XML 35 R87.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Note 14 - Commitments (Details) - Outstanding Commitments and Contingent Liabilities (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | ---
Note 14 - Commitments (Details) - Outstanding Commitments and Contingent Liabilities [Line Items] |  |
Outstanding Commitments | $ 102,461 us-gaap_OtherCommitment | $ 125,670 us-gaap_OtherCommitment
Commitments to Extend Credit [Member] |  |
Note 14 - Commitments (Details) - Outstanding Commitments and Contingent Liabilities [Line Items] |  |
Outstanding Commitments | 97,947 us-gaap_OtherCommitment / us-gaap_FinancialInstrumentAxis = us-gaap_CommitmentsToExtendCreditMember | 120,861 us-gaap_OtherCommitment / us-gaap_FinancialInstrumentAxis = us-gaap_CommitmentsToExtendCreditMember
Financial Standby Letter of Credit [Member] |  |
Note 14 - Commitments (Details) - Outstanding Commitments and Contingent Liabilities [Line Items] |  |
Outstanding Commitments | $ 4,514 us-gaap_OtherCommitment / us-gaap_GuaranteeObligationsByNatureAxis = us-gaap_FinancialStandbyLetterOfCreditMember | $ 4,809 us-gaap_OtherCommitment / us-gaap_GuaranteeObligationsByNatureAxis = us-gaap_FinancialStandbyLetterOfCreditMember

X
- Details
Name: | mbcn_Note14CommitmentsDetailsOutstandingCommitmentsandContingentLiabilitiesLineItems
Namespace Prefix: | mbcn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
Name: | us-gaap_OtherCommitment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CommitmentsToExtendCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_FinancialStandbyLetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |