No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

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-Section 45
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ 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 210.5-02.22(a)(1))
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Period Type:	instant

- Definition

Period of time between issuance and maturity of debt instrument, 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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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
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Note 11 - Junior Subordinated Debentures (Details) - USD ($)	3 Months Ended		12 Months Ended
	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Feb. 29, 2004
Note 11 - Junior Subordinated Debentures (Details) [Line Items]
Debt Instrument, Face Amount	$ 40,725,000		$ 40,725,000
Extinguishment of Debt, Amount		$ 103,500,000
Gains (Losses) on Extinguishment of Debt	$ 209,416	$ (6,900,000)
Debt Instrument, Basis Spread on Variable Rate			3.10%
Debt Instrument, Interest Rate, Effective Percentage	2.60%		2.60%	2.50%
Note Payable to QCR Holdings Capital Trust II [Member]
Note 11 - Junior Subordinated Debentures (Details) [Line Items]
Debt Instrument, Face Amount					$ 12,372,000
Junior Subordinated Debt [Member]
Note 11 - Junior Subordinated Debentures (Details) [Line Items]
Debt Instrument, Term			30 years
Junior Subordinated Debt [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Note 11 - Junior Subordinated Debentures (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.85%
Junior Subordinated Debt [Member] \| Note Payable to QCR Holdings Capital Trust II [Member]
Note 11 - Junior Subordinated Debentures (Details) [Line Items]
Extinguishment of Debt, Amount			$ 2,100,000
Gains (Losses) on Extinguishment of Debt			$ 300,000
Debt Instrument, Interest Rate, Effective Percentage	3.18%		3.18%