Note 1 - Summary of Significant Accounting Policies	6 Months Ended
Dec. 31, 2025
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]	Note 1 – Summary of Significant Accounting Policies: Nature of Operations: Consumers Bancorp, Inc. (the Company) is a bank holding company headquartered in Minerva, Ohio that provides, through its banking subsidiary, Consumers National Bank (the Bank), a broad array of products and services throughout its primary market area of Carroll, Columbiana, Jefferson, Mahoning, Stark, Summit, and contiguous counties in Ohio, Pennsylvania, and West Virginia. The Bank’s business involves attracting deposits from businesses and individual customers and using such deposits to originate commercial, mortgage and consumer loans in its primary market area. CNB Investment Co. is a wholly-owned subsidiary of the Bank that was formed in November 2024 for the primary purpose of investing in municipal securities and is disclosed as part of the Bank. Basis of Presentation: The consolidated financial statements for interim periods are unaudited and reflect all adjustments (consisting of only normal recurring adjustments), which, in the opinion of management, are necessary to present fairly the financial position and results of operations and cash flows for the periods presented. The unaudited financial statements are presented in accordance with the requirements of Form 10-Q and do not include all disclosures normally required by accounting principles generally accepted in the United States of America. The financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Form 10-K for the year ended June 30, 2025. The results of operations for the interim period disclosed herein are not necessarily indicative of the results that may be expected for a full year. The consolidated financial statements include the accounts of the Company and the Bank. All significant inter-company transactions and accounts have been eliminated in consolidation. Segment Information: The Company adopted Accounting Standards Update 2023-07 “Segment Reporting (Topic 280) - Improvement to Reportable Segment Disclosures” (ASU 2023-07) as of January 1, 2025. The Company's operations have been evaluated for segment reporting and management has determined operations are managed along one operating segment, banking. While the Company’s chief operating decision maker (CODM) monitors the revenue streams of the Company’s various products and services, operations are managed, and financial performance is evaluated on a Company-wide basis. The Company has determined that all of its financial service operations meet the aggregation criteria of ASC 280, Segment Reporting, as its current operating model is structured whereby financial service operations serve a similar base of retail and commercial customers utilizing a company-wide offering of similar products and services managed through similar processes that are collectively reviewed by the Company's Chief Executive Officer, who has been identified as the CODM. Therefore, all the Company’s financial service operations are considered by the CODM to be aggregated in one reportable operating segment. Our CODM evaluates interest and noninterest income streams and credit losses from our various products and services, while expense activities, including interest expense and noninterest expense, are managed, and financial performance is evaluated, on a Company-wide basis. As a result, detailed profitability information for each interest and noninterest income stream is not used to allocate resources or in assessing performance. Rather, the CODM uses consolidated net income to assess performance by comparing it to and monitoring it against budgeted and prior year results. This information is used to manage resources to drive business and net income growth, including investment in key strategic priorities, as well as to determine our ability to return capital to shareholders. Segment assets represent total assets on our Consolidated Balance Sheets and segment net income represents net income on our Consolidated Statements of Income. All the Company's earnings relate to its operations within the United States. Reclassifications: Certain items in prior financial statements have been reclassified to conform to the current presentation. Any reclassifications had no impact on prior year net income or shareholders’ equity.

Note 1 - Summary of Significant Accounting Policies

6 Months Ended

Dec. 31, 2025

Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]

Note 1 – Summary of Significant Accounting Policies:

Nature of Operations: Consumers Bancorp, Inc. (the Company) is a bank holding company headquartered in Minerva, Ohio that provides, through its banking subsidiary, Consumers National Bank (the Bank), a broad array of products and services throughout its primary market area of Carroll, Columbiana, Jefferson, Mahoning, Stark, Summit, and contiguous counties in Ohio, Pennsylvania, and West Virginia. The Bank’s business involves attracting deposits from businesses and individual customers and using such deposits to originate commercial, mortgage and consumer loans in its primary market area. CNB Investment Co. is a wholly-owned subsidiary of the Bank that was formed in November 2024 for the primary purpose of investing in municipal securities and is disclosed as part of the Bank.

Basis of Presentation: The consolidated financial statements for interim periods are unaudited and reflect all adjustments (consisting of only normal recurring adjustments), which, in the opinion of management, are necessary to present fairly the financial position and results of operations and cash flows for the periods presented. The unaudited financial statements are presented in accordance with the requirements of Form 10-Q and do not include all disclosures normally required by accounting principles generally accepted in the United States of America. The financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Form 10-K for the year ended June 30, 2025. The results of operations for the interim period disclosed herein are not necessarily indicative of the results that may be expected for a full year.

The consolidated financial statements include the accounts of the Company and the Bank. All significant inter-company transactions and accounts have been eliminated in consolidation.

Segment Information: The Company adopted Accounting Standards Update 2023-07 “Segment Reporting (Topic 280) - Improvement to Reportable Segment Disclosures” (ASU 2023-07) as of January 1, 2025. The Company's operations have been evaluated for segment reporting and management has determined operations are managed along one operating segment, banking. While the Company’s chief operating decision maker (CODM) monitors the revenue streams of the Company’s various products and services, operations are managed, and financial performance is evaluated on a Company-wide basis. The Company has determined that all of its financial service operations meet the aggregation criteria of ASC 280, Segment Reporting, as its current operating model is structured whereby financial service operations serve a similar base of retail and commercial customers utilizing a company-wide offering of similar products and services managed through similar processes that are collectively reviewed by the Company's Chief Executive Officer, who has been identified as the CODM. Therefore, all the Company’s financial service operations are considered by the CODM to be aggregated in one reportable operating segment.

Our CODM evaluates interest and noninterest income streams and credit losses from our various products and services, while expense activities, including interest expense and noninterest expense, are managed, and financial performance is evaluated, on a Company-wide basis. As a result, detailed profitability information for each interest and noninterest income stream is not used to allocate resources or in assessing performance. Rather, the CODM uses consolidated net income to assess performance by comparing it to and monitoring it against budgeted and prior year results. This information is used to manage resources to drive business and net income growth, including investment in key strategic priorities, as well as to determine our ability to return capital to shareholders. Segment assets represent total assets on our Consolidated Balance Sheets and segment net income represents net income on our Consolidated Statements of Income. All the Company's earnings relate to its operations within the United States.

Reclassifications: Certain items in prior financial statements have been reclassified to conform to the current presentation. Any reclassifications had no impact on prior year net income or shareholders’ equity.