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Note 9 - Federal Home Loan Bank Advances (Details) (USD $) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Jun. 30, 2013 | Mar. 31, 2013
Note 9 - Federal Home Loan Bank Advances (Details) [Line Items] |  |  |  |
Federal Home Loan Bank Stock | $ 11,279,000 us-gaap_FederalHomeLoanBankStock | 12,343,500 us-gaap_FederalHomeLoanBankStock |  |
Advances from Federal Home Loan Banks | 203,500,000 us-gaap_AdvancesFromFederalHomeLoanBanks | 231,350,000 us-gaap_AdvancesFromFederalHomeLoanBanks |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Weighted Average Interest Rate |  |  | 4.12%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankWeightedAverageInterestRate | 4.82%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankWeightedAverageInterestRate
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Repayment and Penalties | 0 us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresRepaymentAndPenalties |  |  |
Advances from Federal Home Loan Banks, Short-term | 37,000,000 qcrh_AdvancesFromFederalHomeLoanBanksShortTerm | 42,000,000 qcrh_AdvancesFromFederalHomeLoanBanksShortTerm |  |
Modified Advances [Member] |  |  |  |
Note 9 - Federal Home Loan Bank Advances (Details) [Line Items] |  |  |  |
Advances from Federal Home Loan Banks |  |  | 20,000,000 us-gaap_AdvancesFromFederalHomeLoanBanks / us-gaap_DebtInstrumentAxis = qcrh_ModifiedAdvancesMember |
Securities (Assets) [Member] |  |  |  |
Note 9 - Federal Home Loan Bank Advances (Details) [Line Items] |  |  |  |
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged | 0 us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1 / us-gaap_FairValueByAssetClassAxis = us-gaap_SecuritiesAssetsMember | 87,061,601 us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1 / us-gaap_FairValueByAssetClassAxis = us-gaap_SecuritiesAssetsMember |  |
Loans Receivable [Member] | Minimum [Member] |  |  |  |
Note 9 - Federal Home Loan Bank Advances (Details) [Line Items] |  |  |  |
FHLB Collateral Maintenance Levels | 125.00%qcrh_FHLBCollateralMaintenanceLevels / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |
Loans Receivable [Member] | Maximum [Member] |  |  |  |
Note 9 - Federal Home Loan Bank Advances (Details) [Line Items] |  |  |  |
FHLB Collateral Maintenance Levels | 333.00%qcrh_FHLBCollateralMaintenanceLevels / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |
Loans Receivable [Member] |  |  |  |
Note 9 - Federal Home Loan Bank Advances (Details) [Line Items] |  |  |  |
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged | $ 499,084,047 us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1 / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember | 543,076,034 us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresCollateralPledged1 / us-gaap_FairValueByAssetClassAxis = us-gaap_LoansReceivableMember |  |
Minimum [Member] |  |  |  |
Note 9 - Federal Home Loan Bank Advances (Details) [Line Items] |  |  |  |
Federal Home Loan Bank, Advances, Maturity Period, Fixed Rate | 14 days | 1 day |  |
Maximum [Member] |  |  |  |
Note 9 - Federal Home Loan Bank Advances (Details) [Line Items] |  |  |  |
Federal Home Loan Bank, Advances, Maturity Period, Fixed Rate | 1 month | 6 months |  |

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- Definition Amount of short-term borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References No definition available. + Details
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- Definition FHLB collateral maintenance levels. + References No definition available. + Details
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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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- Definition Describes the weighted average interest rate applicable to the specific advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of the collateral pledged in support of federal home loan bank advances outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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- Definition Amount of repayments and penalties incurred in the satisfaction or roll-over of Federal Home Loan Bank (FHLB) advance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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- Definition Maturity period on fixed rate advances made and reported by Federal Home Loan Bank (FHLBank), in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 325 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6478792&loc=d3e63345-112809 + Details
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