Organization And Summary Of Significant Accounting Policies	3 Months Ended
Mar. 31, 2020
Organization And Summary Of Significant Accounting Policies [Abstract]
Organization And Summary Of Significant Accounting Policies	1. ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The accounting and reporting policies followed by Evans Bancorp, Inc. (the “Company”), a financial holding company, and its two direct, wholly-owned subsidiaries: (i) Evans Bank, National Association (the “Bank”), and the Bank’s subsidiaries, Evans National Leasing, Inc. (“ENL”), and Evans National Holding Corp. (“ENHC”); and (ii) Evans National Financial Services, LLC (“ENFS”), and ENFS’s subsidiary, The Evans Agency, LLC (“TEA”), and TEA’s subsidiaries, Frontier Claims Services, Inc. (“FCS”) and ENB Associates Inc. (“ENBA”), in the preparation of the accompanying interim unaudited consolidated financial statements conform with U.S. generally accepted accounting principles (“GAAP”) and with general practice within the industries in which it operates. Except as the context otherwise requires, the Company and its direct and indirect subsidiaries are collectively referred to in this report as the “Company.” The Financial Accounting Standards Board (“FASB”) establishes changes to U.S. GAAP in the form of accounting standards updates (“ASUs”) to the FASB Accounting Standards Codification. The Company considers the applicability and impact of all ASUs when they are issued by FASB. ASUs adopted by the Company during the current fiscal year are not expected to have a material impact on the Company’s consolidated financial position, results of operations, cash flows or disclosures. The accompanying unaudited consolidated financial statements should be read in conjunction with the Audited Consolidated Financial Statements and the Notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2019 (“10-K”). The Company’s significant accounting policies are disclosed in Note 1 to the 10-K. The results of operations for the three month period ended March 31, 2020 are not necessarily indicative of the results to be expected for the full year. The Company’s first quarter 2020 results were impacted by the Coronavirus Disease 2019 ("COVID-19") pandemic, as the United States operates under a state of emergency and New York State has issued orders that, subject to limited exceptions, all individuals stay at home and non‑essential businesses cease all activities. The Company has remained open despite these orders because banks have been identified as providing essential services. The Company has been serving its customers through a variety of channels, including drive-up windows, limited appointment hours for personal meetings at certain branches, mobile banking, on-line banking, remote deposit capture and call centers. During the first quarter of 2020, the Company began processing payment deferrals for up to three months for both consumers and business borrowers, and temporarily waiving certain service fees to assist customers who are experiencing financial hardship. The Federal Reserve decreased the range for the federal funds target rate by 0.5 percent on March 3, 2020, and by another 1.0 percent on March 16, 2020, reaching a current range of 0.0 - 0.25 percent. Economic trends and conditions reflecting the impact of COVID-19 have resulted in an increase in estimate of expected credit losses in the Company’s loan portfolio as the Company believes that COVID-19 could have a material effect on customers’ ability to meet their borrowing obligations.

1. ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The accounting and reporting policies followed by Evans Bancorp, Inc. (the “Company”), a financial holding company, and its two direct, wholly-owned subsidiaries: (i) Evans Bank, National Association (the “Bank”), and the Bank’s subsidiaries, Evans National Leasing, Inc. (“ENL”), and Evans National Holding Corp. (“ENHC”); and (ii) Evans National Financial Services, LLC (“ENFS”), and ENFS’s subsidiary, The Evans Agency, LLC (“TEA”), and TEA’s subsidiaries, Frontier Claims Services, Inc. (“FCS”) and ENB Associates Inc. (“ENBA”), in the preparation of the accompanying interim unaudited consolidated financial statements conform with U.S. generally accepted accounting principles (“GAAP”) and with general practice within the industries in which it operates. Except as the context otherwise requires, the Company and its direct and indirect subsidiaries are collectively referred to in this report as the “Company.”

The Financial Accounting Standards Board (“FASB”) establishes changes to U.S. GAAP in the form of accounting standards updates (“ASUs”) to the FASB Accounting Standards Codification. The Company considers the applicability and impact of all ASUs when they are issued by FASB. ASUs adopted by the Company during the current fiscal year are not expected to have a material impact on the Company’s consolidated financial position, results of operations, cash flows or disclosures.

The accompanying unaudited consolidated financial statements should be read in conjunction with the Audited Consolidated Financial Statements and the Notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2019 (“10-K”). The Company’s significant accounting policies are disclosed in Note 1 to the 10-K.

The results of operations for the three month period ended March 31, 2020 are not necessarily indicative of the results to be expected for the full year.

The Company’s first quarter 2020 results were impacted by the Coronavirus Disease 2019 ("COVID-19") pandemic, as the United States operates under a state of emergency and New York State has issued orders that, subject to limited exceptions, all individuals stay at home and non‑essential businesses cease all activities. The Company has remained open despite these orders because banks have been identified as providing essential services. The Company has been serving its customers through a variety of channels, including drive-up windows, limited appointment hours for personal meetings at certain branches, mobile banking, on-line banking, remote deposit capture and call centers. During the first quarter of 2020, the Company began processing payment deferrals for up to three months for both consumers and business borrowers, and temporarily waiving certain service fees to assist customers who are experiencing financial hardship. The Federal Reserve decreased the range for the federal funds target rate by 0.5 percent on March 3, 2020, and by another 1.0 percent on March 16, 2020, reaching a current range of 0.0 - 0.25 percent. Economic trends and conditions reflecting the impact of COVID-19 have resulted in an increase in estimate of expected credit losses in the Company’s loan portfolio as the Company believes that COVID-19 could have a material effect on customers’ ability to meet their borrowing obligations.