Note 4 - Loans/Leases Receivable - Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
Dec. 31, 2022 USD ($) loan	Dec. 31, 2021 USD ($) loan
Number of Loans / Leases \| loan	3	3
Pre-Modification Recorded Investment	$ 232	$ 2,599
Post-Modification Recorded Investment	$ 232	2,599
Specific Allowance		$ 189
Interest Rate Adjusted Below Market
Number of Loans / Leases \| loan		2
Pre-Modification Recorded Investment		$ 67
Post-Modification Recorded Investment		67
Specific Allowance		$ 7
Direct financing leases \| Payment Deferral [Member]
Number of Loans / Leases \| loan	3
Pre-Modification Recorded Investment	$ 232
Post-Modification Recorded Investment	$ 232
1-4 family real estate \| Extended Maturity [Member]
Number of Loans / Leases \| loan		1
Pre-Modification Recorded Investment		$ 2,532
Post-Modification Recorded Investment		2,532
Specific Allowance		$ 182
1-4 family real estate \| Interest Rate Adjusted Below Market
Number of Loans / Leases \| loan		1
Pre-Modification Recorded Investment		$ 54
Post-Modification Recorded Investment		54
Specific Allowance		$ 6
Consumer \| Interest Rate Adjusted Below Market
Number of Loans / Leases \| loan		1
Pre-Modification Recorded Investment		$ 13
Post-Modification Recorded Investment		13
Specific Allowance		$ 1

Specific allowance of amount of investment in financing receivables modified by troubled debt restructurings.

No definition available.

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Namespace Prefix:	qcrh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

+ Details

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Period Type:	duration

- Definition

Amount, after troubled debt restructuring, of modified financing receivable.

+ References

+ Details

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- Definition

Amount, before troubled debt restructuring, of financing receivable to be modified.

+ References

+ Details

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- Details

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- Details

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- Details

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- Details

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