XML 76 R3.htm IDEA: XBRL DOCUMENT v2.4.1.9
Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Securities held to maturity, fair value $ 139,171us-gaap_HeldToMaturitySecuritiesFairValue $ 137,087us-gaap_HeldToMaturitySecuritiesFairValue
Common stock, par value $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 10,000,000us-gaap_CommonStockSharesAuthorized 10,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 6,651,760us-gaap_CommonStockSharesIssued 6,651,760us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 6,327,226us-gaap_CommonStockSharesOutstanding 6,318,708us-gaap_CommonStockSharesOutstanding
Treasury stock, shares 324,534mbvt_TreasuryStockNumberOfShares 333,052mbvt_TreasuryStockNumberOfShares
Deferred Compensation Arrangements [Member]    
Common stock, shares outstanding 308,670us-gaap_CommonStockSharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_DeferredCompensationShareBasedPaymentsMember
319,854us-gaap_CommonStockSharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_DeferredCompensationShareBasedPaymentsMember
Preferred Class A Non-Voting [Member]    
Preferred stock, shares authorized 200,000us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= mbvt_PreferredClassNonVotingMember
200,000us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= mbvt_PreferredClassNonVotingMember
Preferred stock, shares outstanding 0us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= mbvt_PreferredClassNonVotingMember
0us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= mbvt_PreferredClassNonVotingMember
Preferred Class B Voting [Member]    
Preferred stock, shares authorized 1,500,000us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= mbvt_PreferredClassBVotingMember
1,500,000us-gaap_PreferredStockSharesAuthorized
/ us-gaap_StatementClassOfStockAxis
= mbvt_PreferredClassBVotingMember
Preferred stock, shares outstanding 0us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= mbvt_PreferredClassBVotingMember
0us-gaap_PreferredStockSharesOutstanding
/ us-gaap_StatementClassOfStockAxis
= mbvt_PreferredClassBVotingMember