XML 46 R28.htm IDEA: XBRL DOCUMENT
v3.19.3

NOTE 1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) | Sep. 30, 2019 subsidiary
--- | ---
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |
Number of subsidiaries commercial banks | 5

X
- Definition Represents the number of subsidiaries. + References No definition available. + Details
Name: | qcrh_NumberOfSubsidiaries
Namespace Prefix: | qcrh_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration