XML 40 R29.htm IDEA: XBRL DOCUMENT
v3.4.0.3

Note 2 - Investment Securities (Details) - Amortized Cost and Fair Values of General Obligation Bonds by Issuer's State | Mar. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
--- | --- | ---
General Obligation Bonds [Member] |  |
Note 2 - Investment Securities (Details) - Amortized Cost and Fair Values of General Obligation Bonds by Issuer's State [Line Items] |  |
Number of issuers | 82 | 82
Amortized cost | $ 71,391,381 | $ 66,683,832
Fair value | 72,662,999 | 67,778,032
Average exposure per issuer (fair value) | $ 886,134 | $ 826,561
General Obligation Bonds [Member] | IOWA |  |
Note 2 - Investment Securities (Details) - Amortized Cost and Fair Values of General Obligation Bonds by Issuer's State [Line Items] |  |
Number of issuers | 15 | 15
Amortized cost | $ 19,974,438 | $ 19,974,939
Fair value | 20,309,435 | 20,247,108
Average exposure per issuer (fair value) | $ 1,353,962 | $ 1,349,807
General Obligation Bonds [Member] | ILLINOIS |  |
Note 2 - Investment Securities (Details) - Amortized Cost and Fair Values of General Obligation Bonds by Issuer's State [Line Items] |  |
Number of issuers | 10 | 9
Amortized cost | $ 12,665,888 | $ 10,928,700
Fair value | 13,014,865 | 11,264,348
Average exposure per issuer (fair value) | $ 1,301,487 | $ 1,251,594
General Obligation Bonds [Member] | MISSOURI |  |
Note 2 - Investment Securities (Details) - Amortized Cost and Fair Values of General Obligation Bonds by Issuer's State [Line Items] |  |
Number of issuers | 12 | 12
Amortized cost | $ 7,393,378 | $ 7,924,800
Fair value | 7,488,699 | 7,986,856
Average exposure per issuer (fair value) | $ 624,058 | $ 665,571
General Obligation Bonds [Member] | NORTH DAKOTA |  |
Note 2 - Investment Securities (Details) - Amortized Cost and Fair Values of General Obligation Bonds by Issuer's State [Line Items] |  |
Number of issuers | 6 | 5
Amortized cost | $ 16,403,026 | $ 10,890,000
Fair value | 16,616,824 | 11,050,235
Average exposure per issuer (fair value) | $ 2,769,471 | $ 2,210,047
General Obligation Bonds [Member] | Other States [Member] |  |
Note 2 - Investment Securities (Details) - Amortized Cost and Fair Values of General Obligation Bonds by Issuer's State [Line Items] |  |
Number of issuers | 39 | 41
Amortized cost | $ 14,954,651 | $ 16,965,393
Fair value | 15,233,176 | 17,229,485
Average exposure per issuer (fair value) | $ 390,594 | $ 420,231
Revenue Bonds [Member] |  |
Note 2 - Investment Securities (Details) - Amortized Cost and Fair Values of General Obligation Bonds by Issuer's State [Line Items] |  |
Number of issuers | 95 | 92
Amortized cost | $ 212,801,978 | $ 212,705,308
Fair value | 215,631,378 | 214,441,841
Average exposure per issuer (fair value) | $ 2,269,804 | $ 2,330,890
Revenue Bonds [Member] | IOWA |  |
Note 2 - Investment Securities (Details) - Amortized Cost and Fair Values of General Obligation Bonds by Issuer's State [Line Items] |  |
Number of issuers | 27 | 26
Amortized cost | $ 74,013,142 | $ 70,773,660
Fair value | 75,274,793 | 71,659,410
Average exposure per issuer (fair value) | $ 2,787,955 | $ 2,756,131
Revenue Bonds [Member] | MISSOURI |  |
Note 2 - Investment Securities (Details) - Amortized Cost and Fair Values of General Obligation Bonds by Issuer's State [Line Items] |  |
Number of issuers | 42 | 41
Amortized cost | $ 76,260,706 | $ 78,593,590
Fair value | 77,142,220 | 79,015,378
Average exposure per issuer (fair value) | $ 1,836,720 | $ 1,927,204
Revenue Bonds [Member] | Other States [Member] |  |
Note 2 - Investment Securities (Details) - Amortized Cost and Fair Values of General Obligation Bonds by Issuer's State [Line Items] |  |
Number of issuers | 5 | 5
Amortized cost | $ 11,162,489 | $ 11,570,998
Fair value | 11,422,830 | 11,735,678
Average exposure per issuer (fair value) | $ 2,284,566 | $ 2,347,136
Revenue Bonds [Member] | INDIANA |  |
Note 2 - Investment Securities (Details) - Amortized Cost and Fair Values of General Obligation Bonds by Issuer's State [Line Items] |  |
Number of issuers | 17 | 17
Amortized cost | $ 39,342,789 | $ 40,018,381
Fair value | 39,675,326 | 40,210,320
Average exposure per issuer (fair value) | $ 2,333,843 | $ 2,365,313
Revenue Bonds [Member] | KANSAS |  |
Note 2 - Investment Securities (Details) - Amortized Cost and Fair Values of General Obligation Bonds by Issuer's State [Line Items] |  |
Number of issuers | 4 | 3
Amortized cost | $ 12,022,852 | $ 11,748,679
Fair value | 12,116,209 | 11,821,055
Average exposure per issuer (fair value) | $ 3,029,052 | $ 3,940,352

X
- Definition Amount of average exposure (fair value) of securities, per issuer. + References No definition available. + Details
Name: | qcrh_AverageExposurePerIssuerFairValue
Namespace Prefix: | qcrh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before other than temporary impairment (OTTI) accretion, of investments in debt securities not classified as available-for-sale, held-to-maturity, or trading. + References No definition available. + Details
Name: | qcrh_MarketableSecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment
Namespace Prefix: | qcrh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | qcrh_Note2InvestmentSecuritiesDetailsAmortizedCostandFairValuesofGeneralObligationBondsbyIssuersStateLineItems
Namespace Prefix: | qcrh_
Data Type: | xbrli:stringItemType
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 Amount of investments classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(f,g)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_OtherInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | invest_InvestmentGeographicRegionAxis=stpr_IA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentGeographicRegionAxis=stpr_IL
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentGeographicRegionAxis=stpr_MO
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentGeographicRegionAxis=stpr_ND
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentGeographicRegionAxis=qcrh_OtherStatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | invest_InvestmentGeographicRegionAxis=stpr_IN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentGeographicRegionAxis=stpr_KS
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |