$QCRH
QCR HOLDINGS INC Stock $qcrh

$qcrh Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000155837022003441 Filed on March 11, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue		$200.2M
YoY Change		0.9%
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	$1.800M	$5.359M	$1.800M
YoY Change	0.0%	0.49%	-5.26%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense		$21.92M	$6.144M
YoY Change		-30.24%	-52.95%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$33.31M	$121.5M	$22.28M
YoY Change	49.51%	65.74%	-0.76%
Income Tax	$6.300M	$22.56M	$4.009M
% Of Pretax Income	18.91%	18.57%	17.99%
Net Earnings	$27.01M	$98.91M	$18.27M
YoY Change	47.83%	63.26%	14.98%
Net Earnings / Revenue		49.41%
Basic Earnings Per Share		$6.30	$1.16
Diluted Earnings Per Share	$1.731M	$6.20	$1.14
COMMON SHARES
Basic Shares Outstanding	15.60M	15.71M	15.79M
Diluted Shares Outstanding		15.94M

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$37.49M		$61.33M
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	$78.53M	$79.80M	$72.69M
YoY Change	8.03%	7.26%	-1.58%
Goodwill	$74.07M		$74.07M
YoY Change	0.0%		-0.91%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$6.096B	$6.096B	$5.705B
YoY Change	6.86%	6.86%	16.21%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses		$1.300M
YoY Change		-23.53%
Deferred Revenue
YoY Change
Short-Term Debt	$3.800M	$3.800M	$5.430M
YoY Change	-30.02%	-29.63%	-59.55%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$3.800M	$1.300M	$5.400M
YoY Change	-29.63%	-23.53%	-59.7%
LONG-TERM LIABILITIES
Long-Term Debt	$152.0M	$152.0M	$156.7M
YoY Change	-3.0%	-3.0%	47.55%
Other Long-Term Liabilities	$325.5M	$324.2M	$335.0M
YoY Change	-2.84%	-2.73%	82.36%
Total Long-Term Liabilities	$477.5M	$476.2M	$491.7M
YoY Change	-2.89%	-2.82%	69.61%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.800M	$1.300M	$5.400M
Total Long-Term Liabilities	$477.5M	$476.2M	$491.7M
Total Liabilities	$5.419B	$5.419B	$5.111B
YoY Change	6.02%	6.02%	16.86%
SHAREHOLDERS EQUITY
Retained Earnings	$386.1M		$300.8M
YoY Change	28.35%		22.36%
Common Stock	$15.61M		$15.81M
YoY Change	-1.22%		-0.14%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$677.0M	$677.0M	$593.8M
YoY Change
Total Liabilities & Shareholders Equity	$6.096B	$6.096B	$5.705B
YoY Change	6.86%	6.86%	16.21%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$27.01M	$98.91M	$18.27M
YoY Change	47.83%	63.26%	14.98%
Depreciation, Depletion And Amortization	$1.800M	$5.359M	$1.800M
YoY Change	0.0%	0.49%	-5.26%
Cash From Operating Activities	$23.90M	$88.22M	-$17.10M
YoY Change	-239.77%	-21.36%	-156.25%
INVESTING ACTIVITIES
Capital Expenditures	-$6.100M	$13.98M	-$2.000M
YoY Change	205.0%	227.58%	-44.44%
Acquisitions
YoY Change
Other Investing Activities	-$75.20M	-$397.8M	$135.3M
YoY Change	-155.58%	-43.19%	-293.56%
Cash From Investing Activities	-$81.30M	-$411.8M	$133.3M
YoY Change	-160.99%	-41.55%	-281.11%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$670.0K
YoY Change		-50.74%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	37.50M	299.7M	-123.8M
YoY Change	-130.29%	-48.09%	-836.9%
NET CHANGE
Cash From Operating Activities	23.90M	88.22M	-17.10M
Cash From Investing Activities	-81.30M	-411.8M	133.3M
Cash From Financing Activities	37.50M	299.7M	-123.8M
Net Change In Cash	-19.90M	-23.84M	-7.600M
YoY Change	161.84%	59.73%	-71.21%
FREE CASH FLOW
Cash From Operating Activities	$23.90M	$88.22M	-$17.10M
Capital Expenditures	-$6.100M	$13.98M	-$2.000M
Free Cash Flow	$30.00M	$74.24M	-$15.10M
YoY Change	-298.68%	-31.2%	-144.41%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000906465
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	15613460
CY2020	qcrh	Loan Lease Expense LoanLeaseExpense	1435000
CY2019	qcrh	Loan Lease Expense LoanLeaseExpense	1097000
CY2020	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	8173000
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	8791000
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	3427000
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	15805711
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	0-22208
CY2021	dei	Entity Registrant Name EntityRegistrantName	QCR HOLDINGS, INC.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	42-1397595
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	3551 7th Street
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Moline
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	IL
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	61265
CY2021	dei	City Area Code CityAreaCode	309
CY2021	dei	Local Phone Number LocalPhoneNumber	736-3580
CY2021	dei	Security12b Title Security12bTitle	Common Stock, $1.00 Par Value
CY2021	dei	Trading Symbol TradingSymbol	QCRH
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q2	dei	Entity Public Float EntityPublicFloat	730269379
CY2022Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	15641927
CY2021	dei	Auditor Firm AuditorFirmId	49
CY2021Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	37490000
CY2020Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	61329000
CY2021Q4	us-gaap	Federal Funds Sold FederalFundsSold	12370000
CY2020Q4	us-gaap	Federal Funds Sold FederalFundsSold	9080000
CY2021Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	75292000
CY2020Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	86596000
CY2021Q4	qcrh	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment Net Of Allowance For Credit Losses HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairmentNetOfAllowanceForCreditLosses	472385000
CY2020Q4	qcrh	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment Net Of Allowance For Credit Losses HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairmentNetOfAllowanceForCreditLosses	476165000
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	337830000
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	361966000
CY2021Q4	us-gaap	Debt Securities DebtSecurities	810215000
CY2020Q4	us-gaap	Debt Securities DebtSecurities	838131000
CY2021Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	3828000
CY2020Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	3758000
CY2021Q4	qcrh	Loans And Leases Receivable Held For Investment LoansAndLeasesReceivableHeldForInvestment	4676304000
CY2020Q4	qcrh	Loans And Leases Receivable Held For Investment LoansAndLeasesReceivableHeldForInvestment	4247371000
CY2021Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4680132000
CY2020Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	60586000
CY2020Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4251129000
CY2021Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	78721000
CY2020Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	84376000
CY2021Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4601411000
CY2020Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4166753000
CY2021Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	62424000
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	78530000
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	72693000
CY2021Q4	us-gaap	Restricted Investments RestrictedInvestments	19353000
CY2020Q4	us-gaap	Restricted Investments RestrictedInvestments	18103000
CY2020Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	20000
CY2021Q4	us-gaap	Goodwill Goodwill	74066000
CY2020Q4	us-gaap	Goodwill Goodwill	74066000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	9349000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	11381000
CY2021Q4	us-gaap	Derivative Assets DerivativeAssets	222220000
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	222757000
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CY2020Q4	us-gaap	Other Assets OtherAssets	83548000
CY2021Q4	us-gaap	Assets Assets	6096132000
CY2020Q4	us-gaap	Assets Assets	5705043000
CY2021Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1268788000
CY2020Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	1145378000
CY2021Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	3653984000
CY2020Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	3453759000
CY2021Q4	us-gaap	Deposits Deposits	4922772000
CY2020Q4	us-gaap	Deposits Deposits	4599137000
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	3800000
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	5430000
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	15000000
CY2020Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	15000000
CY2021Q4	us-gaap	Subordinated Debt SubordinatedDebt	113850000
CY2020Q4	us-gaap	Subordinated Debt SubordinatedDebt	118691000
CY2021Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	38155000
CY2020Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	37993000
CY2021Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	225135000
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	229270000
CY2021Q4	us-gaap	Other Liabilities OtherLiabilities	100410000
CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	105729000
CY2021Q4	us-gaap	Liabilities Liabilities	5419122000
CY2020Q4	us-gaap	Liabilities Liabilities	5111250000
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	250000
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	250000
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CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0
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CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	15613000
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CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	15613460
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CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	273768000
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	275807000
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	386077000
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	300804000
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	5925000
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CY2021Q4	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	-4373000
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CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	677010000
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CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5705043000
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CY2020	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	7787000
CY2019	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	6607000
CY2021	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	16167000
CY2020	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	14900000
CY2019	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	13858000
CY2021	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	173000
CY2020	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	669000
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CY2021	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	950000
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CY2019	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	216076000
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CY2021	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	5000
CY2020	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	84000
CY2019	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	363000
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CY2020	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	4697000
CY2019	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	3564000
CY2021	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	2275000
CY2020	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	2286000
CY2019	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	2308000
CY2021	us-gaap	Interest Expense InterestExpense	21922000
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	166950000
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	155559000
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3486000
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	55704000
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7066000
CY2021	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	174747000
CY2020	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	111246000
CY2019	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	148493000
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	4397000
CY2020	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	4680000
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2571000
CY2021	us-gaap	Gain Loss On Sale Of Other Loans And Leases GainLossOnSaleOfOtherLoansAndLeases	227000
CY2020	us-gaap	Gain Loss On Sale Of Other Loans And Leases GainLossOnSaleOfOtherLoansAndLeases	224000
CY2019	us-gaap	Gain Loss On Sale Of Other Loans And Leases GainLossOnSaleOfOtherLoansAndLeases	748000
CY2021	qcrh	Swap Fee Income SwapFeeIncome	60992000
CY2020	qcrh	Swap Fee Income SwapFeeIncome	74821000
CY2019	qcrh	Swap Fee Income SwapFeeIncome	28295000
CY2021	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	-88000
CY2020	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	2484000
CY2019	us-gaap	Debt Securities Gain Loss DebtSecuritiesGainLoss	-30000
CY2021	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1838000
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1904000
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	1973000
CY2019	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	12286000
CY2021	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	6308000
CY2020	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	4814000
CY2019	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	5429000
CY2021	us-gaap	Noninterest Income NoninterestIncome	100422000
CY2020	us-gaap	Noninterest Income NoninterestIncome	113798000
CY2019	us-gaap	Noninterest Income NoninterestIncome	78768000
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	100907000
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	96268000
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	92063000
CY2021	us-gaap	Equipment Expense EquipmentExpense	15918000
CY2020	us-gaap	Equipment Expense EquipmentExpense	16504000
CY2019	us-gaap	Equipment Expense EquipmentExpense	15106000
CY2021	qcrh	Professional And Data Processing Fees ProfessionalAndDataProcessingFees	14579000
CY2020	qcrh	Professional And Data Processing Fees ProfessionalAndDataProcessingFees	14644000
CY2019	qcrh	Professional And Data Processing Fees ProfessionalAndDataProcessingFees	13381000
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	624000
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.20
CY2020	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	214000
CY2020	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	3779000
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2150000
CY2019	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	3582000
CY2021	qcrh	Disposal Group Including Discontinued Operation Cost Of Disposal DisposalGroupIncludingDiscontinuedOperationCostOfDisposal	13000
CY2020	qcrh	Disposal Group Including Discontinued Operation Cost Of Disposal DisposalGroupIncludingDiscontinuedOperationCostOfDisposal	690000
CY2019	qcrh	Disposal Group Including Discontinued Operation Cost Of Disposal DisposalGroupIncludingDiscontinuedOperationCostOfDisposal	3325000
CY2021	qcrh	Fdic And Other Insurance FDICAndOtherInsurance	4475000
CY2020	qcrh	Fdic And Other Insurance FDICAndOtherInsurance	4164000
CY2019	qcrh	Fdic And Other Insurance FDICAndOtherInsurance	2955000
CY2021	qcrh	Loan Lease Expense LoanLeaseExpense	1671000
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.80
CY2021	qcrh	Expense Income On Operations Of Other Real Estate ExpenseIncomeOnOperationsOfOtherRealEstate	-1420000
CY2020	qcrh	Expense Income On Operations Of Other Real Estate ExpenseIncomeOnOperationsOfOtherRealEstate	-307000
CY2019	qcrh	Expense Income On Operations Of Other Real Estate ExpenseIncomeOnOperationsOfOtherRealEstate	3789000
CY2021	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	4254000
CY2020	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	3260000
CY2019	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	4548000
CY2021	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	2173000
CY2020	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	2016000
CY2019	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	2009000
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-3907000
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-436000
CY2021	qcrh	Correspondent Banking Expense CorrespondentBankingExpense	799000
CY2020	qcrh	Correspondent Banking Expense CorrespondentBankingExpense	838000
CY2019	qcrh	Correspondent Banking Expense CorrespondentBankingExpense	836000
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2032000
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2149000
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2266000
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	500000
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	3000000
CY2020	us-gaap	Gain Or Loss On Sale Of Stock In Subsidiary GainOrLossOnSaleOfStockInSubsidiary	-158000
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	7677000
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	5315000
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	6841000
CY2021	us-gaap	Noninterest Expense NoninterestExpense	153702000
CY2020	us-gaap	Noninterest Expense NoninterestExpense	151755000
CY2019	us-gaap	Noninterest Expense NoninterestExpense	155234000
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	121467000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	73289000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	72027000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22562000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12707000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14619000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	98905000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	60582000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	57408000
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.30
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.84
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.65
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.60
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.24
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15708744
CY2021	us-gaap	Net Income Loss NetIncomeLoss	98905000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	60582000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	57408000
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	-4158000
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	10657000
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsAndTax	8761000
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-88000
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	2484000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-30000
CY2021	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	-4070000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15771650
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15730016
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15944708
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15952637
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15967775
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.24
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.24
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-6854000
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-3806000
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	4124000
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	-4862000
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	-3806000
CY2019	qcrh	Other Comprehensive Income Loss Securities Held For Sale Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossSecuritiesHeldForSaleAdjustmentBeforeReclassificationAdjustmentsAndTax	587000
CY2019	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	61000
CY2019	qcrh	Other Comprehensive Income Loss Derivatives Held For Sale Adjustment Before Reclassification Adjustments And Tax OtherComprehensiveIncomeLossDerivativesHeldForSaleAdjustmentBeforeReclassificationAdjustmentsAndTax	-446000
CY2019	qcrh	Other Comprehensive Income Loss Reclassification Adjustment From Oci Derivatives Held For Sale Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromOCIDerivativesHeldForSaleBeforeTax	-422000
CY2019	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	392000
CY2019	qcrh	Other Comprehensive Income Held For Sale Securities And Derivatives Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeHeldForSaleSecuritiesAndDerivativesAdjustmentBeforeTaxPortionAttributableToParent	894000
CY2021	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	54000
CY2020	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	3311000
CY2019	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	5879000
CY2021	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-122000
CY2020	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	837000
CY2019	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	1433000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	176000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2474000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	4446000
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	99081000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	63056000
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	61854000
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	473138000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	57408000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	4446000
CY2019	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	399000
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	3775000
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2469000
CY2019	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1266000
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	535351000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	60582000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2474000
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	3779000
CY2020	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	794000
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3486000
CY2020	us-gaap	Gain Loss On Sale Of Other Loans And Leases GainLossOnSaleOfOtherLoansAndLeases	224000
CY2019	us-gaap	Gain Loss On Sale Of Other Loans And Leases GainLossOnSaleOfOtherLoansAndLeases	748000
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	593793000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	98905000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	176000
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	14168000
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	3781000
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2352000
CY2021	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	670000
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	677010000
CY2021	us-gaap	Profit Loss ProfitLoss	98905000
CY2020	us-gaap	Profit Loss ProfitLoss	60582000
CY2019	us-gaap	Profit Loss ProfitLoss	57408000
CY2021	us-gaap	Depreciation Depreciation	5359000
CY2020	us-gaap	Depreciation Depreciation	5333000
CY2019	us-gaap	Depreciation Depreciation	5225000
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	55704000
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7066000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15272000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-14530000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6364000
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	2352000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	2150000
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	2469000
CY2021	us-gaap	Increase Decrease In Deferred Compensation IncreaseDecreaseInDeferredCompensation	4580000
CY2020	us-gaap	Increase Decrease In Deferred Compensation IncreaseDecreaseInDeferredCompensation	3821000
CY2019	us-gaap	Increase Decrease In Deferred Compensation IncreaseDecreaseInDeferredCompensation	2773000
CY2021	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	1754000
CY2020	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	317000
CY2019	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-3361000
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1933000
CY2020	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-969000
CY2019	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-1561000
CY2021	qcrh	Caplet Amortization CapletAmortization	697000
CY2020	qcrh	Caplet Amortization CapletAmortization	551000
CY2021	qcrh	Mark To Market Gains On Unhedged Derivatives Net MarkToMarketGainsOnUnhedgedDerivativesNet	170000
CY2021	us-gaap	Gain Loss On Investments GainLossOnInvestments	-88000
CY2020	us-gaap	Gain Loss On Investments GainLossOnInvestments	2484000
CY2019	us-gaap	Gain Loss On Investments GainLossOnInvestments	-30000
CY2021	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	204449000
CY2020	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	236734000
CY2019	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	151692000
CY2021	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	209003000
CY2020	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	241553000
CY2019	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	152633000
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	4397000
CY2020	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	4680000
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2571000
CY2021	us-gaap	Gain Loss On Sale Of Other Loans And Leases GainLossOnSaleOfOtherLoansAndLeases	227000
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	47006000
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	9445000
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	19152000
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	4633000
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	8408000
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	23915000
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	88218000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	112177000
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-3907000
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-436000
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-1059000
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	19000
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-753000
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2032000
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2149000
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2266000
CY2021	qcrh	Accretion Fair Value Adjustment Net AccretionFairValueAdjustmentNet	1340000
CY2020	qcrh	Accretion Fair Value Adjustment Net AccretionFairValueAdjustmentNet	3271000
CY2019	qcrh	Accretion Fair Value Adjustment Net AccretionFairValueAdjustmentNet	4344000
CY2021	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	1838000
CY2020	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	1904000
CY2019	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	1973000
CY2020	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	-158000
CY2019	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	12286000
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	500000
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	3000000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	76494000
CY2021	us-gaap	Increase Decrease In Federal Funds Sold IncreaseDecreaseInFederalFundsSold	-3290000
CY2020	us-gaap	Increase Decrease In Federal Funds Sold IncreaseDecreaseInFederalFundsSold	720000
CY2019	us-gaap	Increase Decrease In Federal Funds Sold IncreaseDecreaseInFederalFundsSold	16598000
CY2021	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	11304000
CY2020	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	61295000
CY2019	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	-69984000
CY2021	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	4742000
CY2020	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	4477000
CY2019	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	840000
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	173204000
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	356127000
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	71963000
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	106442000
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	53007000
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	25193000
CY2021	qcrh	Paydowns Paydowns	65410000
CY2020	qcrh	Paydowns Paydowns	47313000
CY2019	qcrh	Paydowns Paydowns	50830000
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	23874000
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	38562000
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	30055000
CY2021	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	1280000
CY2020	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	4600000
CY2019	us-gaap	Payments To Acquire Restricted Investments PaymentsToAcquireRestrictedInvestments	5859000
CY2021	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	30000
CY2020	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	9749000
CY2019	us-gaap	Proceeds From Sale Of Restricted Investments ProceedsFromSaleOfRestrictedInvestments	7621000
CY2020	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	10999000
CY2021	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	433544000
CY2020	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	564748000
CY2019	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	320368000
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	13981000
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4268000
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	12429000
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1726000
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	101000
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2562000
CY2019	us-gaap	Payments For Derivative Instrument Investing Activities PaymentsForDerivativeInstrumentInvestingActivities	4347000
CY2020	qcrh	Payment On Termination Of Swap PaymentOnTerminationOfSwap	808000
CY2020	qcrh	Net Cash Transferred In Sale Of Subsidiary NetCashTransferredInSaleOfSubsidiary	154000
CY2019	qcrh	Net Cash Transferred In Sale Of Subsidiary NetCashTransferredInSaleOfSubsidiary	-42587000
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-411771000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-704482000
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-308664000
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	323635000
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	716898000
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	335580000
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-1630000
CY2020	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-7993000
CY2019	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-14193000
CY2020	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	125000000
CY2019	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	25000000
CY2020	qcrh	Payment Or Collection Of Calls And Maturities PaymentOrCollectionOfCallsAndMaturities	121600000
CY2019	qcrh	Payment Or Collection Of Calls And Maturities PaymentOrCollectionOfCallsAndMaturities	35000000
CY2020	qcrh	Payments For Proceeds From Short Term And Over Night Advances PaymentsForProceedsFromShortTermAndOverNightAdvances	94300000
CY2019	qcrh	Payments For Proceeds From Short Term And Over Night Advances PaymentsForProceedsFromShortTermAndOverNightAdvances	52465000
CY2020	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	55274000
CY2019	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	30323000
CY2019	qcrh	Repayments Of Long Term Debt Other Than Long Term Lines Of Credit And Federal Home Loan Bank Fhlbank Borrowing RepaymentsOfLongTermDebtOtherThanLongTermLinesOfCreditAndFederalHomeLoanBankFhlbankBorrowing	11937000
CY2019	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	46313000
CY2019	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	9000000
CY2020	qcrh	Proceeds From Prepayments On Brokered And Public Time Deposits ProceedsFromPrepaymentsOnBrokeredAndPublicTimeDeposits	-29153000
CY2021	qcrh	Prepayments Of Subordinated Notes PrepaymentsOfSubordinatedNotes	-5000000
CY2020	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	50000000
CY2019	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	63393000
CY2021	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	3793000
CY2020	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	3779000
CY2019	us-gaap	Payments Of Ordinary Dividends PaymentsOfOrdinaryDividends	3767000
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	670000
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1360000
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1926000
CY2021	qcrh	Payments For Repurchase And Cancellation Of Shares PaymentsForRepurchaseAndCancellationOfShares	-14168000
CY2020	qcrh	Payments For Repurchase And Cancellation Of Shares PaymentsForRepurchaseAndCancellationOfShares	-3779000
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	299714000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	577380000
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	222901000
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-23839000
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-14925000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-9269000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	61329000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	76254000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	85523000
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	37490000
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	61329000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	76254000
CY2021	us-gaap	Interest Paid Net InterestPaidNet	23373000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	32178000
CY2019	us-gaap	Interest Paid Net InterestPaidNet	59292000
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-48988000
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-24567000
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-2719000
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-176000
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-2474000
CY2019	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-4446000
CY2021	qcrh	Change In Retained Earnings From Adoption Of Asu ChangeInRetainedEarningsFromAdoptionOfAsu	-937000
CY2021	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	2962000
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	51000
CY2019	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1086000
CY2021	qcrh	Change In Due To Broker Noncash ChangeInDueToBrokerNoncash	1000000
CY2021	qcrh	Decrease Increase In Fair Market Value Of Interest Rate Swap Assets And Liabilities DecreaseIncreaseInFairMarketValueOfInterestRateSwapAssetsAndLiabilities	1376000
CY2020	qcrh	Decrease Increase In Fair Market Value Of Interest Rate Swap Assets And Liabilities DecreaseIncreaseInFairMarketValueOfInterestRateSwapAssetsAndLiabilities	-137752000
CY2019	qcrh	Decrease Increase In Fair Market Value Of Interest Rate Swap Assets And Liabilities DecreaseIncreaseInFairMarketValueOfInterestRateSwapAssetsAndLiabilities	-62483000
CY2021	qcrh	Change In Dividends Payable Noncash ChangeInDividendsPayableNoncash	935000
CY2020	qcrh	Change In Dividends Payable Noncash ChangeInDividendsPayableNoncash	947000
CY2019	qcrh	Change In Dividends Payable Noncash ChangeInDividendsPayableNoncash	947000
CY2020	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	195000
CY2019	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	46560000
CY2020Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	349000
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	3973000
CY2019Q4	qcrh	Disposal Group Including Discontinued Operation Interest Bearing Deposits At Financial Institutions DisposalGroupIncludingDiscontinuedOperationInterestBearingDepositsAtFinancialInstitutions	55291000
CY2019Q4	qcrh	Disposal Group Including Discontinued Operation Securities Held To Maturity At Amortized Cost DisposalGroupIncludingDiscontinuedOperationSecuritiesHeldToMaturityAtAmortizedCost	3243000
CY2019Q4	qcrh	Disposal Group Including Discontinued Operation Securities Available For Sale At Fair Value DisposalGroupIncludingDiscontinuedOperationSecuritiesAvailableForSaleAtFairValue	21874000
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Accounts Notes And Loans Receivable Net DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet	357931000
CY2020Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment	19000
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment	5612000
CY2019Q4	qcrh	Disposal Group Including Discontinued Operation Restricted Investment Securities DisposalGroupIncludingDiscontinuedOperationRestrictedInvestmentSecurities	675000
CY2019Q4	qcrh	Disposal Group Including Discontinued Operation Other Real Estate Owned Net DisposalGroupIncludingDiscontinuedOperationOtherRealEstateOwnedNet	2134000
CY2020Q4	us-gaap	Disposal Group Including Discontinued Operation Other Assets DisposalGroupIncludingDiscontinuedOperationOtherAssets	2259000
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Other Assets DisposalGroupIncludingDiscontinuedOperationOtherAssets	3228000
CY2020Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	2627000
CY2019Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation AssetsOfDisposalGroupIncludingDiscontinuedOperation	453961000
CY2019Q4	qcrh	Disposal Group Including Discontinued Operation Noninterest Bearing Deposits DisposalGroupIncludingDiscontinuedOperationNoninterestBearingDeposits	69802000
CY2019Q4	qcrh	Disposal Group Including Discontinued Operation Interest Bearing Deposits DisposalGroupIncludingDiscontinuedOperationInterestBearingDeposits	331486000
CY2019Q4	qcrh	Disposal Group Including Discontinued Operation Short Term Borrowings DisposalGroupIncludingDiscontinuedOperationShortTermBorrowings	1158000
CY2019Q4	qcrh	Disposal Group Including Discontinued Operation Federal Home Loan Bank Advances DisposalGroupIncludingDiscontinuedOperationFederalHomeLoanBankAdvances	15000000
CY2020Q4	us-gaap	Disposal Group Including Discontinued Operation Other Liabilities DisposalGroupIncludingDiscontinuedOperationOtherLiabilities	946000
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Other Liabilities DisposalGroupIncludingDiscontinuedOperationOtherLiabilities	2241000
CY2020Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	946000
CY2019Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation	419687000
CY2020Q4	qcrh	Net Assets Of Disposal Group Including Discontinued Operation NetAssetsOfDisposalGroupIncludingDiscontinuedOperation	1681000
CY2019Q4	qcrh	Net Assets Of Disposal Group Including Discontinued Operation NetAssetsOfDisposalGroupIncludingDiscontinuedOperation	34274000
CY2020	qcrh	Disposal Group Including Discontinued Operation Forgiveness Of Earn Out Consideration DisposalGroupIncludingDiscontinuedOperationForgivenessOfEarnOutConsideration	880000
CY2020Q4	us-gaap	Disposal Group Including Discontinued Operation Consideration DisposalGroupIncludingDiscontinuedOperationConsideration	448000
CY2020	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	-158000
CY2019	us-gaap	Gain Loss On Sale Of Stock In Subsidiary Or Equity Method Investee GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee	12286000
CY2021	us-gaap	Nature Of Operations NatureOfOperations	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-weight:bold;margin:0pt 0pt 12pt 0pt;">Nature of business:</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 0pt 12pt 0pt;">QCR Holdings, Inc. is a bank holding company that has elected to operate as a financial holding company under the BHCA. The Company provides bank and bank-related services through its banking subsidiaries, QCBT, CRBT, CSB and SFCB. The Company also engages in direct financing lease contracts through its wholly-owned equity investment by QCBT in m2, headquartered in Brookfield, Wisconsin. The Company also engages in wealth management services through its banking subsidiaries.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 0pt 12pt 0pt;">On August 12, 2020, the Company sold the Company’s wholly-owned subsidiaries, the Bates Companies, which were originally acquired on October 1, 2018. On November 30, 2019, the Company sold substantially all of the assets and transferred substantially all of the deposits and certain other liabilities of the Company’s wholly-owned subsidiary, RB&T. The financial results of the Bates Companies and RB&T prior to their respective sales are included in this report. See Note 2 to the Consolidated Financial Statements for additional information.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 0pt 12pt 0pt;">QCBT is a commercial bank that serves the Iowa and Illinois Quad Cities and adjacent communities. CRBT is a commercial bank that serves Cedar Rapids, Iowa, and adjacent communities including Cedar Falls and Waterloo, Iowa. CSB is a commercial bank that serves Des Moines, Iowa, and adjacent communities. SFCB is a commercial bank that serves Springfield, Missouri.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 0pt 12pt 0pt;">QCBT, CRBT, and CSB are chartered and regulated under the laws of the state of Iowa. SFCB is chartered and regulated under the laws of the state of Missouri. All four subsidiary banks are insured and subject to regulation by the FDIC. All four subsidiary banks are members of and regulated by the Federal Reserve System. </p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 0pt 12pt 0pt;">The remaining direct subsidiaries of the Company consist of a consolidated subsidiary formed during 2021 for the risk management of insurance and six non-consolidated subsidiaries formed for the issuance of trust preferred securities. See Note 13 to the Consolidated Financial Statements for a listing of these subsidiaries and additional information.</p>
CY2021Q4	qcrh	Number Of Subsidiaries NumberOfSubsidiaries	4
CY2021Q4	qcrh	Number Of Subsidiaries NumberOfSubsidiaries	4
CY2021	qcrh	Number Of Nonconsolidated Subsidiaries Issuing Trust Preferred Securities NumberOfNonconsolidatedSubsidiariesIssuingTrustPreferredSecurities	6
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 0pt 12pt 0pt;"><span style="text-decoration-color:#000000;text-decoration-line:underline;text-decoration-style:solid;">Accounting estimates</span>: The preparation of financial statements, in conformity with GAAP, requires management to make estimates and assumptions that affect the reported amount 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. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance, impairment of goodwill, fair value of financial instruments, and the fair value of securities.</p>
CY2021	qcrh	Number Of Nonconsolidated Subsidiaries Issuing Trust Preferred Securities NumberOfNonconsolidatedSubsidiariesIssuingTrustPreferredSecurities	6
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2500000
CY2021Q4	us-gaap	Cash Reserve Deposit Required And Made CashReserveDepositRequiredAndMade	0
CY2021	qcrh	Allowance For Credit Losses On Loans Number Of Portfolio Segments AllowanceForCreditLossesOnLoansNumberOfPortfolioSegments	8
CY2021Q4	qcrh	Minimum Outstanding Balance Considered For Calculation Of Allowance On Case To Case MinimumOutstandingBalanceConsideredForCalculationOfAllowanceOnCaseToCase	250000
CY2021Q4	qcrh	Maximum Principal Balance Considered For Placing Loans In Unique Pool MaximumPrincipalBalanceConsideredForPlacingLoansInUniquePool	250000
CY2021	qcrh	Financing Receivable Lines Of Credit Maximum Term FinancingReceivableLinesOfCreditMaximumTerm	P1Y
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2400000
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2200000
CY2021Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	250000
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	250000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	11600000
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	10800000
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	419000
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	270000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	303000
CY2021	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt 0pt 12pt 0pt;"><span style="text-decoration-color:#000000;text-decoration-line:underline;text-decoration-style:solid;">Reclassifications</span>: Certain amounts in the prior year’s Consolidated Financial Statements have been reclassified, with no effect on net income or stockholders’ equity, to conform with the current period presentation.</p>
CY2021Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	84376000
CY2021Q4	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	472583000
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	49715000
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	1000
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	522297000
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	329994000
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	9157000
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1321000
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	337830000
CY2021Q4	qcrh	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment Net Of Allowance For Credit Losses HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairmentNetOfAllowanceForCreditLosses	472400000
CY2021Q4	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	472600000
CY2021Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	198000
CY2020Q4	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	476165000
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	45360000
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	248000
CY2020Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	521277000
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	350060000
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	12430000
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	524000
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	361966000
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	32980000
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	464000
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	23442000
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	857000
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	56422000
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1321000
CY2020Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	8407000
CY2020Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	248000
CY2020Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	8407000
CY2020Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	248000
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	57742000
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	485000
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	9945000
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	39000
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	67687000
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	524000
CY2021Q4	qcrh	Number Of Securities NumberOfSecurities	622
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	42
CY2021Q4	qcrh	Aggregate Depreciation From Amortized Cost Basis Percent AggregateDepreciationFromAmortizedCostBasisPercent	0.0017
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	42
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	13
CY2021	us-gaap	Debt Securities Held To Maturity Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityCreditLossExpenseReversal	-15000
CY2021Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	198000
CY2021	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	23874000
CY2020	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	38562000
CY2019	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	30055000
CY2020	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	2553000
CY2019	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	176000
CY2021	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	88000
CY2020	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	69000
CY2019	us-gaap	Loss On Sale Of Investments LossOnSaleOfInvestments	206000
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	2636000
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	2651000
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	23246000
CY2021Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	23800000
CY2021Q4	qcrh	Held To Maturity Securities Debt Maturities After Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveYearsNetCarryingAmount	446701000
CY2021Q4	qcrh	Held To Maturity Securities Debt Maturities After Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveYearsFairValue	495846000
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	472583000
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	522297000
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	5873000
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	5943000
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	5600000
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	5764000
CY2021Q4	qcrh	Available For Sale Securities Debt Maturities After Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsAmortizedCost	199718000
CY2021Q4	qcrh	Available For Sale Securities Debt Maturities After Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsFairValue	204676000
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	211191000
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	216383000
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	329994000
CY2021Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	337830000
CY2021Q4	us-gaap	Security Owned And Pledged As Collateral Fair Value SecurityOwnedAndPledgedAsCollateralFairValue	246500000
CY2020Q4	us-gaap	Security Owned And Pledged As Collateral Fair Value SecurityOwnedAndPledgedAsCollateralFairValue	212800000
CY2021	qcrh	Number Of Charters Owning Municipal Securities NumberOfChartersOwningMunicipalSecurities	4
CY2021Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	4680132000
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	78721000
CY2021Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4601411000
CY2020Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	4243791000
CY2020Q4	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	7338000
CY2020Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4251129000
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	84376000
CY2020Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	4166753000
CY2020Q4	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield	3139000
CY2021	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAccretion	1606000
CY2021Q4	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield	1533000
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield	6435000
CY2020	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield Reclassifications To Nonaccretable Difference CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToNonaccretableDifference	530000
CY2020	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldReclassificationsFromNonaccretableDifference	353000
CY2020	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAccretion	3473000
CY2020Q4	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield	3139000
CY2018Q4	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield	10794000
CY2019	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield Reclassifications To Nonaccretable Difference CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToNonaccretableDifference	275000
CY2019	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldAccretion	4634000
CY2019Q4	us-gaap	Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYield	6435000
CY2021Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	4680132000
CY2021Q4	us-gaap	Loans And Leases Receivable Ratio Of Nonperforming Loans To All Loans LoansAndLeasesReceivableRatioOfNonperformingLoansToAllLoans	1.0000
CY2020Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	4243791000
CY2020Q4	us-gaap	Loans And Leases Receivable Ratio Of Nonperforming Loans To All Loans LoansAndLeasesReceivableRatioOfNonperformingLoansToAllLoans	1.0000
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	84376000
CY2021	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	5702000
CY2021	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	4538000
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1283000
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	78721000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	36001000
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	55704000
CY2020	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	8383000
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1054000
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	84376000
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	39847000
CY2019	qcrh	Allowance For Loan And Lease Losses Reclassification Of Allowance Related To Assets Held For Sale AllowanceForLoanAndLeaseLossesReclassificationOfAllowanceRelatedToAssetsHeldForSale	6122000
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	6638000
CY2019	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	5134000
CY2019	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	772000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	36001000
CY2021Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	58677000
CY2021Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	4621455000
CY2021Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	4680132000
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2554000
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	76167000
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	78721000
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2680000
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	81696000
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	84376000
CY2020Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	14628000
CY2020Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	4229163000
CY2020Q4	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	4243791000
CY2020Q4	qcrh	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment On Loans Leases Percent FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairmentOnLoansLeasesPercent	0.1832
CY2020Q4	qcrh	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment On Loans Leases Percent FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairmentOnLoansLeasesPercent	0.0193
CY2020Q4	qcrh	Financing Receivable Allowance For Credit Losses On Loans Leases Percent FinancingReceivableAllowanceForCreditLossesOnLoansLeasesPercent	0.0199
CY2020Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	3924000
CY2020Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	4804000
CY2020	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	2576000
CY2020	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	79000
CY2020	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod	79000
CY2020Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	10704000
CY2020Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	10704000
CY2020Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2680000
CY2020	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	7578000
CY2020Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	14628000
CY2020Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	15508000
CY2020Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2680000
CY2020	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	10154000
CY2020	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	79000
CY2020	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	79000
CY2019Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	4912000
CY2019Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	5115000
CY2019	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	4009000
CY2019	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	86000
CY2019	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeCashBasisMethod	86000
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	3749000
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	3749000
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	660000
CY2019	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	2412000
CY2019	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	2000
CY2019	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeCashBasisMethod	2000
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	8661000
CY2019Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	8864000
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	660000
CY2019	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	6421000
CY2019	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	88000
CY2019	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	88000
CY2021	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	494000000
CY2020	us-gaap	Financing Receivable Nonaccrual Interest Income FinancingReceivableNonaccrualInterestIncome	1700000
CY2021	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	3000
CY2021	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	2599000
CY2021	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	2599000
CY2021	qcrh	Financing Receivable Modifications Specific Allowance Recorded Investment FinancingReceivableModificationsSpecificAllowanceRecordedInvestment	189000
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	4
CY2020	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1022000
CY2020	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1022000
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	1
CY2020	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	44000
CY2021Q4	qcrh	Number Of Troubled Debt Restructurings Restructured And Charged Off NumberOfTroubledDebtRestructuringsRestructuredAndChargedOff	5
CY2020	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	266000
CY2019Q4	qcrh	Threshold For Related Party Loans Evaluated ThresholdForRelatedPartyLoansEvaluated	60000
CY2020Q4	qcrh	Threshold For Related Party Loans Evaluated ThresholdForRelatedPartyLoansEvaluated	60000
CY2021Q4	qcrh	Threshold For Related Party Loans Evaluated ThresholdForRelatedPartyLoansEvaluated	60000
CY2020Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	100361000
CY2019Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	112830000
CY2018Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	125496000
CY2021	us-gaap	Loans And Leases Receivable Related Parties Period Increase Decrease LoansAndLeasesReceivableRelatedPartiesPeriodIncreaseDecrease	-18832000
CY2020	us-gaap	Loans And Leases Receivable Related Parties Period Increase Decrease LoansAndLeasesReceivableRelatedPartiesPeriodIncreaseDecrease	-1601000
CY2019	us-gaap	Loans And Leases Receivable Related Parties Period Increase Decrease LoansAndLeasesReceivableRelatedPartiesPeriodIncreaseDecrease	-12161000
CY2021	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	42817000
CY2020	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	43238000
CY2019	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	98708000
CY2021	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	23448000
CY2020	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	54106000
CY2019	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	99213000
CY2021Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	100898000
CY2020Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	100361000
CY2019Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	112830000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1469000
CY2021	us-gaap	Direct Financing Lease Interest Income DirectFinancingLeaseInterestIncome	4000000.0
CY2021Q4	us-gaap	Land Land	12513000
CY2020Q4	us-gaap	Land Land	13403000
CY2021Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	70555000
CY2020Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	67844000
CY2021Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	47822000
CY2020Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	42667000
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	130890000
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	123914000
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	52360000
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	51221000
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	78530000
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	72693000
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	636000
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	662000
CY2020	qcrh	Operating Lease Right Of Use Asset Capitalized OperatingLeaseRightOfUseAssetCapitalized	0
CY2021	qcrh	Operating Lease Right Of Use Asset Capitalized OperatingLeaseRightOfUseAssetCapitalized	0
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	269000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	200000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	144000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	153000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	159000
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	544000
CY2020	us-gaap	Direct Financing Lease Interest Income DirectFinancingLeaseInterestIncome	5100000
CY2021Q4	us-gaap	Direct Financing Lease Net Investment In Lease DirectFinancingLeaseNetInvestmentInLease	44200000
CY2020Q4	us-gaap	Direct Financing Lease Net Investment In Lease DirectFinancingLeaseNetInvestmentInLease	65300000
CY2021Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Next Twelve Months SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNextTwelveMonths	2590000
CY2021Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Two Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedTwoYears	12461000
CY2021Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Three Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThreeYears	14319000
CY2021Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Four Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFourYears	14508000
CY2021Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Five Years SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedFiveYears	5019000
CY2021Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Thereafter SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedThereafter	465000
CY2021Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceived	49362000
CY2021Q4	us-gaap	Sales Type Lease Residual Value Of Leased Asset SalesTypeLeaseResidualValueOfLeasedAsset	165000
CY2021Q4	qcrh	Sales Type Lease Unearned Interest Income Unguaranteed Residual Asset SalesTypeLeaseUnearnedInterestIncomeUnguaranteedResidualAsset	4336000
CY2021Q4	qcrh	Sales Type And Direct Financing Leases Lease Receivable Payments To Be Received Net Of Unguaranteed Residual Value And Income SalesTypeAndDirectFinancingLeasesLeaseReceivablePaymentsToBeReceivedNetOfUnguaranteedResidualValueAndIncome	45191000
CY2021Q4	qcrh	Sale Lease Type Deferred Origination Costs SaleLeaseTypeDeferredOriginationCosts	568000
CY2021Q4	qcrh	Sales Type And Direct Financing Leases Lease Receivable Including Deferred Origination Cost Net Of Fees SalesTypeAndDirectFinancingLeasesLeaseReceivableIncludingDeferredOriginationCostNetOfFees	45759000
CY2021Q4	us-gaap	Sales Type Lease Net Investment In Lease Allowance For Credit Loss SalesTypeLeaseNetInvestmentInLeaseAllowanceForCreditLoss	1546000
CY2021Q4	us-gaap	Sales Type And Direct Financing Leases Lease Receivable SalesTypeAndDirectFinancingLeasesLeaseReceivable	44213000
CY2020Q4	us-gaap	Goodwill Goodwill	74066000
CY2019Q4	us-gaap	Goodwill Goodwill	74748000
CY2018Q4	us-gaap	Goodwill Goodwill	77832000
CY2021Q4	us-gaap	Goodwill Goodwill	74066000
CY2020Q4	us-gaap	Goodwill Goodwill	74066000
CY2019Q4	us-gaap	Goodwill Goodwill	74748000
CY2021Q4	us-gaap	Goodwill Goodwill	74066000
CY2020Q4	us-gaap	Goodwill Goodwill	74066000
CY2019Q4	us-gaap	Goodwill Goodwill	74748000
CY2020Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2021Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2021Q4	us-gaap	Derivative Assets DerivativeAssets	222220000
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	222757000
CY2021Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	225135000
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	229270000
CY2021	qcrh	Swapped Loan Portfolio Loan To Value Percentage SwappedLoanPortfolioLoanToValuePercentage	0.65
CY2021	qcrh	Minimum Certificate Of Deposit Denomination MinimumCertificateOfDepositDenomination	250000
CY2021Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	169000000.0
CY2020Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	175600000
CY2021Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	334214000
CY2021Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	57712000
CY2021Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	16747000
CY2021Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	9802000
CY2021Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	2873000
CY2021Q4	us-gaap	Time Deposits TimeDeposits	421348000
CY2021Q4	us-gaap	Deposit Liabilities Collateral Issued Financial Instruments DepositLiabilitiesCollateralIssuedFinancialInstruments	6350000
CY2020Q4	us-gaap	Deposit Liabilities Collateral Issued Financial Instruments DepositLiabilitiesCollateralIssuedFinancialInstruments	8440000
CY2021	qcrh	Prepayment Of Brokered Certificate Of Deposits PrepaymentOfBrokeredCertificateOfDeposits	0
CY2020	qcrh	Prepayment Of Brokered And Time Deposits PrepaymentOfBrokeredAndTimeDeposits	29200000
CY2020	qcrh	Gain Loss On Prepayment Of Brokered And Public Time Deposits GainLossOnPrepaymentOfBrokeredAndPublicTimeDeposits	576000
CY2021Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	3800000
CY2020Q4	us-gaap	Federal Funds Purchased FederalFundsPurchased	5430000
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	3800000
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	5430000
CY2021	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;min-height:0.0pt;margin:0pt;"><span style="font-size:0pt;visibility:hidden;"></span></p><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:80%;"><tr style="height:1pt;"><td style="vertical-align:bottom;width:69.79%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:2.67%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:1.33%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:9.81%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:3.56%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:1.33%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:9.25%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td><td style="vertical-align:bottom;white-space:nowrap;width:2.23%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div style="bottom:0pt;position:absolute;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-size:1pt;visibility:hidden;"></span></p></div></div></td></tr><tr><td style="vertical-align:bottom;width:69.79%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><b style="font-weight:bold;"> </b><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.67%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-weight:bold;"> </b></p></td><td colspan="3" style="vertical-align:bottom;white-space:nowrap;width:14.71%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">2021</b></p></td><td colspan="3" style="vertical-align:bottom;white-space:nowrap;width:12.82%;border-bottom:1px solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">2020</b></p></td></tr><tr><td style="vertical-align:bottom;width:69.79%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.67%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td colspan="6" style="vertical-align:bottom;white-space:nowrap;width:27.53%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="font-style:italic;font-weight:bold;">(dollars in thousands)</span></p></td></tr><tr><td style="vertical-align:bottom;width:69.79%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.67%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.33%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.81%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:3.56%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.33%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.25%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.23%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><span style="font-weight:bold;visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:69.79%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">Average daily balance</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.67%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.33%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.81%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 6,280</p></td><td style="vertical-align:bottom;white-space:nowrap;width:3.56%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.33%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.25%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 19,573</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.23%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:69.79%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">Average daily interest rate</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.67%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.33%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.81%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 0.08</p></td><td style="vertical-align:bottom;white-space:nowrap;width:3.56%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">% </p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.33%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.25%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 0.36</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.23%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">%</p></td></tr><tr><td style="vertical-align:bottom;width:69.79%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">Maximum month-end balance</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.67%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.33%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.81%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 11,320</p></td><td style="vertical-align:bottom;white-space:nowrap;width:3.56%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.33%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">$</p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.25%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 30,430</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.23%;background:#cceeff;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td></tr><tr><td style="vertical-align:bottom;width:69.79%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">Weighted average rate as of December 31</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.67%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><span style="visibility:hidden;"></span></p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.33%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.81%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 0.08</p></td><td style="vertical-align:bottom;white-space:nowrap;width:3.56%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">% </p></td><td style="vertical-align:bottom;white-space:nowrap;width:1.33%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"> </p></td><td style="vertical-align:bottom;white-space:nowrap;width:9.25%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:right;margin:0pt 3pt 0pt 0pt;"> 0.06</p></td><td style="vertical-align:bottom;white-space:nowrap;width:2.23%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">%</p></td></tr></table>
CY2020Q4	qcrh	Prepaid Federal Home Loan Bank Advances PrepaidFederalHomeLoanBankAdvances	55300000
CY2020	qcrh	Gain Loss On Prepayment Of Federal Home Loan Advances GainLossOnPrepaymentOfFederalHomeLoanAdvances	1900000
CY2021Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	7800000
CY2020Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	6600000
CY2021Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	517657000
CY2020Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	743076000
CY2021Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	1150000
CY2020Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	1309000
CY2021Q4	us-gaap	Subordinated Debt SubordinatedDebt	113850000
CY2020Q4	us-gaap	Subordinated Debt SubordinatedDebt	118691000
CY2020Q3	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	50000000.0
CY2020Q3	us-gaap	Debt Instrument Redemption Price Percentage DebtInstrumentRedemptionPricePercentage	1
CY2019Q1	qcrh	Proceeds From Issuance Of Subordinated Long Term Debt Gross ProceedsFromIssuanceOfSubordinatedLongTermDebtGross	65000000.0
CY2019Q1	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	63400000
CY2019Q1	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.05375
CY2019Q3	qcrh	Debt Instrument Fixed Term For Half Yearly Interest Payments DebtInstrumentFixedTermForHalfYearlyInterestPayments	P5Y
CY2019Q1	us-gaap	Debt Instrument Redemption Price Percentage DebtInstrumentRedemptionPricePercentage	1
CY2021Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	1200000
CY2020Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	1300000
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	2055000
CY2020Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	2217000
CY2021Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	38155000
CY2020Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	37993000
CY2021Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	40210000
CY2020Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	40210000
CY2021Q4	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.0243
CY2020Q4	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.0248
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	7290000
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	27237000
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	8255000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15272000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-14530000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6364000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22562000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12707000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14619000
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	25508000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	15391000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	15126000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	7537000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.062
CY2020	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	5943000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.081
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0.010
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	95000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.001
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-436000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.004
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-242000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.003
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-287000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.004
CY2020	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	207000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.003
CY2021	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-383000
CY2019	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	4470000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	-0.062
CY2021	qcrh	Income Tax Rate Reconciliation Income Expenses Of Life Insurance Amount IncomeTaxRateReconciliationIncomeExpensesOfLifeInsuranceAmount	386000
CY2021	qcrh	Effective Income Tax Rate Reconciliation Income Expenses Of Life Insurance Percent EffectiveIncomeTaxRateReconciliationIncomeExpensesOfLifeInsurancePercent	-0.003
CY2020	qcrh	Income Tax Rate Reconciliation Income Expenses Of Life Insurance Amount IncomeTaxRateReconciliationIncomeExpensesOfLifeInsuranceAmount	308000
CY2020	qcrh	Effective Income Tax Rate Reconciliation Income Expenses Of Life Insurance Percent EffectiveIncomeTaxRateReconciliationIncomeExpensesOfLifeInsurancePercent	-0.004
CY2019	qcrh	Income Tax Rate Reconciliation Income Expenses Of Life Insurance Amount IncomeTaxRateReconciliationIncomeExpensesOfLifeInsuranceAmount	360000
CY2019	qcrh	Effective Income Tax Rate Reconciliation Income Expenses Of Life Insurance Percent EffectiveIncomeTaxRateReconciliationIncomeExpensesOfLifeInsurancePercent	-0.005
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	5089000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.042
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3622000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.049
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3668000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.051
CY2021	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	578000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.005
CY2020	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	546000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.007
CY2019	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-93000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.001
CY2020	qcrh	Effective Income Tax Rate Reconciliation Goodwill Impairment EffectiveIncomeTaxRateReconciliationGoodwillImpairment	-105000
CY2020	qcrh	Effective Income Tax Rate Reconciliation Goodwill Impairment Percent EffectiveIncomeTaxRateReconciliationGoodwillImpairmentPercent	0.001
CY2019	qcrh	Effective Income Tax Rate Reconciliation Goodwill Impairment EffectiveIncomeTaxRateReconciliationGoodwillImpairment	-630000
CY2019	qcrh	Effective Income Tax Rate Reconciliation Goodwill Impairment Percent EffectiveIncomeTaxRateReconciliationGoodwillImpairmentPercent	0.009
CY2019	qcrh	Effective Income Tax Rate Reconciliation Intended Liquidation Of Bank Owned Life Insurance EffectiveIncomeTaxRateReconciliationIntendedLiquidationOfBankOwnedLifeInsurance	-790000
CY2019	qcrh	Effective Income Tax Rate Reconciliation Intended Liquidation Of Bank Owned Life Insurance Percent EffectiveIncomeTaxRateReconciliationIntendedLiquidationOfBankOwnedLifeInsurancePercent	0.011
CY2021	qcrh	Effective Income Tax Rate Reconciliation Tax Credit And Adjustments Amount Total EffectiveIncomeTaxRateReconciliationTaxCreditAndAdjustmentsAmountTotal	34000
CY2020	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	456000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0.006
CY2019	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	705000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	-0.003
CY2020	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-215000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	-0.003
CY2019	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	320000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.004
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22562000
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.186
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12707000
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.173
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14619000
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.203
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1893000
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1254000
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1326000
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	787000
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	646000
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	39000
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	391000
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	187000
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2182000
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1893000
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	1700000
CY2021Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	236000
CY2020Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	277000
CY2021Q4	qcrh	Deferred Tax Assets Tax Credit Carryforwards Historic Tax DeferredTaxAssetsTaxCreditCarryforwardsHistoricTax	68000
CY2020Q4	qcrh	Deferred Tax Assets Tax Credit Carryforwards Historic Tax DeferredTaxAssetsTaxCreditCarryforwardsHistoricTax	68000
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	11912000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	10288000
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	19023000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	20016000
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	1354000
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	628000
CY2020Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	16509000
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	17000
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	71000
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	32374000
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	47580000
CY2021Q4	qcrh	Deferred Tax Liabilities Unrealized Gains On Securities Available For Sale And Derivative Instruments DeferredTaxLiabilitiesUnrealizedGainsOnSecuritiesAvailableForSaleAndDerivativeInstruments	747000
CY2020Q4	qcrh	Deferred Tax Liabilities Unrealized Gains On Securities Available For Sale And Derivative Instruments DeferredTaxLiabilitiesUnrealizedGainsOnSecuritiesAvailableForSaleAndDerivativeInstruments	869000
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	6099000
CY2021Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	6462000
CY2020Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	13373000
CY2021Q4	qcrh	Deferred Tax Liabilities Acquisition Fair Value Adjustments DeferredTaxLiabilitiesAcquisitionFairValueAdjustments	3269000
CY2020Q4	qcrh	Deferred Tax Liabilities Acquisition Fair Value Adjustments DeferredTaxLiabilitiesAcquisitionFairValueAdjustments	3351000
CY2021Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	27000
CY2020Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	28000
CY2021Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	1403000
CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	197000
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	677000
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	922000
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	18684000
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	18740000
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	13690000
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	28840000
CY2020Q1	qcrh	Increase Decrease Capitalized Costs For Self Constructed Assets IncreaseDecreaseCapitalizedCostsForSelfConstructedAssets	88000000.0
CY2020Q1	qcrh	Increase Decrease In Deferred Tax Assets Property Plant And Equipment IncreaseDecreaseInDeferredTaxAssetsPropertyPlantAndEquipment	22200000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15272000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-14530000
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	6364000
CY2019	qcrh	Net Deferred Tax Asset Business Acquisition Fair Value Adjustment NetDeferredTaxAssetBusinessAcquisitionFairValueAdjustment	-381000
CY2020	qcrh	Net Deferred Tax Assets Resulting From Sale Of Other Subsidiary NetDeferredTaxAssetsResultingFromSaleOfOtherSubsidiary	-363000
CY2019	qcrh	Net Deferred Tax Liabilities Resulting From Sale Of Bank Subsidiary NetDeferredTaxLiabilitiesResultingFromSaleOfBankSubsidiary	1644000
CY2021	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-122000
CY2020	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	837000
CY2019	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	1433000
CY2021	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-15150000
CY2020	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	13330000
CY2019	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-5772000
CY2021	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.045
CY2019	qcrh	Discretionary Company Contributions DiscretionaryCompanyContributions	0
CY2020	qcrh	Discretionary Company Contributions DiscretionaryCompanyContributions	0
CY2021	qcrh	Discretionary Company Contributions DiscretionaryCompanyContributions	0
CY2021	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount	2446000
CY2020	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount	2520000
CY2019	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount	2443000
CY2020Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	24713000
CY2019Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	19474000
CY2018Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	15029000
CY2021	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	4900000
CY2020	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	3959000
CY2019	us-gaap	Deferred Compensation Arrangement With Individual Contributions By Employer DeferredCompensationArrangementWithIndividualContributionsByEmployer	2474000
CY2021	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	3048000
CY2020	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	2628000
CY2019	us-gaap	Deferred Compensation Arrangement With Individual Compensation Expense DeferredCompensationArrangementWithIndividualCompensationExpense	2072000
CY2021	us-gaap	Deferred Compensation Arrangement With Individual Distribution Paid DeferredCompensationArrangementWithIndividualDistributionPaid	308000
CY2020	us-gaap	Deferred Compensation Arrangement With Individual Distribution Paid DeferredCompensationArrangementWithIndividualDistributionPaid	1348000
CY2019	us-gaap	Deferred Compensation Arrangement With Individual Distribution Paid DeferredCompensationArrangementWithIndividualDistributionPaid	101000
CY2021Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	32353000
CY2020Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	24713000
CY2019Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	19474000
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P10Y
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2352000
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2150000
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2469000
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	407763
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.24
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	426913
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.14
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	469572
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.52
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	22150
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	43.61
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	23350
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	39.12
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	20200
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	36.00
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	60317
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	15.76
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	41650
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	10.67
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	59393
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	12.11
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	1598
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	38.50
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	850
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	19.94
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	3466
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	31.59
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	367998
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	24.46
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	407763
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	22.24
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	426913
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.14
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	318266
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	354899
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	365084
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	10.85
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	10.07
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	11.29
CY2021Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	367998
CY2021Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	318266
CY2021Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	385962000
CY2021Q4	qcrh	Common Equity Tier1 Capital Adequacy Purposes Ratio CommonEquityTier1CapitalAdequacyPurposesRatio	0.0700
CY2021Q4	us-gaap	Common Equity Tier One Capital Required To Be Well Capitalized CommonEquityTierOneCapitalRequiredToBeWellCapitalized	358394000
CY2021Q4	qcrh	Common Equity Tier1 To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio CommonEquityTier1ToBeWellCapitalizedUnderPromptCorrectiveActionProvisionsRatio	0.0650
CY2020Q4	us-gaap	Capital Capital	721004000
CY2020Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	14.95
CY2020Q4	qcrh	Capital Required For Capital Adequacy Excluding Capital Conservation Buffer CapitalRequiredForCapitalAdequacyExcludingCapitalConservationBuffer	385832000
CY2020Q4	qcrh	Capital Required For Capital Adequacy To Risk Weighted Assets Without Capital Conservation Buffer CapitalRequiredForCapitalAdequacyToRiskWeightedAssetsWithoutCapitalConservationBuffer	0.0800
CY2020Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	506404000
CY2020Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	10.50
CY2020Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	482290000
CY2020Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	10.00
CY2020Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	546729000
CY2020Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	11.34
CY2020Q4	qcrh	Tier One Risk Based Capital Required For Capital Adequacy Without Capital Conservation Buffer TierOneRiskBasedCapitalRequiredForCapitalAdequacyWithoutCapitalConservationBuffer	289374000
CY2021Q4	us-gaap	Capital Capital	814629000
CY2021Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	14.77
CY2021Q4	qcrh	Capital Required For Capital Adequacy Excluding Capital Conservation Buffer CapitalRequiredForCapitalAdequacyExcludingCapitalConservationBuffer	441100000
CY2021Q4	qcrh	Capital Required For Capital Adequacy To Risk Weighted Assets Without Capital Conservation Buffer CapitalRequiredForCapitalAdequacyToRiskWeightedAssetsWithoutCapitalConservationBuffer	0.0800
CY2021Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	578944000
CY2021Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	10.50
CY2021Q4	us-gaap	Capital Required To Be Well Capitalized CapitalRequiredToBeWellCapitalized	551375000
CY2021Q4	us-gaap	Capital Required To Be Well Capitalized To Risk Weighted Assets CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	10.00
CY2021Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	631649000
CY2021Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	11.46
CY2021Q4	qcrh	Tier One Risk Based Capital Required For Capital Adequacy Without Capital Conservation Buffer TierOneRiskBasedCapitalRequiredForCapitalAdequacyWithoutCapitalConservationBuffer	330825000
CY2021Q4	qcrh	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Without Capital Conservation Buffer TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssetsWithoutCapitalConservationBuffer	0.0600
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	468669000
CY2021Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	8.50
CY2021Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	441100000
CY2021Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	8.00
CY2021Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	631649000
CY2021Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	10.46
CY2021Q4	qcrh	Tier One Leverage Capital Required For Capital Adequacy Without Capital Conservation Buffer TierOneLeverageCapitalRequiredForCapitalAdequacyWithoutCapitalConservationBuffer	241579000
CY2021Q4	qcrh	Tier One Leverage Capital Required For Capital Adequacy To Average Assets Without Capital Conservation Buffer TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssetsWithoutCapitalConservationBuffer	0.0400
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	241579000
CY2021Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	4.00
CY2021Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized TierOneLeverageCapitalRequiredToBeWellCapitalized	301974000
CY2021Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	5.00
CY2021Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	593494000
CY2021Q4	us-gaap	Common Equity Tier One Capital Ratio CommonEquityTierOneCapitalRatio	10.76
CY2021Q4	qcrh	Common Equity Tier One Capital Required For Capital Adequacy Without Capital Conservation Buffer CommonEquityTierOneCapitalRequiredForCapitalAdequacyWithoutCapitalConservationBuffer	248119000
CY2021Q4	qcrh	Common Equity Tier1 Capital Adequacy Purposes Ratio Without Capital Conservation Buffer CommonEquityTier1CapitalAdequacyPurposesRatioWithoutCapitalConservationBuffer	0.0450
CY2020Q4	qcrh	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Without Capital Conservation Buffer TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssetsWithoutCapitalConservationBuffer	0.0600
CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	409946000
CY2020Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	8.50
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	104636
CY2020Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized TierOneRiskBasedCapitalRequiredToBeWellCapitalized	385832000
CY2020Q4	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	8.00
CY2020Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	546729000
CY2020Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	9.49
CY2020Q4	qcrh	Tier One Leverage Capital Required For Capital Adequacy Without Capital Conservation Buffer TierOneLeverageCapitalRequiredForCapitalAdequacyWithoutCapitalConservationBuffer	230345000
CY2020Q4	qcrh	Tier One Leverage Capital Required For Capital Adequacy To Average Assets Without Capital Conservation Buffer TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssetsWithoutCapitalConservationBuffer	0.0400
CY2020Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	230345000
CY2020Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	4.00
CY2020Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized TierOneLeverageCapitalRequiredToBeWellCapitalized	287931000
CY2020Q4	us-gaap	Tier One Leverage Capital Required To Be Well Capitalized To Average Assets TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets	5.00
CY2020Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	508736000
CY2020Q4	us-gaap	Common Equity Tier One Capital Ratio CommonEquityTierOneCapitalRatio	10.55
CY2020Q4	qcrh	Common Equity Tier One Capital Required For Capital Adequacy Without Capital Conservation Buffer CommonEquityTierOneCapitalRequiredForCapitalAdequacyWithoutCapitalConservationBuffer	217030000
CY2020Q4	qcrh	Common Equity Tier1 Capital Adequacy Purposes Ratio Without Capital Conservation Buffer CommonEquityTier1CapitalAdequacyPurposesRatioWithoutCapitalConservationBuffer	0.0450
CY2020Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	337603000
CY2020Q4	qcrh	Common Equity Tier1 Capital Adequacy Purposes Ratio CommonEquityTier1CapitalAdequacyPurposesRatio	0.0700
CY2020Q4	us-gaap	Common Equity Tier One Capital Required To Be Well Capitalized CommonEquityTierOneCapitalRequiredToBeWellCapitalized	313488000
CY2020Q4	qcrh	Common Equity Tier1 To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio CommonEquityTier1ToBeWellCapitalizedUnderPromptCorrectiveActionProvisionsRatio	0.0650
CY2021Q4	qcrh	Number Of Private Placement Junior Subordinated Debentures Issued NumberOfPrivatePlacementJuniorSubordinatedDebenturesIssued	4
CY2021Q4	qcrh	Number Of Private Placement Junior Subordinated Debentures Assumed Through Acquisitions NumberOfPrivatePlacementJuniorSubordinatedDebenturesAssumedThroughAcquisitions	3
CY2019	qcrh	Five Percentage Of Outstanding Shares FivePercentageOfOutstandingShares	0.05
CY2021	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	293153
CY2020	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	100932
CY2021Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	405915
CY2021	us-gaap	Net Income Loss NetIncomeLoss	98905000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	60582000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	57408000
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.30
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.84
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.65
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.20
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.80
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.60
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15708744
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15771650
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15730016
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	235964
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	180987
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	237759
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15944708
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15952637
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15967775
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	80437
CY2021	qcrh	Subsidiary Banks Performance Guaranty Term Maximum SubsidiaryBanksPerformanceGuarantyTermMaximum	P1Y
CY2020Q4	qcrh	Liability For Potential Obligations Under Performance Guarantees LiabilityForPotentialObligationsUnderPerformanceGuarantees	0
CY2021Q4	qcrh	Liability For Potential Obligations Under Performance Guarantees LiabilityForPotentialObligationsUnderPerformanceGuarantees	0
CY2020Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	3800000
CY2021Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	3800000
CY2021Q4	qcrh	Loans Sold With Recourse Provisions LoansSoldWithRecourseProvisions	20800000
CY2020Q4	qcrh	Loans Sold With Recourse Provisions LoansSoldWithRecourseProvisions	32400000
CY2021Q4	us-gaap	Cash Uninsured Amount CashUninsuredAmount	48200000
CY2020Q4	us-gaap	Cash Uninsured Amount CashUninsuredAmount	59400000
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	300577000
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	178233000
CY2021	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	3486000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	98905000
CY2021Q4	us-gaap	Goodwill Goodwill	74066000
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	9349000
CY2021Q4	us-gaap	Assets Assets	6096132000
CY2020	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	312171000
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	166950000
CY2020	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	55704000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	60582000
CY2020Q4	us-gaap	Goodwill Goodwill	74066000
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	11381000
CY2020Q4	us-gaap	Assets Assets	5705043000
CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	294844000
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	155559000
CY2019	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	7066000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	57408000
CY2019Q4	us-gaap	Goodwill Goodwill	74748000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	14970000
CY2019Q4	us-gaap	Assets Assets	4909050000
CY2021	dei	Auditor Name AuditorName	RSM US LLP
CY2021	dei	Auditor Location AuditorLocation	Davenport, Iowa

Files In Submission

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0001558370-22-003441-index-headers.html	Edgar Link	pending
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$QCRH
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2021 Q4 Form 10-K Financial Statement

#000155837022003441 Filed on March 11, 2022

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$QCRH QCR HOLDINGS INC Stock $qcrh

2021 Q4 Form 10-K Financial Statement

#000155837022003441 Filed on March 11, 2022

Income Statement

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Files In Submission

$QCRH
QCR HOLDINGS INC Stock $qcrh