtTypeAxis = mcbc_MacatawaStatutoryTrustIMember |
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| Macatawa Statutory Trust II [Member] | ||
| Debt Instrument [Line Items] | ||
| Basis spread on three-month LIBOR (in hundredths) |
2.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = mcbc_MacatawaStatutoryTrustIiMember |
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| Description of Variable Rate Basis | LIBOR | |
| Accrued and unpaid interest included in accrued expenses and other liabilities |
2,700,000us-gaap_DebtInstrumentIncreaseAccruedInterest / us-gaap_LongtermDebtTypeAxis = mcbc_MacatawaStatutoryTrustIiMember |
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| Macatawa Statutory Trust II [Member] | Preferred Securities [Member] | ||
| Debt Instrument [Line Items] | ||
| Aggregate liquidation amount of pooled trust preferred securities |
20,000,000us-gaap_AuctionMarketPreferredSecuritiesStockSeriesLiquidationValue / us-gaap_DebtInstrumentAxis = us-gaap_TrustPreferredSecuritiesSubjectToMandatoryRedemptionMember / us-gaap_LongtermDebtTypeAxis = mcbc_MacatawaStatutoryTrustIiMember |
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| Macatawa Statutory Trust II [Member] | Common Securities [Member] | ||
| Debt Instrument [Line Items] | ||
| Aggregate liquidation amount of pooled trust preferred securities |
$ 619,000us-gaap_AuctionMarketPreferredSecuritiesStockSeriesLiquidationValue / us-gaap_DebtInstrumentAxis = us-gaap_CommonStockMember / us-gaap_LongtermDebtTypeAxis = mcbc_MacatawaStatutoryTrustIiMember |
| X | ||||||||||
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- Definition
The number of times the company can exercise the option to defer interest payments on the debentures on a consecutive quarterly payment periods. No definition available.
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- Definition
The amount of the liquidation value for auction market preferred securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The minimum amount of Total Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
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- Definition
The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. No definition available.
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- Definition
Increase for accrued, but unpaid interest on the debt instrument for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Date the debt instrument was issued, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate carrying amounts, as of the balance sheet date, of assets not separately disclosed in the balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. No definition available.
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