XML 58 R116.htm IDEA: XBRL DOCUMENT v2.4.1.9
Note 17 - Fair Values of Financial Instruments (Details) - Fair Value Hierarchy of Financial Instruments (USD $)
Dec. 31, 2014
Dec. 31, 2013
Financial assets    
Securities available for sale $ 432,912,000us-gaap_AvailableForSaleSecurities [1] $ 131,178,000us-gaap_AvailableForSaleSecurities [1]
Federal Home Loan Bank stock 13,699,000us-gaap_FederalHomeLoanBankStock [2] 11,961,000us-gaap_FederalHomeLoanBankStock [2]
Federal Home Loan Bank stock 13,699,000us-gaap_InvestmentInFederalHomeLoanBankStockFairValueDisclosure [2] 11,961,000us-gaap_InvestmentInFederalHomeLoanBankStockFairValueDisclosure [2]
Bank owned life insurance 57,861,000us-gaap_BankOwnedLifeInsurance 51,377,000us-gaap_BankOwnedLifeInsurance
Financial liabilities    
Deposits 2,276,915,000us-gaap_Deposits 1,118,911,000us-gaap_Deposits
Securities sold under agreements to repurchase 167,569,000us-gaap_SecuritiesSoldUnderAgreementsToRepurchase 69,305,000us-gaap_SecuritiesSoldUnderAgreementsToRepurchase
Accrued interest payable 12,263,000us-gaap_AccruedLiabilitiesCurrentAndNoncurrent 7,435,000us-gaap_AccruedLiabilitiesCurrentAndNoncurrent
Fair Value, Inputs, Level 1 [Member]    
Financial assets    
Cash 13,261,000us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
1,464,000us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Cash 13,261,000mbwm_CashFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
1,464,000mbwm_CashFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Fair Value, Inputs, Level 2 [Member]    
Financial assets    
Cash equivalents 159,477,000us-gaap_CashEquivalentsAtCarryingValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
145,501,000us-gaap_CashEquivalentsAtCarryingValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Cash equivalents 159,477,000us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
145,501,000us-gaap_CashAndCashEquivalentsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Bank owned life insurance 57,861,000us-gaap_BankOwnedLifeInsurance
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
51,377,000us-gaap_BankOwnedLifeInsurance
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Bank owned life insurance 57,861,000us-gaap_CashSurrenderValueFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
51,377,000us-gaap_CashSurrenderValueFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Accrued interest receivable 8,033,000us-gaap_InterestReceivable
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
3,649,000us-gaap_InterestReceivable
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Accrued interest receivable 8,033,000mbwm_AccruedInterestReceivableFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
3,649,000mbwm_AccruedInterestReceivableFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Financial liabilities    
Deposits 2,276,915,000us-gaap_Deposits
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
1,118,911,000us-gaap_Deposits
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Deposits 2,254,749,000us-gaap_DepositsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
1,120,576,000us-gaap_DepositsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Securities sold under agreements to repurchase 167,569,000us-gaap_SecuritiesSoldUnderAgreementsToRepurchase
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
69,305,000us-gaap_SecuritiesSoldUnderAgreementsToRepurchase
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Securities sold under agreements to repurchase 167,569,000us-gaap_SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
69,305,000us-gaap_SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Federal Home Loan Bank advances 54,022,000us-gaap_AdvancesFromFederalHomeLoanBanks
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
45,000,000us-gaap_AdvancesFromFederalHomeLoanBanks
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Federal Home Loan Bank advances 54,720,000us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
45,139,000us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Subordinated debentures 54,472,000us-gaap_SubordinatedDebt
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
32,990,000us-gaap_SubordinatedDebt
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Subordinated debentures 54,508,000us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
32,974,000us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Accrued interest payable 1,942,000us-gaap_AccruedLiabilitiesCurrentAndNoncurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
2,041,000us-gaap_AccruedLiabilitiesCurrentAndNoncurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Accrued interest payable 1,942,000us-gaap_InterestPayableCurrentAndNoncurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
2,041,000us-gaap_InterestPayableCurrentAndNoncurrent
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
Fair Value, Inputs, Level 3 [Member]    
Financial assets    
Loans, net 2,069,236,000us-gaap_LoansReceivableNet
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
1,030,422,000us-gaap_LoansReceivableNet
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
Loans, net 2,064,140,000us-gaap_LoansReceivableFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
1,027,300,000us-gaap_LoansReceivableFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
Interest Rate Swap [Member]    
Financial liabilities    
Interest rate swap 253,000us-gaap_DerivativeLiabilities
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
[1] 264,000us-gaap_DerivativeLiabilities
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
[1]
Interest rate swap $ 253,000us-gaap_DerivativeFairValueOfDerivativeLiability
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
[1] $ 264,000us-gaap_DerivativeFairValueOfDerivativeLiability
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
[1]
[1] See Note 18 for a description of the fair value hierarchy as well as a disclosure of levels for classes of financial assets and liabilities.
[2] It is not practical to determine the fair value of FHLB stock due to transferability restrictions.