$MRBK
Meridian Corp Stock $mrbk

$mrbk Overview Financials Valuation SEC Filings Company Website

2022 Q4 Form 10-Q Financial Statement

#000175073522000080 Filed on November 09, 2022

Income Statement

Concept	2022 Q4	2022 Q3
Revenue		$22.96M
YoY Change		25.41%
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
YoY Change
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense		$4.932M
YoY Change		140.7%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$5.725M	$7.463M
YoY Change	-42.11%	-39.33%
Income Tax	$1.164M	$1.665M
% Of Pretax Income	20.33%	22.31%
Net Earnings	$4.561M	$5.798M
YoY Change	-40.92%	-38.57%
Net Earnings / Revenue		25.25%
Basic Earnings Per Share		$0.99
Diluted Earnings Per Share	$0.39	$956.9K
COMMON SHARES
Basic Shares Outstanding	5.801M shares	5.868M shares
Diluted Shares Outstanding		6.060M shares

Balance Sheet

Concept	2022 Q4	2022 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$38.39M	$31.36M
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	$13.35M	$12.84M
YoY Change	13.07%	55.73%
Goodwill	$899.0K	$899.0K
YoY Change	0.0%	0.0%
Intangibles	$3.175M	$3.226M
YoY Change	-6.04%	-5.95%
Long-Term Investments	$2.086M	$2.092M
YoY Change	-13.08%	109.2%
Other Assets	$3.936M	$5.722M
YoY Change	181.14%	281.47%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$2.062B	$1.922B
YoY Change	20.36%	9.05%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.389M	$1.154M
YoY Change		64.86%
Accrued Expenses	$8.900M	$9.400M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$113.1M	$23.46M
YoY Change	173.67%	5.3%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$133.4M	$10.55M
YoY Change	222.93%	1407.71%
LONG-TERM LIABILITIES
Long-Term Debt	$40.35M	$64.06M
YoY Change	-0.38%	57.0%
Other Long-Term Liabilities	$22.75M	$32.00M
YoY Change	14.91%	39.74%
Total Long-Term Liabilities	$63.10M	$96.06M
YoY Change	4.64%	50.79%
TOTAL LIABILITIES
Total Short-Term Liabilities	$133.4M	$10.55M
Total Long-Term Liabilities	$63.10M	$96.06M
Total Liabilities	$1.909B	$1.771B
YoY Change	23.31%	10.39%
SHAREHOLDERS EQUITY
Retained Earnings	$95.82M	$92.41M
YoY Change	12.84%	17.85%
Common Stock	$13.16M	$6.566M
YoY Change	101.32%	0.92%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$21.82M	$18.03M
YoY Change	146.29%	124.71%
Treasury Stock Shares
Shareholders Equity	$153.3M	$151.2M
YoY Change
Total Liabilities & Shareholders Equity	$2.062B	$1.922B
YoY Change	20.36%	9.05%

Cashflow Statement

Concept	2022 Q4	2022 Q3
OPERATING ACTIVITIES
Net Income	$4.561M	$5.798M
YoY Change	-40.92%	-38.57%
Depreciation, Depletion And Amortization
YoY Change
Cash From Operating Activities	$21.02M	$27.98M
YoY Change	-45.7%	35.15%
INVESTING ACTIVITIES
Capital Expenditures	$887.0K	-$992.0K
YoY Change	-122.74%	148.0%
Acquisitions
YoY Change
Other Investing Activities	-$145.7M	-$95.35M
YoY Change	607.28%	271.02%
Cash From Investing Activities	-$146.6M	-$96.34M
YoY Change	495.88%	270.55%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	132.6M	62.64M
YoY Change	-346.47%	50.93%
NET CHANGE
Cash From Operating Activities	21.02M	27.98M
Cash From Investing Activities	-146.6M	-96.34M
Cash From Financing Activities	132.6M	62.64M
Net Change In Cash	7.030M	-5.732M
YoY Change	-117.71%	-115.83%
FREE CASH FLOW
Cash From Operating Activities	$21.02M	$27.98M
Capital Expenditures	$887.0K	-$992.0K
Free Cash Flow	$20.13M	$28.97M
YoY Change	-52.75%	37.29%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Registrant Name EntityRegistrantName	Meridian Corp
	dei	Entity Central Index Key EntityCentralIndexKey	0001750735
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2022-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	000-55983
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	PA
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	83-1561918
	dei	Entity Address Address Line1 EntityAddressAddressLine1	9 Old Lincoln Highway
	dei	Entity Address City Or Town EntityAddressCityOrTown	Malvern
	dei	Entity Address State Or Province EntityAddressStateOrProvince	PA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	19355
	dei	City Area Code CityAreaCode	484
	dei	Local Phone Number LocalPhoneNumber	568-5000
	dei	Security12b Title Security12bTitle	Common Stock, $1 par value
	dei	Trading Symbol TradingSymbol	MRBK
	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	Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	true
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	true
	dei	Entity Ex Transition Period EntityExTransitionPeriod	false
	dei	Entity Shell Company EntityShellCompany	false
CY2022Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	5800526	shares
CY2022Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	12114000	usd
CY2021Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	3966000	usd
CY2022Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	20774000	usd
CY2021Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	19514000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	32888000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	23480000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	143581000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	158387000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	127999000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	159302000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	32323000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	6591000	usd
CY2022Q3	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	37922000	usd
CY2021Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	6372000	usd
CY2022Q3	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	2092000	usd
CY2021Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	2354000	usd
CY2022Q3	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	33800000	usd
CY2021Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	80882000	usd
CY2022Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1610349000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss	1386457000	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	18974000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	18758000	usd
CY2022Q3	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	1591375000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest After Allowance For Credit Loss FinancingReceivableExcludingAccruedInterestAfterAllowanceForCreditLoss	1367699000	usd
CY2022Q3	us-gaap	Restricted Investments RestrictedInvestments	5217000	usd
CY2021Q4	us-gaap	Restricted Investments RestrictedInvestments	5117000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	12835000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	11806000	usd
CY2022Q3	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	22916000	usd
CY2021Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	22503000	usd
CY2022Q3	us-gaap	Interest Receivable InterestReceivable	6008000	usd
CY2021Q4	us-gaap	Interest Receivable InterestReceivable	5009000	usd
CY2022Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	5722000	usd
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1413000	usd
CY2022Q3	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	12807000	usd
CY2021Q4	us-gaap	Servicing Asset At Amortized Value ServicingAssetAtAmortizedValue	12765000	usd
CY2022Q3	us-gaap	Goodwill Goodwill	899000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	899000	usd
CY2022Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	3226000	usd
CY2021Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	3379000	usd
CY2022Q3	us-gaap	Other Assets OtherAssets	26218000	usd
CY2021Q4	us-gaap	Other Assets OtherAssets	10463000	usd
CY2022Q3	us-gaap	Assets Assets	1921924000	usd
CY2021Q4	us-gaap	Assets Assets	1713443000	usd
CY2022Q3	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	290169000	usd
CY2021Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	274528000	usd
CY2022Q3	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1383384000	usd
CY2021Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1171885000	usd
CY2022Q3	us-gaap	Deposits Deposits	1673553000	usd
CY2021Q4	us-gaap	Deposits Deposits	1446413000	usd
CY2022Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	23458000	usd
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	41344000	usd
CY2022Q3	us-gaap	Subordinated Debt SubordinatedDebt	40597000	usd
CY2021Q4	us-gaap	Subordinated Debt SubordinatedDebt	40508000	usd
CY2022Q3	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	1154000	usd
	mrbk	Interest Income Cash And Cash Equivalents InterestIncomeCashAndCashEquivalents	25000	usd
CY2021Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	31000	usd
CY2022Q3	us-gaap	Other Liabilities OtherLiabilities	32001000	usd
CY2021Q4	us-gaap	Other Liabilities OtherLiabilities	19787000	usd
CY2022Q3	us-gaap	Liabilities Liabilities	1770763000	usd
CY2021Q4	us-gaap	Liabilities Liabilities	1548083000	usd
CY2022Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2022Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	25000000	shares
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	25000000	shares
CY2022Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	6566356	shares
CY2022Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	6566356	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	6534587	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	6534587	shares
CY2022Q3	us-gaap	Common Stock Value CommonStockValue	6566000	usd
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	6535000	usd
CY2022Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	84848000	usd
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	83663000	usd
CY2022Q3	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	721927	shares
CY2021Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	426693	shares
CY2022Q3	us-gaap	Treasury Stock Value TreasuryStockValue	18033000	usd
CY2021Q4	us-gaap	Treasury Stock Value TreasuryStockValue	8860000	usd
CY2022Q3	us-gaap	Unearned Esop Shares UnearnedESOPShares	1602000	usd
CY2021Q4	us-gaap	Unearned Esop Shares UnearnedESOPShares	1602000	usd
CY2022Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	92405000	usd
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	84916000	usd
CY2022Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-13023000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	708000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	151161000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	165360000	usd
CY2022Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1921924000	usd
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1713443000	usd
CY2022Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	21848000	usd
CY2021Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	17626000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	58187000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	51287000	usd
CY2022Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	648000	usd
CY2021Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	357000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	1599000	usd
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	1076000	usd
CY2022Q3	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	369000	usd
CY2021Q3	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	306000	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	1015000	usd
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	886000	usd
CY2022Q3	mrbk	Interest Income Cash And Cash Equivalents InterestIncomeCashAndCashEquivalents	93000	usd
CY2021Q3	mrbk	Interest Income Cash And Cash Equivalents InterestIncomeCashAndCashEquivalents	17000	usd
	mrbk	Interest Income Cash And Cash Equivalents InterestIncomeCashAndCashEquivalents	157000	usd
CY2022Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	22958000	usd
CY2021Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	18306000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	60958000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	53274000	usd
CY2022Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	4075000	usd
CY2021Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	1327000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	7182000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	4261000	usd
CY2022Q3	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	857000	usd
CY2021Q3	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	722000	usd
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	2166000	usd
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	2224000	usd
CY2022Q3	us-gaap	Interest Expense InterestExpense	4932000	usd
CY2021Q3	us-gaap	Interest Expense InterestExpense	2049000	usd
	us-gaap	Interest Expense InterestExpense	9348000	usd
	us-gaap	Interest Expense InterestExpense	6485000	usd
CY2022Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	18026000	usd
CY2021Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	16257000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	51610000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	46789000	usd
CY2022Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	526000	usd
CY2021Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	597000	usd
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1743000	usd
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1292000	usd
CY2022Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	17500000	usd
CY2021Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	15660000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	49867000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	45497000	usd
CY2022Q3	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	7329000	usd
CY2021Q3	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	18726000	usd
	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	21367000	usd
	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	62293000	usd
CY2022Q3	mrbk	Sba Income Net Amortization SbaIncomeNetAmortization	989000	usd
CY2021Q3	mrbk	Sba Income Net Amortization SbaIncomeNetAmortization	2688000	usd
	mrbk	Sba Income Net Amortization SbaIncomeNetAmortization	3946000	usd
	mrbk	Sba Income Net Amortization SbaIncomeNetAmortization	5423000	usd
CY2022Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	138000	usd
CY2021Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	93000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	413000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	224000	usd
CY2022Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	127000	usd
CY2021Q3	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-339000	usd
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-713000	usd
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-3431000	usd
CY2022Q3	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	-237000	usd
CY2021Q3	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	-532000	usd
	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	-1094000	usd
	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	-3164000	usd
CY2022Q3	mrbk	Increase Decrease In Loans Held For Investments IncreaseDecreaseInLoansHeldForInvestments	-886000	usd
CY2021Q3	mrbk	Increase Decrease In Loans Held For Investments IncreaseDecreaseInLoansHeldForInvestments	37000	usd
	mrbk	Increase Decrease In Loans Held For Investments IncreaseDecreaseInLoansHeldForInvestments	-2499000	usd
	mrbk	Increase Decrease In Loans Held For Investments IncreaseDecreaseInLoansHeldForInvestments	-24000	usd
CY2022Q3	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	399000	usd
CY2021Q3	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	-1189000	usd
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	4941000	usd
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	2397000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	usd
CY2021Q3	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	314000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	usd
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	362000	usd
CY2022Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1219000	usd
CY2021Q3	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1057000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	3605000	usd
	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	3192000	usd
CY2022Q3	us-gaap	Noninterest Income NoninterestIncome	10224000	usd
CY2021Q3	us-gaap	Noninterest Income NoninterestIncome	22122000	usd
	us-gaap	Noninterest Income NoninterestIncome	33728000	usd
	us-gaap	Noninterest Income NoninterestIncome	70902000	usd
CY2022Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	13360000	usd
CY2021Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	19472000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	41585000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	61824000	usd
CY2022Q3	us-gaap	Occupancy Net OccupancyNet	1191000	usd
CY2021Q3	us-gaap	Occupancy Net OccupancyNet	1133000	usd
	us-gaap	Occupancy Net OccupancyNet	3619000	usd
	us-gaap	Occupancy Net OccupancyNet	3460000	usd
CY2022Q3	us-gaap	Professional Fees ProfessionalFees	899000	usd
CY2021Q3	us-gaap	Professional Fees ProfessionalFees	873000	usd
	us-gaap	Professional Fees ProfessionalFees	2659000	usd
	us-gaap	Professional Fees ProfessionalFees	2629000	usd
CY2022Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1165000	usd
CY2021Q3	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1089000	usd
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	3340000	usd
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	2795000	usd
CY2022Q3	mrbk	Data Processing DataProcessing	574000	usd
CY2021Q3	mrbk	Data Processing DataProcessing	530000	usd
	mrbk	Data Processing DataProcessing	1633000	usd
	mrbk	Data Processing DataProcessing	1666000	usd
CY2022Q3	mrbk	Information Technology InformationTechnology	868000	usd
CY2021Q3	mrbk	Information Technology InformationTechnology	476000	usd
	mrbk	Information Technology InformationTechnology	2306000	usd
	mrbk	Information Technology InformationTechnology	1365000	usd
CY2022Q3	mrbk	Pennsylvania Bank Shares Tax Expense PennsylvaniaBankSharesTaxExpense	202000	usd
CY2021Q3	mrbk	Pennsylvania Bank Shares Tax Expense PennsylvaniaBankSharesTaxExpense	152000	usd
	mrbk	Pennsylvania Bank Shares Tax Expense PennsylvaniaBankSharesTaxExpense	612000	usd
	mrbk	Pennsylvania Bank Shares Tax Expense PennsylvaniaBankSharesTaxExpense	478000	usd
CY2022Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2002000	usd
CY2021Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1756000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	5646000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	5773000	usd
CY2022Q3	us-gaap	Noninterest Expense NoninterestExpense	20261000	usd
CY2021Q3	us-gaap	Noninterest Expense NoninterestExpense	25481000	usd
	us-gaap	Noninterest Expense NoninterestExpense	61400000	usd
	us-gaap	Noninterest Expense NoninterestExpense	79990000	usd
CY2022Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7463000	usd
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	12301000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	22195000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	36409000	usd
CY2022Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1665000	usd
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2863000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4927000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8543000	usd
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	5798000	usd
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	9438000	usd
	us-gaap	Net Income Loss NetIncomeLoss	17268000	usd
	us-gaap	Net Income Loss NetIncomeLoss	27866000	usd
CY2022Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.99
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.56
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.90
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.62
CY2022Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.96
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.52
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.80
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.49
CY2022Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5868000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	6045000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5964000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	6033000	shares
CY2022Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6060000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6231000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6172000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6201000	shares
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	5798000	usd
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	9438000	usd
	us-gaap	Net Income Loss NetIncomeLoss	17268000	usd
	us-gaap	Net Income Loss NetIncomeLoss	27866000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-1129000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-312000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-3694000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-475000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-3910000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1021000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-12760000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1490000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	usd
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-71000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-1000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-83000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	usd
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	243000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	9000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	279000	usd
CY2022Q3	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossTax	8000	usd
CY2021Q3	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossTax	0	usd
	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossTax	-293000	usd
	us-gaap	Oci Debt Securities Available For Sale Transfer To Held To Maturity Adjustment From Aoci For Amortization Of Gain Loss Tax OciDebtSecuritiesAvailableForSaleTransferToHeldToMaturityAdjustmentFromAociForAmortizationOfGainLossTax	0	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	37000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	0	usd
	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	-962000	usd
	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	0	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-1121000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-383000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-3989000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-558000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3873000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-1264000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-13731000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-1769000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3873000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1264000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-13731000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1769000	usd
CY2022Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1925000	usd
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	8174000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3537000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	26097000	usd
CY2022Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	156087000	usd
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	5798000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-3873000	usd
CY2022Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.20
CY2022Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1208000	usd
CY2022Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	197849	shares
CY2022Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	6137000	usd
CY2022Q3	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	117000	usd
CY2022Q3	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	377000	usd
CY2022Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	151161000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	165360000	usd
	us-gaap	Net Income Loss NetIncomeLoss	17268000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-13731000	usd
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	158416000	usd
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.60
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	9779000	usd
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	295234	shares
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	9173000	usd
	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	485000	usd
	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	731000	usd
CY2022Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	151161000	usd
CY2021Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	152885000	usd
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	9438000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-1264000	usd
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.125
CY2021Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	769000	usd
CY2021Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	78491	shares
CY2021Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	2197000	usd
CY2021Q3	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	180000	usd
CY2021Q3	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	143000	usd
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	141622000	usd
	us-gaap	Net Income Loss NetIncomeLoss	27866000	usd
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-1769000	usd
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.375
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	8468000	usd
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	78491	shares
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	2197000	usd
	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	571000	usd
	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	791000	usd
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	158416000	usd
	us-gaap	Profit Loss ProfitLoss	17268000	usd
	us-gaap	Profit Loss ProfitLoss	27866000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	usd
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	362000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-668000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-991000	usd
	mrbk	Depreciation And Amortization Including Amortization Of Loan Fees DepreciationAndAmortizationIncludingAmortizationOfLoanFees	-1343000	usd
	mrbk	Depreciation And Amortization Including Amortization Of Loan Fees DepreciationAndAmortizationIncludingAmortizationOfLoanFees	-4677000	usd
	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	1743000	usd
	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	1292000	usd
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	89000	usd
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	88000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	731000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	791000	usd
	us-gaap	Increase Decrease In Derivative Assets And Liabilities IncreaseDecreaseInDerivativeAssetsAndLiabilities	-713000	usd
	us-gaap	Increase Decrease In Derivative Assets And Liabilities IncreaseDecreaseInDerivativeAssetsAndLiabilities	-3431000	usd
	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	-1094000	usd
	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	-3164000	usd
	mrbk	Increase Decrease In Loans Held For Investment IncreaseDecreaseInLoansHeldForInvestment	-2499000	usd
	mrbk	Increase Decrease In Loans Held For Investment IncreaseDecreaseInLoansHeldForInvestment	-24000	usd
	mrbk	Amortization Of Mortgage Servicing Rights Ms Rs And Net Impairment Of Servicing Rights AmortizationOfMortgageServicingRightsMSRsAndNetImpairmentOfServicingRights	1753000	usd
	mrbk	Amortization Of Mortgage Servicing Rights Ms Rs And Net Impairment Of Servicing Rights AmortizationOfMortgageServicingRightsMSRsAndNetImpairmentOfServicingRights	707000	usd
	mrbk	Sba Income SbaIncome	3946000	usd
	mrbk	Sba Income SbaIncome	5423000	usd
	mrbk	Proceeds From Sales Of Loans ProceedsFromSalesOfLoans	863056000	usd
	mrbk	Proceeds From Sales Of Loans ProceedsFromSalesOfLoans	2027443000	usd
	mrbk	Payments For Loans Originated For Sale PaymentsForLoansOriginatedForSale	794541000	usd
	mrbk	Payments For Loans Originated For Sale PaymentsForLoansOriginatedForSale	1864132000	usd
	mrbk	Mortgage Banking Income MortgageBankingIncome	21367000	usd
	mrbk	Mortgage Banking Income MortgageBankingIncome	62293000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	999000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-402000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1675000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2648000	usd
	mrbk	Gain Loss From Investment In Life Insurance GainLossFromInvestmentInLifeInsurance	413000	usd
	mrbk	Gain Loss From Investment In Life Insurance GainLossFromInvestmentInLifeInsurance	224000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-219000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-817000	usd
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	1123000	usd
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-490000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-2579000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	1299000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	63655000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	126432000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	8662000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	6173000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	0	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	20855000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	22176000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	52468000	usd
	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	540000	usd
	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	0	usd
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	5500000	usd
	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0	usd
	us-gaap	Increase Decrease Of Restricted Investments IncreaseDecreaseOfRestrictedInvestments	100000	usd
	us-gaap	Increase Decrease Of Restricted Investments IncreaseDecreaseOfRestrictedInvestments	-3699000	usd
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	225967000	usd
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	82711000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2020000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1496000	usd
	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	usd
	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	10000000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-246561000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-115948000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	227140000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	197712000	usd
	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	0	usd
	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-3187000	usd
	us-gaap	Repayments Of Short Term Debt Maturing In More Than Three Months RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths	17886000	usd
	us-gaap	Repayments Of Short Term Debt Maturing In More Than Three Months RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths	81397000	usd
	us-gaap	Proceeds From Repayments Of Secured Debt ProceedsFromRepaymentsOfSecuredDebt	0	usd
	us-gaap	Proceeds From Repayments Of Secured Debt ProceedsFromRepaymentsOfSecuredDebt	-87141000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	9173000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2197000	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	9779000	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	8468000	usd
	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	485000	usd
	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	571000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	190787000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	15893000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	7881000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	26377000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	23480000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	36744000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	31361000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	63121000	usd
	us-gaap	Interest Paid Net InterestPaidNet	8225000	usd
	us-gaap	Interest Paid Net InterestPaidNet	6976000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	5365000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	11354000	usd
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	2955000	usd
	us-gaap	Transfer Of Loans Held For Sale To Portfolio Loans1 TransferOfLoansHeldForSaleToPortfolioLoans1	7116000	usd
	mrbk	Transfer Of Securities Available For Sale To Held To Maturity TransferOfSecuritiesAvailableForSaleToHeldToMaturity	23655000	usd
	mrbk	Transfer Of Securities Available For Sale To Held To Maturity TransferOfSecuritiesAvailableForSaleToHeldToMaturity	0	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	10995000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	usd
	us-gaap	Basis Of Accounting BasisOfAccounting	Basis of Presentation<div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">The Corporation’s unaudited consolidated financial statements have been prepared in accordance with U.S. GAAP for interim financial information. Accordingly, they do not include all of the information and footnotes required by GAAP for complete consolidated financial statements. In the opinion of management, all adjustments necessary for a fair presentation of the consolidated financial position and the results of operations for the interim periods presented have been included.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Amounts subject to significant estimates are items such as the allowance for loan losses, lending related commitments, the fair value of financial instruments, other-than-temporary impairments of investment securities, and the valuations of goodwill, intangible assets, and servicing assets.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">These unaudited consolidated financial statements should be read in conjunction with the Corporation’s filings with the Securities and Exchange Commission (including our Annual Report on Form 10-K for the year ended December 31, 2021), subsequently filed quarterly reports on Form 10-Q and current reports on Form 8-K that update or provide information in addition to the information included in Form 10-K and Form 10-Q filings, if any.</span></div><div style="margin-bottom:6pt;text-align:justify"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Certain prior period amounts have been reclassified to conform with current period presentation. Reclassifications had no effect on net income or stockholders’ equity. Operating results for the three and nine months ended September 30, 2022 are not necessarily indicative of the results for the year ending December 31, 2022 or for any other period.</span></div>
CY2022Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	5798000	usd
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	9438000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	17268000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	27866000	usd
CY2022Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	5968000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	6157000	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	6038000	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	6148000	shares
CY2022Q3	us-gaap	Weighted Average Number Of Shares Employee Stock Ownership Plan Shares Not Committed To Be Released WeightedAverageNumberOfSharesEmployeeStockOwnershipPlanSharesNotCommittedToBeReleased	100000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Shares Employee Stock Ownership Plan Shares Not Committed To Be Released WeightedAverageNumberOfSharesEmployeeStockOwnershipPlanSharesNotCommittedToBeReleased	112000	shares
	us-gaap	Weighted Average Number Of Shares Employee Stock Ownership Plan Shares Not Committed To Be Released WeightedAverageNumberOfSharesEmployeeStockOwnershipPlanSharesNotCommittedToBeReleased	74000	shares
	us-gaap	Weighted Average Number Of Shares Employee Stock Ownership Plan Shares Not Committed To Be Released WeightedAverageNumberOfSharesEmployeeStockOwnershipPlanSharesNotCommittedToBeReleased	115000	shares
CY2022Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5868000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	6045000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5964000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	6033000	shares
CY2022Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	116000	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	125000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	137000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	113000	shares
CY2022Q3	mrbk	Incremental Common Shares Attributable To Dilutive Effect Of Retirement Plan IncrementalCommonSharesAttributableToDilutiveEffectOfRetirementPlan	75000
CY2021Q3	mrbk	Incremental Common Shares Attributable To Dilutive Effect Of Retirement Plan IncrementalCommonSharesAttributableToDilutiveEffectOfRetirementPlan	61000
	mrbk	Incremental Common Shares Attributable To Dilutive Effect Of Retirement Plan IncrementalCommonSharesAttributableToDilutiveEffectOfRetirementPlan	71000
	mrbk	Incremental Common Shares Attributable To Dilutive Effect Of Retirement Plan IncrementalCommonSharesAttributableToDilutiveEffectOfRetirementPlan	55000
CY2022Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6060000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6231000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6172000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6201000	shares
CY2022Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.99
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.56
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.90
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.62
CY2022Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.96
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.52
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.80
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.49
CY2022Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	237000	shares
CY2021Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	140000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	236000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	140000	shares
CY2022Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	143581000	usd
CY2022Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	21000	usd
CY2022Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	15603000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	127999000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	137	security
CY2022Q3	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	37922000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2022Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	5599000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	32323000	usd
CY2022Q3	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	0	security
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	158387000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2071000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1156000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	159302000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	62	security
CY2021Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	6372000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	219000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	0	usd
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	6591000	usd
CY2021Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	0	security
	mrbk	Debt Securities Other Than Temporary Impairment Number Of Positions DebtSecuritiesOtherThanTemporaryImpairmentNumberOfPositions	0	security
CY2022Q1	us-gaap	Debt Securities Available For Sale Transfer To Held To Maturity Allowance For Credit Loss Expense DebtSecuritiesAvailableForSaleTransferToHeldToMaturityAllowanceForCreditLossExpense	27700000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Reclassification Adjustment For Held To Maturity Transferred To Available For Sale Securities Before Tax OtherComprehensiveIncomeReclassificationAdjustmentForHeldToMaturityTransferredToAvailableForSaleSecuritiesBeforeTax	1300000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	94389000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	10991000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	31487000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	4612000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	125876000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	15603000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	0	usd
CY2022Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	0	usd
CY2022Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	24955000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	5599000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	24955000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	5599000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	71969000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1021000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	3676000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	135000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	75645000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1156000	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	0	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	0	usd
CY2022Q3	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date Year One DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne	0	usd
CY2022Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	0	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	0	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	0	usd
CY2021Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date Year One DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateYearOne	763000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	769000	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	17892000	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	16326000	usd
CY2022Q3	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year One Through Five DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughFive	4665000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	4588000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	12934000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	12885000	usd
CY2021Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year One Through Five DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughFive	2354000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	2397000	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	27386000	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	24111000	usd
CY2022Q3	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year5 Through10 DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear5Through10	3003000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	2643000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	30890000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	30798000	usd
CY2021Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year5 Through10 DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear5Through10	3255000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	3425000	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	55550000	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	48222000	usd
CY2022Q3	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year10 DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear10	30254000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	25092000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	81548000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	82450000	usd
CY2021Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year10 DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYear10	0	usd
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	0	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	100828000	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	88659000	usd
CY2022Q3	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDate	37922000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue	32323000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	125372000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	126133000	usd
CY2021Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Allocated And Single Maturity Date DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDate	6372000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue	6591000	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	42753000	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	39340000	usd
CY2022Q3	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Without Single Maturity Date DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityWithoutSingleMaturityDate	0	usd
CY2022Q3	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	0	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	33015000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	33169000	usd
CY2021Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss Maturity Without Single Maturity Date DebtSecuritiesHeldToMaturityAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossMaturityWithoutSingleMaturityDate	0	usd
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Without Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	0	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	143581000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	127999000	usd
CY2022Q3	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	37922000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	32323000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	158387000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	159302000	usd
CY2021Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	6372000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	6591000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
CY2021Q3	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	314000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	0	usd
	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	562000	usd
CY2022Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	usd
CY2021Q3	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	usd
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	0	usd
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	200000	usd
CY2022Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Fee And Loan In Process FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess	1604192000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Fee And Loan In Process FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess	1385688000	usd
CY2022Q3	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	14702000	usd
CY2021Q4	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	17558000	usd
CY2022Q3	mrbk	Loans Receivable Amortized Cost LoansReceivableAmortizedCost	17217000	usd
CY2021Q4	mrbk	Loans Receivable Amortized Cost LoansReceivableAmortizedCost	17106000	usd
CY2022Q3	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Undiscounted Excess Amount SalesTypeAndDirectFinancingLeasesLeaseReceivableUndiscountedExcessAmount	23940000	usd
CY2021Q4	us-gaap	Capital Leases Net Investment In Sales Type Leases Deferred Income CapitalLeasesNetInvestmentInSalesTypeLeasesDeferredIncome	17366000	usd
CY2022Q3	us-gaap	Financing Receivable Unamortized Loan Fee Cost FinancingReceivableUnamortizedLoanFeeCost	-6157000	usd
CY2021Q4	us-gaap	Financing Receivable Unamortized Loan Fee Cost FinancingReceivableUnamortizedLoanFeeCost	-769000	usd
CY2022Q3	us-gaap	Financing Receivable Excluding Accrued Interest90 Days Or More Past Due Still Accruing FinancingReceivableExcludingAccruedInterest90DaysOrMorePastDueStillAccruing	0	usd
CY2022Q3	mrbk	Financing Receivable Recorded Investment Past Due And Non Accruing FinancingReceivableRecordedInvestmentPastDueAndNonAccruing	5760000	usd
CY2022Q3	mrbk	Finance Receivable Total Accruing Loans And Leases FinanceReceivableTotalAccruingLoansAndLeases	1581204000	usd
CY2022Q3	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Fee And Loan In Process FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess	1604192000	usd
CY2022Q3	us-gaap	Financing Receivable Percent Past Due1 FinancingReceivablePercentPastDue1	0.0179
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest90 Days Or More Past Due Still Accruing FinancingReceivableExcludingAccruedInterest90DaysOrMorePastDueStillAccruing	0	usd
CY2021Q4	mrbk	Financing Receivable Recorded Investment Past Due And Non Accruing FinancingReceivableRecordedInvestmentPastDueAndNonAccruing	1093000	usd
CY2021Q4	mrbk	Finance Receivable Total Accruing Loans And Leases FinanceReceivableTotalAccruingLoansAndLeases	1362700000	usd
CY2021Q4	us-gaap	Financing Receivable Excluding Accrued Interest Before Allowance For Credit Loss Fee And Loan In Process FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess	1385688000	usd
CY2021Q4	us-gaap	Financing Receivable Percent Past Due1 FinancingReceivablePercentPastDue1	0.0174
CY2022Q2	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	18805000	usd
CY2022Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	431000	usd
CY2022Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	74000	usd
CY2022Q3	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	526000	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	18974000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	18758000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	1694000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	167000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	1743000	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	18974000	usd
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	18361000	usd
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	0	usd
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	18000	usd
CY2021Q3	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	597000	usd
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	18976000	usd
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	17767000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Writeoff FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff	129000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Allowance For Credit Loss Recovery FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossRecovery	46000	usd
	us-gaap	Financing Receivable Excluding Accrued Interest Credit Loss Expense Reversal FinancingReceivableExcludingAccruedInterestCreditLossExpenseReversal	1292000	usd
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	18976000	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2569000	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	16405000	usd
CY2022Q3	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	18974000	usd
CY2022Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	26087000	usd
CY2022Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1563403000	usd
CY2022Q3	mrbk	Financing Receivable Excluding Loans And Leases Carried At Fair Value FinancingReceivableExcludingLoansAndLeasesCarriedAtFairValue	1589490000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	3276000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	15482000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Loss Excluding Accrued Interest FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest	18758000	usd
CY2021Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	25829000	usd
CY2021Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1342301000	usd
CY2021Q4	mrbk	Financing Receivable Excluding Loans And Leases Carried At Fair Value FinancingReceivableExcludingLoansAndLeasesCarriedAtFairValue	1368130000	usd
CY2022Q3	mrbk	Increase Decrease In Financing Receivable Excluding Loans And Leases Carried At Fair Value And Residential Mortgage Consumer And Leases IncreaseDecreaseInFinancingReceivableExcludingLoansAndLeasesCarriedAtFairValueAndResidentialMortgageConsumerAndLeases	238000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	16761000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	17218000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2569000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	17813000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	17976000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	3276000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	9326000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	9402000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	8016000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	8104000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	26087000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	26620000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2569000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	25829000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	26080000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	3276000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	16861000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	0	usd
CY2021Q3	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	4416000	usd
CY2021Q3	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	5000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	9369000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	88000	usd
CY2021Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	6858000	usd
CY2021Q3	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	53000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	26230000	usd
CY2022Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	88000	usd
CY2021Q3	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	11274000	usd
CY2021Q3	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	58000	usd
	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	17029000	usd
	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	0	usd
	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	4485000	usd
	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	15000	usd
	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	9457000	usd
	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	364000	usd
	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	6953000	usd
	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	110000	usd
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	26486000	usd
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	364000	usd
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	11438000	usd
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	125000	usd
CY2022Q3	mrbk	Financing Receivable Modifications Included In Nonperforming Loans And Leases FinancingReceivableModificationsIncludedInNonperformingLoansAndLeases	193000	usd
CY2021Q4	mrbk	Financing Receivable Modifications Included In Nonperforming Loans And Leases FinancingReceivableModificationsIncludedInNonperformingLoansAndLeases	361000	usd
CY2022Q3	mrbk	Financing Receivable Modifications In Compliance With Modification Terms FinancingReceivableModificationsInComplianceWithModificationTerms	3637000	usd
CY2021Q4	mrbk	Financing Receivable Modifications In Compliance With Modification Terms FinancingReceivableModificationsInComplianceWithModificationTerms	3446000	usd
CY2022Q3	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	3830000	usd
CY2021Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	3807000	usd
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	1	loan
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	684000	usd
CY2022Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	23458000	usd
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	41344000	usd
CY2022Q3	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	162804000	usd
CY2022Q3	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	107000	usd
CY2021Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	290811000	usd
CY2021Q4	us-gaap	Derivative Assets Liabilities At Fair Value Net DerivativeAssetsLiabilitiesAtFairValueNet	821000	usd
CY2022Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	127000	usd
CY2021Q3	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-339000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-713000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-3431000	usd
CY2022Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	18026000	usd
CY2021Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	16257000	usd
CY2022Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	526000	usd
CY2021Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	597000	usd
CY2022Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	17500000	usd
CY2021Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	15660000	usd
CY2022Q3	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	7329000	usd
CY2021Q3	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	18726000	usd
CY2022Q3	mrbk	Sba Income Net Amortization SbaIncomeNetAmortization	989000	usd
CY2021Q3	mrbk	Sba Income Net Amortization SbaIncomeNetAmortization	2688000	usd
CY2022Q3	mrbk	Gain Loss On Net Change In Fair Values GainLossOnNetChangeInFairValues	-996000	usd
CY2021Q3	mrbk	Gain Loss On Net Change In Fair Values GainLossOnNetChangeInFairValues	-834000	usd
CY2022Q3	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	399000	usd
CY2021Q3	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	-1189000	usd
CY2022Q3	mrbk	Noninterest Income Other Operating Income Miscellaneous NoninterestIncomeOtherOperatingIncomeMiscellaneous	1389000	usd
CY2021Q3	mrbk	Noninterest Income Other Operating Income Miscellaneous NoninterestIncomeOtherOperatingIncomeMiscellaneous	1499000	usd
CY2022Q3	us-gaap	Noninterest Income NoninterestIncome	10224000	usd
CY2021Q3	us-gaap	Noninterest Income NoninterestIncome	22122000	usd
CY2022Q3	us-gaap	Noninterest Expense NoninterestExpense	20261000	usd
CY2021Q3	us-gaap	Noninterest Expense NoninterestExpense	25481000	usd
CY2022Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7463000	usd
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	12301000	usd
CY2022Q3	us-gaap	Assets Assets	1921924000	usd
CY2021Q3	us-gaap	Assets Assets	1762445000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	51610000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	46789000	usd
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1743000	usd
	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1292000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	49867000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	45497000	usd
	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	21367000	usd
	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	62293000	usd
	mrbk	Sba Income Net Amortization SbaIncomeNetAmortization	3946000	usd
	mrbk	Sba Income Net Amortization SbaIncomeNetAmortization	5423000	usd
	mrbk	Gain Loss On Net Change In Fair Values GainLossOnNetChangeInFairValues	-4306000	usd
	mrbk	Gain Loss On Net Change In Fair Values GainLossOnNetChangeInFairValues	-6619000	usd
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	4941000	usd
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	2397000	usd
	mrbk	Noninterest Income Other Operating Income Miscellaneous NoninterestIncomeOtherOperatingIncomeMiscellaneous	4108000	usd
	mrbk	Noninterest Income Other Operating Income Miscellaneous NoninterestIncomeOtherOperatingIncomeMiscellaneous	3877000	usd
	us-gaap	Noninterest Income NoninterestIncome	33728000	usd
	us-gaap	Noninterest Income NoninterestIncome	70902000	usd
	us-gaap	Noninterest Expense NoninterestExpense	61400000	usd
	us-gaap	Noninterest Expense NoninterestExpense	79990000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	22195000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	36409000	usd
CY2022Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y3M29D
CY2022Q3	us-gaap	Assets Assets	1921924000	usd
CY2021Q3	us-gaap	Assets Assets	1762445000	usd
CY2022Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	9500000	usd
CY2022Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	9400000	usd
CY2022Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	585000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	1742000	usd
CY2022Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1000	usd
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	3000	usd
CY2022Q3	us-gaap	Variable Lease Cost VariableLeaseCost	0	usd
	us-gaap	Variable Lease Cost VariableLeaseCost	0	usd
CY2022Q3	us-gaap	Lease Cost LeaseCost	586000	usd
	us-gaap	Lease Cost LeaseCost	1745000	usd
CY2022Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0261
	us-gaap	Operating Lease Payments OperatingLeasePayments	563000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	10995000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	559000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1919000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1746000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1456000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1436000	usd
CY2022Q3	mrbk	Lessee Operating Lease Liability To Be Paid After Year Four LesseeOperatingLeaseLiabilityToBePaidAfterYearFour	3134000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	10250000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	887000	usd
CY2022Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	9363000	usd

Files In Submission

Name	View Source	Status
0001750735-22-000080-index-headers.html	Edgar Link	pending
0001750735-22-000080-index.html	Edgar Link	pending
0001750735-22-000080.txt	Edgar Link	pending
0001750735-22-000080-xbrl.zip	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
mrbk-20220930.htm	Edgar Link	pending
mrbk-20220930.xsd	Edgar Link	pending
mrbk-20220930_g1.jpg	Edgar Link	pending
mrbk_ex31x1x9302022.htm	Edgar Link	pending
mrbk_ex31x2x9302022.htm	Edgar Link	pending
mrbk_ex32x9302022.htm	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
mrbk-20220930_cal.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
mrbk-20220930_def.xml	Edgar Link	unprocessable
mrbk-20220930_lab.xml	Edgar Link	unprocessable
mrbk-20220930_pre.xml	Edgar Link	unprocessable
mrbk-20220930_htm.xml	Edgar Link	completed
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
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
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.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

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$MRBK
Meridian Corp Stock $mrbk

2022 Q4 Form 10-Q Financial Statement

#000175073522000080 Filed on November 09, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MRBK Meridian Corp Stock $mrbk

2022 Q4 Form 10-Q Financial Statement

#000175073522000080 Filed on November 09, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MRBK
Meridian Corp Stock $mrbk