$MBCN
MIDDLEFIELD BANC CORP Stock $mbcn

$mbcn Overview Financials Valuation SEC Filings Company Website

2024 Q4 Form 10-Q Financial Statement

#000143774924034911 Filed on November 13, 2024

Income Statement

Concept	2024 Q4	2024 Q3
Revenue		$25.61M
YoY Change		11.02%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization		$331.0K
YoY Change		-53.38%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense		$10.54M
YoY Change		48.39%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income		$2.711M
YoY Change		-40.27%
Income Tax		$371.0K
% Of Pretax Income		13.68%
Net Earnings		$2.340M
YoY Change		-39.0%
Net Earnings / Revenue		9.14%
Basic Earnings Per Share		$0.29
Diluted Earnings Per Share		$0.29
COMMON SHARES
Basic Shares Outstanding	8.071M	8.071M
Diluted Shares Outstanding		8.087M

Balance Sheet

Concept	2024 Q4	2024 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents		$73.87M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment		$20.53M
YoY Change		-5.44%
Goodwill		$36.36M
YoY Change		0.44%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets		$1.858B
YoY Change		3.58%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable		$16.45M
YoY Change		28.52%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities		$16.45M
YoY Change		28.52%
LONG-TERM LIABILITIES
Long-Term Debt		$11.71M
YoY Change		-1.59%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities		$11.71M
YoY Change		-1.59%
TOTAL LIABILITIES
Total Short-Term Liabilities		$16.45M
Total Long-Term Liabilities		$11.71M
Total Liabilities		$1.647B
YoY Change		2.95%
SHAREHOLDERS EQUITY
Retained Earnings		$106.1M
YoY Change		7.45%
Common Stock		$161.9M
YoY Change		0.37%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$40.91M
YoY Change		2.65%
Treasury Stock Shares
Shareholders Equity		$210.7M
YoY Change
Total Liabilities & Shareholders Equity		$1.858B
YoY Change		3.58%

Cashflow Statement

Concept	2024 Q4	2024 Q3
OPERATING ACTIVITIES
Net Income		$2.340M
YoY Change		-39.0%
Depreciation, Depletion And Amortization		$331.0K
YoY Change		-53.38%
Cash From Operating Activities		$6.006M
YoY Change		115.27%
INVESTING ACTIVITIES
Capital Expenditures		$172.0K
YoY Change		-66.27%
Acquisitions
YoY Change
Other Investing Activities		-$6.778M
YoY Change		-82.04%
Cash From Investing Activities		-$6.950M
YoY Change		-81.83%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities		22.56M
YoY Change		-46.11%
NET CHANGE
Cash From Operating Activities		6.006M
Cash From Investing Activities		-6.950M
Cash From Financing Activities		22.56M
Net Change In Cash		21.62M
YoY Change		237.21%
FREE CASH FLOW
Cash From Operating Activities		$6.006M
Capital Expenditures		$172.0K
Free Cash Flow		$5.834M
YoY Change		155.88%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Registrant Name EntityRegistrantName	Middlefield Banc Corp.
	dei	Entity Central Index Key EntityCentralIndexKey	0000836147
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
CY2024Q3	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2023Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2024Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	25000000
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	25000000
CY2024Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	9950342
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	9930704
CY2024Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	8071032
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	8095252
CY2024Q3	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	1879310
CY2023Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	1835452
CY2024Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2
CY2023Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	43858
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.6
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	164221
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.4
CY2024Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	0	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	usd
CY2023Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	1700000	usd
CY2024Q3	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2024Q3	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2024Q3	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2024Q3	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2024-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-36613
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	OH
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	34-1585111
	dei	Entity Address Address Line1 EntityAddressAddressLine1	15985 East High Street
	dei	Entity Address City Or Town EntityAddressCityOrTown	Middlefield
	dei	Entity Address State Or Province EntityAddressStateOrProvince	OH
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	44062-0035
	dei	City Area Code CityAreaCode	440
	dei	Local Phone Number LocalPhoneNumber	632-1666
	dei	Security12b Title Security12bTitle	Common Stock, Without Par Value
	dei	Trading Symbol TradingSymbol	MBCN
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	true
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2024Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	8071032
CY2024Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	61851000	usd
CY2023Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	56397000	usd
CY2024Q3	us-gaap	Federal Funds Sold FederalFundsSold	12022000	usd
CY2023Q4	us-gaap	Federal Funds Sold FederalFundsSold	4439000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	73873000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	60836000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	169895000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	170779000	usd
CY2024Q3	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	895000	usd
CY2023Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	955000	usd
CY2024Q3	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	249000	usd
CY2023Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	0	usd
CY2024Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	1504531000	usd
CY2023Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	1478130000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	22526000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	21693000	usd
CY2024Q3	us-gaap	Notes Receivable Net NotesReceivableNet	1482005000	usd
CY2023Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1456437000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	20528000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	21339000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	36356000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	36356000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5869000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	6642000	usd
CY2024Q3	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	35049000	usd
CY2023Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	34349000	usd
CY2024Q3	us-gaap	Interest Receivable And Other Assets InterestReceivableAndOtherAssets	32916000	usd
CY2023Q4	us-gaap	Interest Receivable And Other Assets InterestReceivableAndOtherAssets	35190000	usd
CY2024Q3	us-gaap	Assets Assets	1857635000	usd
CY2023Q4	us-gaap	Assets Assets	1822883000	usd
CY2024Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	390933000	usd
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	401384000	usd
CY2024Q3	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	218002000	usd
CY2023Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	205582000	usd
CY2024Q3	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	376619000	usd
CY2023Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	274682000	usd
CY2024Q3	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	199984000	usd
CY2023Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	210639000	usd
CY2024Q3	us-gaap	Time Deposits TimeDeposits	327231000	usd
CY2023Q4	us-gaap	Time Deposits TimeDeposits	334315000	usd
CY2024Q3	us-gaap	Deposits Deposits	1512769000	usd
CY2023Q4	us-gaap	Deposits Deposits	1426602000	usd
CY2024Q3	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	106000000	usd
CY2023Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	163000000	usd
CY2024Q3	us-gaap	Other Borrowings OtherBorrowings	11711000	usd
CY2023Q4	us-gaap	Other Borrowings OtherBorrowings	11862000	usd
CY2024Q3	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	16450000	usd
CY2023Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	15738000	usd
CY2024Q3	us-gaap	Liabilities Liabilities	1646930000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	1617202000	usd
CY2024Q3	us-gaap	Common Stock Value CommonStockValue	161916000	usd
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	161388000	usd
CY2024Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	108000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	0	usd
CY2024Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	106067000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	100237000	usd
CY2024Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-16477000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-16090000	usd
CY2024Q3	us-gaap	Treasury Stock Value TreasuryStockValue	40909000	usd
CY2023Q4	us-gaap	Treasury Stock Value TreasuryStockValue	39854000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	210705000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	205681000	usd
CY2024Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1857635000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1822883000	usd
CY2024Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	23441000	usd
CY2023Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	20899000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	69258000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	59935000	usd
CY2024Q3	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	348000	usd
CY2023Q3	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	300000	usd
	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	1171000	usd
	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	920000	usd
CY2024Q3	us-gaap	Interest Income Federal Funds Sold InterestIncomeFederalFundsSold	143000	usd
CY2023Q3	us-gaap	Interest Income Federal Funds Sold InterestIncomeFederalFundsSold	266000	usd
	us-gaap	Interest Income Federal Funds Sold InterestIncomeFederalFundsSold	417000	usd
	us-gaap	Interest Income Federal Funds Sold InterestIncomeFederalFundsSold	678000	usd
CY2024Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	528000	usd
CY2023Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	477000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	1500000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	1415000	usd
CY2024Q3	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	962000	usd
CY2023Q3	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	980000	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	2900000	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	2938000	usd
CY2024Q3	us-gaap	Dividend Income Operating DividendIncomeOperating	191000	usd
CY2023Q3	us-gaap	Dividend Income Operating DividendIncomeOperating	148000	usd
	us-gaap	Dividend Income Operating DividendIncomeOperating	578000	usd
	us-gaap	Dividend Income Operating DividendIncomeOperating	326000	usd
CY2024Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	25613000	usd
CY2023Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	23070000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	75824000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	66212000	usd
CY2024Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	8792000	usd
CY2023Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	5632000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	24681000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	12472000	usd
CY2024Q3	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	1575000	usd
CY2023Q3	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	1258000	usd
	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	5488000	usd
	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	3373000	usd
CY2024Q3	us-gaap	Interest Expense Other InterestExpenseOther	173000	usd
CY2023Q3	us-gaap	Interest Expense Other InterestExpenseOther	213000	usd
	us-gaap	Interest Expense Other InterestExpenseOther	530000	usd
	us-gaap	Interest Expense Other InterestExpenseOther	539000	usd
CY2024Q3	us-gaap	Interest Expense InterestExpense	10540000	usd
CY2023Q3	us-gaap	Interest Expense InterestExpense	7103000	usd
	us-gaap	Interest Expense InterestExpense	30699000	usd
	us-gaap	Interest Expense InterestExpense	16384000	usd
CY2024Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	15073000	usd
CY2023Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	15967000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	45125000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	49828000	usd
CY2024Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	2234000	usd
CY2023Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1127000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	2185000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	2449000	usd
CY2024Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	12839000	usd
CY2023Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	14840000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	42940000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	47379000	usd
CY2024Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	14000	usd
CY2023Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	48000	usd
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-65000	usd
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-157000	usd
CY2024Q3	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	usd
CY2023Q3	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	usd
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	usd
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	2000	usd
CY2024Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	246000	usd
CY2023Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	207000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	700000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	627000	usd
CY2024Q3	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	56000	usd
CY2023Q3	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	45000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	135000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	74000	usd
CY2024Q3	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	206000	usd
CY2023Q3	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	190000	usd
	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	679000	usd
	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	550000	usd
CY2024Q3	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	0	usd
CY2023Q3	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	110000	usd
	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	67000	usd
	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	290000	usd
CY2024Q3	us-gaap	Noninterest Income NoninterestIncome	1743000	usd
CY2023Q3	us-gaap	Noninterest Income NoninterestIncome	1817000	usd
	us-gaap	Noninterest Income NoninterestIncome	5299000	usd
	us-gaap	Noninterest Income NoninterestIncome	5088000	usd
CY2024Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	6201000	usd
CY2023Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	5994000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	18645000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	17865000	usd
CY2024Q3	us-gaap	Occupancy Net OccupancyNet	627000	usd
CY2023Q3	us-gaap	Occupancy Net OccupancyNet	699000	usd
	us-gaap	Occupancy Net OccupancyNet	1780000	usd
	us-gaap	Occupancy Net OccupancyNet	2054000	usd
CY2024Q3	us-gaap	Equipment Expense EquipmentExpense	203000	usd
CY2023Q3	us-gaap	Equipment Expense EquipmentExpense	297000	usd
	us-gaap	Equipment Expense EquipmentExpense	704000	usd
	us-gaap	Equipment Expense EquipmentExpense	969000	usd
CY2024Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1248000	usd
CY2023Q3	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1209000	usd
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	3665000	usd
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	3415000	usd
CY2024Q3	mbcn	Ohio State Franchise Tax OhioStateFranchiseTax	399000	usd
CY2023Q3	mbcn	Ohio State Franchise Tax OhioStateFranchiseTax	398000	usd
	mbcn	Ohio State Franchise Tax OhioStateFranchiseTax	1193000	usd
	mbcn	Ohio State Franchise Tax OhioStateFranchiseTax	1180000	usd
CY2024Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	255000	usd
CY2023Q3	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	207000	usd
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	762000	usd
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	576000	usd
CY2024Q3	us-gaap	Professional Fees ProfessionalFees	539000	usd
CY2023Q3	us-gaap	Professional Fees ProfessionalFees	545000	usd
	us-gaap	Professional Fees ProfessionalFees	1654000	usd
	us-gaap	Professional Fees ProfessionalFees	1633000	usd
CY2024Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	283000	usd
CY2023Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	414000	usd
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1210000	usd
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1315000	usd
CY2024Q3	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	74000	usd
CY2023Q3	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	24000	usd
	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	117000	usd
	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	73000	usd
CY2024Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	257000	usd
CY2023Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	265000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	773000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	794000	usd
CY2024Q3	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	0	usd
CY2023Q3	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	195000	usd
	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	99000	usd
	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	390000	usd
CY2024Q3	us-gaap	Noncash Merger Related Costs NoncashMergerRelatedCosts	0	usd
CY2023Q3	us-gaap	Noncash Merger Related Costs NoncashMergerRelatedCosts	22000	usd
	us-gaap	Noncash Merger Related Costs NoncashMergerRelatedCosts	0	usd
	us-gaap	Noncash Merger Related Costs NoncashMergerRelatedCosts	472000	usd
CY2024Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1785000	usd
CY2023Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1849000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	5136000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	5228000	usd
CY2024Q3	us-gaap	Noninterest Expense NoninterestExpense	11871000	usd
CY2023Q3	us-gaap	Noninterest Expense NoninterestExpense	12118000	usd
	us-gaap	Noninterest Expense NoninterestExpense	35738000	usd
	us-gaap	Noninterest Expense NoninterestExpense	35964000	usd
CY2024Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2711000	usd
CY2023Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	4539000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	12501000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	16503000	usd
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	371000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	703000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1830000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2678000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	2340000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	3836000	usd
	us-gaap	Net Income Loss NetIncomeLoss	10671000	usd
	us-gaap	Net Income Loss NetIncomeLoss	13825000	usd
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.29
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.47
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.32
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.71
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.29
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.47
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.32
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.7
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	2340000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	3836000	usd
	us-gaap	Net Income Loss NetIncomeLoss	10671000	usd
	us-gaap	Net Income Loss NetIncomeLoss	13825000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	3786000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-7336000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-490000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-5420000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	795000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-1540000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-103000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-1138000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2991000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-5796000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-387000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4282000	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5331000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1960000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	10284000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	9543000	usd
CY2024Q2	us-gaap	Stockholders Equity StockholdersEquity	206788000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	2340000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2991000	usd
CY2024Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	93000	usd
CY2024Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	108000	usd
CY2024Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1615000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	210705000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	197227000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	3836000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-5796000	usd
CY2023Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	101000	usd
CY2023Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1619000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	193749000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	205681000	usd
	us-gaap	Net Income Loss NetIncomeLoss	10671000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-387000	usd
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	528000	usd
	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	108000	usd
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1055000	usd
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	4841000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	210705000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	197691000	usd
	us-gaap	Net Income Loss NetIncomeLoss	13825000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4282000	usd
	mbcn	Stock Authorization Fee Amount StockAuthorizationFeeAmount	37000	usd
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	320000	usd
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	4506000	usd
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	4841000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	193749000	usd
	us-gaap	Net Income Loss NetIncomeLoss	10671000	usd
	us-gaap	Net Income Loss NetIncomeLoss	13825000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	2185000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	2449000	usd
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-65000	usd
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-157000	usd
	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	117000	usd
	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	73000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-421000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-453000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	773000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	794000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	-47000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	-100000	usd
	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	482000	usd
	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	78000	usd
	mbcn	Proceeds Payment For Origination Loan Mortgage Heldforsale ProceedsPaymentForOriginationLoanMortgageHeldforsale	-5638000	usd
	mbcn	Proceeds Payment For Origination Loan Mortgage Heldforsale ProceedsPaymentForOriginationLoanMortgageHeldforsale	-4549000	usd
	mbcn	Proceeds From Payments For Sale Loan Mortgage Heldforsale ProceedsFromPaymentsForSaleLoanMortgageHeldforsale	5524000	usd
	mbcn	Proceeds From Payments For Sale Loan Mortgage Heldforsale ProceedsFromPaymentsForSaleLoanMortgageHeldforsale	3991000	usd
	mbcn	Gain Loss On Sales Of Loans Excluding Student Loans Net GainLossOnSalesOfLoansExcludingStudentLoansNet	135000	usd
	mbcn	Gain Loss On Sales Of Loans Excluding Student Loans Net GainLossOnSalesOfLoansExcludingStudentLoansNet	74000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	700000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	627000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-45000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	485000	usd
	mbcn	Gains Losses On Sales Of Other Real Estate Gross GainsLossesOnSalesOfOtherRealEstateGross	-0	usd
	mbcn	Gains Losses On Sales Of Other Real Estate Gross GainsLossesOnSalesOfOtherRealEstateGross	2000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-265000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	1002000	usd
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	3950000	usd
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	1607000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	3078000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	2941000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	14809000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	14617000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1871000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1680000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1898000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2000000	usd
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	5000	usd
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	200000	usd
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	26460000	usd
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	99059000	usd
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	0	usd
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	31000	usd
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	usd
	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	289000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	368000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1058000	usd
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	723000	usd
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	5507000	usd
	mbcn	Redemption Of Restricted Stock RedemptionOfRestrictedStock	2691000	usd
	mbcn	Redemption Of Restricted Stock RedemptionOfRestrictedStock	4237000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-24892000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-101587000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	86167000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	55157000	usd
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-57000000	usd
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	53000000	usd
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	151000	usd
	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	147000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1055000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	4506000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	4841000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	4841000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	23120000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	98663000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	13037000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	11693000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	60836000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	53809000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	73873000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	65502000	usd
	us-gaap	Interest Paid Net InterestPaidNet	26749000	usd
	us-gaap	Interest Paid Net InterestPaidNet	14777000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	2130000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	2168000	usd
	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	0	usd
	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	4462000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	1500000	usd
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt; text-align: justify;"><b>Reclassification of Comparative Amounts</b></p> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt; text-align: justify;"> </p> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt; text-align: justify;">Certain comparative amounts for prior years have been reclassified to conform to current-year presentations. Such reclassifications did <em style="font: inherit;">not</em> affect net income or retained earnings.</p> <p style="font-family: "Times New Roman"; font-size: 10pt; font-variant: normal; margin: 0pt; text-align: justify;"> </p>
	mbcn	Revenue From Interest Income And Noninterest Income Percent RevenueFromInterestIncomeAndNoninterestIncomePercent	0.945	pure
CY2024Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	14000	usd
CY2023Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	48000	usd
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-65000	usd
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-157000	usd
CY2024Q3	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	usd
CY2023Q3	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	usd
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	0	usd
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	2000	usd
CY2024Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	246000	usd
CY2023Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	207000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	700000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	627000	usd
CY2024Q3	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	56000	usd
CY2023Q3	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	45000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	135000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	74000	usd
CY2024Q3	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	206000	usd
CY2023Q3	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	190000	usd
	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	679000	usd
	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	550000	usd
CY2024Q3	mbcn	Miscellaneous Fee Income MiscellaneousFeeIncome	106000	usd
CY2023Q3	mbcn	Miscellaneous Fee Income MiscellaneousFeeIncome	98000	usd
	mbcn	Miscellaneous Fee Income MiscellaneousFeeIncome	301000	usd
	mbcn	Miscellaneous Fee Income MiscellaneousFeeIncome	285000	usd
CY2024Q3	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	0	usd
CY2023Q3	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	110000	usd
	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	67000	usd
	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	290000	usd
CY2024Q3	us-gaap	Noninterest Income Other NoninterestIncomeOther	156000	usd
CY2023Q3	us-gaap	Noninterest Income Other NoninterestIncomeOther	165000	usd
	us-gaap	Noninterest Income Other NoninterestIncomeOther	643000	usd
	us-gaap	Noninterest Income Other NoninterestIncomeOther	537000	usd
CY2024Q3	us-gaap	Noninterest Income NoninterestIncome	1743000	usd
CY2023Q3	us-gaap	Noninterest Income NoninterestIncome	1817000	usd
	us-gaap	Noninterest Income NoninterestIncome	5299000	usd
	us-gaap	Noninterest Income NoninterestIncome	5088000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	9950342
CY2023Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	9927946
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	9946146
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	9924597
CY2024Q3	us-gaap	Weighted Average Number Of Shares Treasury Stock WeightedAverageNumberOfSharesTreasuryStock	1879310
CY2023Q3	us-gaap	Weighted Average Number Of Shares Treasury Stock WeightedAverageNumberOfSharesTreasuryStock	1835452
	us-gaap	Weighted Average Number Of Shares Treasury Stock WeightedAverageNumberOfSharesTreasuryStock	1869706
	us-gaap	Weighted Average Number Of Shares Treasury Stock WeightedAverageNumberOfSharesTreasuryStock	1818080
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8071032
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8092494
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8076440
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8106517
CY2024Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	15840
CY2023Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	8812
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	15840
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	8812
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	8086872
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	8101306
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	8092280
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	8115329
CY2024Q3	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	1879310
CY2023Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	43858
CY2023Q3	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	1835452
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4282000	usd
	mbcn	Estimated Selling Costs Of Impaired Loans EstimatedSellingCostsOfImpairedLoans	1100000	usd
CY2023	mbcn	Estimated Selling Costs Of Impaired Loans EstimatedSellingCostsOfImpairedLoans	843000	usd
CY2024Q3	mbcn	Mandatorily Redeemable Securities MandatorilyRedeemableSecurities	8000000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	190752000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	225000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	21082000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	169895000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	1500000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	191146000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	223000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	20590000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	170779000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	1600000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	521000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	522000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	5942000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	5786000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	57041000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	54581000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	127248000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	109006000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	190752000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	169895000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	9193000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	392000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	137681000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	20690000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	146874000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	21082000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	2575000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	17000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	141556000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	20573000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	144131000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	20590000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	17	pure
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	165	pure
CY2024Q3	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	895000	usd
CY2023Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	955000	usd
CY2024Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	14000	usd
CY2023Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	48000	usd
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-65000	usd
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-157000	usd
CY2024Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	1504531000	usd
CY2023Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	1478130000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	22526000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	21693000	usd
CY2024Q3	us-gaap	Notes Receivable Net NotesReceivableNet	1482005000	usd
CY2023Q4	us-gaap	Notes Receivable Net NotesReceivableNet	1456437000	usd
CY2024Q3	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	5300000	usd
CY2023Q4	us-gaap	Financing Receivable Accrued Interest After Allowance For Credit Loss FinancingReceivableAccruedInterestAfterAllowanceForCreditLoss	5500000	usd
CY2024Q3	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	8400000	usd
CY2023Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	9200000	usd
CY2024Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	21795000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1426000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	44000	usd
CY2024Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2113000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	22526000	usd
CY2023Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	20591000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	41000	usd
CY2023Q3	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	379000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	20986000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	21693000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1439000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	154000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	2118000	usd
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	22526000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	14438000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	301000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	214000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	1253000	usd
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	20986000	usd
	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	833000	usd
	mbcn	Financing Receivable Allowance For Credit Loss Period Increase Decrease Percentage FinancingReceivableAllowanceForCreditLossPeriodIncreaseDecreasePercentage	0.038	pure
CY2024Q3	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	731000	usd
CY2024Q3	mbcn	Financing Receivable Allowance For Credit Loss Period Increase Decrease Percentage FinancingReceivableAllowanceForCreditLossPeriodIncreaseDecreasePercentage	0.034	pure
CY2023Q3	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	395000	usd
CY2023Q3	mbcn	Financing Receivable Allowance For Credit Loss Period Increase Decrease Percentage FinancingReceivableAllowanceForCreditLossPeriodIncreaseDecreasePercentage	0.019	pure
CY2024Q3	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	106185000	usd
CY2024Q3	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	264357000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	270117000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	192413000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	115682000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	337697000	usd
CY2024Q3	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	218080000	usd
CY2024Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	1504531000	usd
CY2024Q3	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	106185000	usd
CY2024Q3	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	264357000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	270117000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	192413000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	115682000	usd
CY2024Q3	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	337697000	usd
CY2024Q3	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	218080000	usd
CY2024Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	1504531000	usd
CY2023Q4	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	241600000	usd
CY2023Q4	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	290633000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	207871000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	126649000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	85500000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	310143000	usd
CY2023Q4	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	215734000	usd
CY2023Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	1478130000	usd
CY2023Q4	us-gaap	Financing Receivable Originated In Current Fiscal Year FinancingReceivableOriginatedInCurrentFiscalYear	241600000	usd
CY2023Q4	us-gaap	Financing Receivable Originated In Fiscal Year Before Latest Fiscal Year FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear	290633000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Two Years Before Latest Fiscal Year FinancingReceivableOriginatedTwoYearsBeforeLatestFiscalYear	207871000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Three Years Before Latest Fiscal Year FinancingReceivableOriginatedThreeYearsBeforeLatestFiscalYear	126649000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Four Years Before Latest Fiscal Year FinancingReceivableOriginatedFourYearsBeforeLatestFiscalYear	85500000	usd
CY2023Q4	us-gaap	Financing Receivable Originated Five Or More Years Before Latest Fiscal Year FinancingReceivableOriginatedFiveOrMoreYearsBeforeLatestFiscalYear	310143000	usd
CY2023Q4	us-gaap	Financing Receivable Revolving FinancingReceivableRevolving	215734000	usd
CY2023Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	1478130000	usd
CY2024Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	1504531000	usd
CY2024Q3	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	22666000	usd
CY2024Q3	mbcn	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	7380000	usd
CY2024Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	30046000	usd
CY2024Q3	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	32000	usd
CY2023Q4	us-gaap	Financing Receivable Nonaccrual No Allowance FinancingReceivableNonaccrualNoAllowance	4687000	usd
CY2023Q4	mbcn	Financing Receivable Nonaccrual With Allowance FinancingReceivableNonaccrualWithAllowance	6190000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	10877000	usd
CY2023Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	0	usd
CY2024Q3	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	852000	usd
	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	1200000	usd
CY2023Q3	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	211000	usd
	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	414000	usd
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	17808000	usd
	us-gaap	Financing Receivable Modification To Total Financing Receivables Percent FinancingReceivableModificationToTotalFinancingReceivablesPercent	0.012	pure
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	21817000	usd
	us-gaap	Financing Receivable Modification To Total Financing Receivables Percent FinancingReceivableModificationToTotalFinancingReceivablesPercent	0.016	pure
CY2024Q3	mbcn	Financing Receivable Troubled Debt Restructuring Subsequent Default Number Of Contracts FinancingReceivableTroubledDebtRestructuringSubsequentDefaultNumberOfContracts	0	pure
CY2024Q3	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	381000	usd
CY2023Q4	us-gaap	Mortgage Loans In Process Of Foreclosure Amount MortgageLoansInProcessOfForeclosureAmount	228000	usd
CY2024Q3	us-gaap	Other Commitment OtherCommitment	481678000	usd
CY2023Q4	us-gaap	Other Commitment OtherCommitment	424836000	usd
CY2024Q3	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	1900000	usd
CY2023Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	2000000	usd
	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	38000	usd
CY2024Q3	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	1700000	usd
CY2024Q3	mbcn	Insurance Policy Aggregate Limit InsurancePolicyAggregateLimit	3000000	usd
CY2024Q3	mbcn	Insurance Policy Deductible InsurancePolicyDeductible	50000	usd
CY2023Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	24185000	usd
CY2022Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	2057000	usd
	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	2965000	usd
CY2023	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	23922000	usd
	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	1063000	usd
CY2023	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	1794000	usd
CY2024Q3	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	26087000	usd
CY2023Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	24185000	usd
CY2024Q3	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	29000000	usd
CY2023Q4	us-gaap	Related Party Deposit Liabilities RelatedPartyDepositLiabilities	33100000	usd

Files In Submission

Name	View Source	Status
mbcn-20240930_cal.xml	Edgar Link	unprocessable
0001437749-24-034911-index-headers.html	Edgar Link	pending
0001437749-24-034911-index.html	Edgar Link	pending
0001437749-24-034911.txt	Edgar Link	pending
0001437749-24-034911-xbrl.zip	Edgar Link	pending
ex_722288.htm	Edgar Link	pending
ex_722289.htm	Edgar Link	pending
ex_722290.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
mbcn-20240930.xsd	Edgar Link	pending
mbcn20230630_10qimg002.jpg	Edgar Link	pending
mbcn20240930c_10q.htm	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
mbcn-20240930_def.xml	Edgar Link	unprocessable
mbcn-20240930_lab.xml	Edgar Link	unprocessable
mbcn-20240930_pre.xml	Edgar Link	unprocessable
mbcn20240930c_10q_htm.xml	Edgar Link	completed
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
smlogo.jpg	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$MBCN
MIDDLEFIELD BANC CORP Stock $mbcn

2024 Q4 Form 10-Q Financial Statement

#000143774924034911 Filed on November 13, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MBCN MIDDLEFIELD BANC CORP Stock $mbcn

2024 Q4 Form 10-Q Financial Statement

#000143774924034911 Filed on November 13, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MBCN
MIDDLEFIELD BANC CORP Stock $mbcn