XML 42 R52.htm IDEA: XBRL DOCUMENT v2.4.1.9
Loans And The Allowance For Credit Losses (Composition of Loan Portfolio) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]    
Total Loans $ 1,182,334us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome $ 1,166,233us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Commercial, Financial And Agricultural [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 177,597us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= mbvt_CommercialFinancialAndAgriculturalMember		 172,810us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= mbvt_CommercialFinancialAndAgriculturalMember
Municipal Loans [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 94,366us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= mbvt_MunicipalLoansMember		 94,007us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= mbvt_MunicipalLoansMember
Real Estate Loans – Residential [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 469,529us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember		 489,706us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialRealEstateMember
Real Estate Loans – Commercial [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 412,447us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateMember		 371,319us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateMember
Real Estate Loans – Construction [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 23,858us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConstructionLoansMember		 31,841us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConstructionLoansMember
Installment Loans [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Total Loans 4,504us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= mbvt_InstallmentLoansMember		 5,655us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= mbvt_InstallmentLoansMember
All Other Loans [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Total Loans $ 33us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= mbvt_AllOtherLoansMember		 $ 895us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= mbvt_AllOtherLoansMember