XML 38 R27.htm IDEA: XBRL DOCUMENT
v3.19.2

NOTE 2 - INVESTMENT SECURITIES (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2019 USD ($) state item | Jun. 30, 2018 USD ($) | Jun. 30, 2019 USD ($) state item | Jun. 30, 2018 USD ($) | Dec. 31, 2018 USD ($) state item
Number of securities | item | 587 |  | 587 |  |
Available-for-sale, unrealized loss positions, qualitative disclosure, number of positions | item | 69 |  | 69 |  |
Aggregate losses of securities (as a percent) | 0.20% |  | 0.20% |  |
Available-for-sale, unrealized loss positions, qualitative disclosure, number of positions, greater than or equal to one year | item | 67 |  | 67 |  |
Other than temporary impairment losses, investments | $ | $ 0 | $ 0 | $ 0 | $ 0 |
Sale of securities | $ |  | $ 0 | $ 4,661 | $ 0 |
Number Of Charters Owning Municipal Securities | item |  |  | 5 |  |
Municipal Bonds | General Obligation Bonds |  |  |  |  |
Number of issuers | item | 101 |  | 101 |  | 110
Other investments | $ | $ 81,000 |  | $ 81,000 |  | $ 86,400
Number of states holding investments | state | 24 |  | 24 |  | 26
Municipal Bonds | General Obligation Bonds | Minimum |  |  |  |  |
Other investments | $ | $ 5,000 |  | $ 5,000 |  | $ 5,000
Municipal Bonds | General Obligation Bonds | Aggregate Fair Value Exceeding 5 Million [Member] |  |  |  |  |
Number of states holding investments | state | 6 |  | 6 |  | 6
Municipal Bonds | Revenue Bonds |  |  |  |  |
Number of issuers | item | 159 |  | 159 |  | 160
Other investments | $ | $ 377,300 |  | $ 377,300 |  | $ 371,900
Number of states holding investments | 19 |  | 19 |  | 19
Municipal Bonds | Revenue Bonds | Minimum |  |  |  |  |
Other investments | $ | $ 5,000 |  | $ 5,000 |  | $ 5,000
Municipal Bonds | Revenue Bonds | Aggregate Fair Value Exceeding 5 Million [Member] |  |  |  |  |
Number of states holding investments | 7 |  | 7 |  | 7

X
- Definition The aggregate depreciation from amortized cost basis as a percent. + References No definition available. + Details
Name: | qcrh_AggregateDepreciationFromAmortizedCostBasisPercent
Namespace Prefix: | qcrh_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of the company's that own the company's municipal securities. + References No definition available. + Details
Name: | qcrh_NumberOfChartersOwningMunicipalSecurities
Namespace Prefix: | qcrh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of issuers of debt securities. + References No definition available. + Details
Name: | qcrh_NumberOfIssuers
Namespace Prefix: | qcrh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of securities. + References No definition available. + Details
Name: | qcrh_NumberOfSecurities
Namespace Prefix: | qcrh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of states investments are held in. + References No definition available. + Details
Name: | qcrh_NumberOfStatesInvestmentsHeldIn
Namespace Prefix: | qcrh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of investment positions in available-for-sale investments in a continuous unrealized loss position for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27290-111563 + Details
Name: | us-gaap_AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of investment positions in available-for-sale investments that have been in a continuous unrealized loss position for greater than or equal to a year for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement. + References No definition available. + Details
Name: | us-gaap_AvailableforsaleSecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositionsGreaterThanOrEqualToOneYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 8A -URI http://asc.fasb.org/extlink&oid=118954083&loc=SL6284422-111562 + Details
Name: | us-gaap_ImpairmentOfInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_InvestmentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. + References No definition available. + Details
Name: | us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_MunicipalBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentAxis=qcrh_GeneralObligationBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=qcrh_AggregateFairValueExceeding5MillionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentAxis=qcrh_RevenueBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |