SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	Sep. 30, 2024
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Organization The Corporation, through its wholly-owned subsidiaries, the Bank and CFS, provides a wide range of banking, financing, fiduciary, and other financial services to its clients. The Corporation and the Bank are subject to the regulations of certain federal and state agencies and undergo periodic examinations by those regulatory authorities. Chemung Risk Management, Inc., (CRM), a wholly-owned subsidiary of the Corporation, was a Nevada-based captive insurance company which insured against certain risks unique to the operations of the Corporation and its subsidiaries and for which insurance may not have been currently available or economically feasible in today's insurance marketplace. CRM was dissolved by the Corporation, effective December 6, 2023. Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in conformity with GAAP for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 8 of Regulation S-X of the Exchange Act. These financial statements include the accounts of the Corporation and its subsidiaries, and all significant intercompany balances and transactions are eliminated in consolidation. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and disclosures provided, and actual results could differ. In the opinion of management, all adjustments (consisting of normal recurring adjustments) and disclosures necessary for the fair presentation of the accompanying consolidated financial statements have been included. The unaudited consolidated financial statements should be read in conjunction with the Corporation's 2023 Annual Report on Form 10-K for the year ended December 31, 2023. The results of operations for any interim periods are not necessarily indicative of the results which may be expected for the entire year or any other period. Reclassifications Amounts in the prior year financial statements are reclassified whenever necessary to conform to the current year's presentation. Recent Accounting Pronouncements In March 2024, the U.S. Securities and Exchange Commission ("SEC") issued SEC Release No. 33-11275, adopting its final rule “The Enhancement and Standardization of Climate-Related Disclosures for Investors.” This rule will require registrants to disclose limited climate-related information in registration statements and annual reports. In April 2024, the SEC voluntarily stayed the implementation of its final rule, and was pending judicial review as of September 30, 2024. As a smaller reporting company, these disclosure requirements, once issued in the final rule, would apply to the Corporation's filings for the fiscal year beginning January 1, 2027. Accounting Standards Pending Adoption In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, enhancing disclosure requirements for reportable segments, focusing on significant segment expenses, the identification of a segment's chief decision making officer, and the metrics used by the chief decision making officer in evaluating segment-level operating performance. The ASU is effective for fiscal years beginning after December 15, 2023. The Corporation will begin providing enhanced segment reporting disclosures in accordance with ASU 2023-07 for the fiscal year ending December 31, 2024, and for interim periods thereafter. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which will require public business entities to disclose annually a tabular rate reconciliation, including specific items such as state and local income tax, tax credits, nontaxable or nondeductible items, among others, and a separate disclosure requiring disaggregation of reconciling items as described above which equal or exceed 5% percent of the product of multiplying income from continuing operations by the applicable statutory income tax rate. The ASU is effective for all public business entities for annual periods beginning after December 31, 2024. Use of Analogous Accounting Standards Under U.S. GAAP, there is no specific guidance related to government assistance received by a for-profit entity that is not in the form of a loan, income tax credit, or revenue from a contract with a customer. Therefore, the Corporation must rely upon analogous accounting standards to determine appropriate treatment when such circumstances arise. During 2023, the Corporation accounted for the recognition of the Employee Retention Tax Credit (ERTC) using ASC 958-605, Revenue Recognition for Not-for-Profit entities. ASC 958-10-15-1 specifies that certain Subtopics within ASC 958-605 also apply to business entities. In November 2023, the FASB added a project relating to receipt of government grants by business entities to its technical agenda, and in April 2024 announced that it will pursue an approach modeled on International Accounting Standards (IAS) 20 - Accounting for Government Grants and Disclosure of Government Assistance. The ERTC is within the scope of this project. The Corporation considers the recognition of the ERTC to be analogous to the stipulations for "conditional contributions" under ASC 958-605-20. Conditional contributions have at least one barrier needing to be overcome before the recipient is entitled to the assets transferred or promised; there must be a right-of-return to the contributor; and barriers to the condition should be measurable. The Corporation recognized the gross amount of the ERTC through non-interest income during the period in which the barrier was overcome, identified as the period during which amended tax returns were filed. The Corporation incurred and recognized additional income tax expense during 2023 in relation to its amended tax returns.