Nature of Operations and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Basis of Presentation and Consolidation	Basis of Presentation and Consolidation The condensed consolidated financial statements as of June 30, 2019 and December 31, 2018 and for the three and six months ended June 30, 2019 and 2018, include Eagle Financial Bancorp, Inc. and the Bank, its wholly owned subsidiary. Intercompany transactions and balances have been eliminated in consolidation. The accompanying condensed balance sheet of the Company as of December 31, 2018, which have been derived from audited financial statements, and the unaudited condensed financial statements of the Company as of June 30, 2019 and for the three and six months ended June 30, 2019 and 2018, were prepared in accordance with instructions for form 10Q and Article 8-03 of Regulation S-X and, therefore, do not include information or footnotes necessary for a complete presentation of financial position, results of operations and cash flows in accounting principles generally accepted in the United States of America. Accordingly, these condensed financial statements should be read in conjunction with the financial statements and notes thereto of the Company for the years ended December 31, 2018 included in the Registrants Form 10-K (the “Form 10-K”). Reference is made to the accounting policies of the Company described in the Notes to Financial Statements contained in the Form 10-K. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) which are necessary for a fair presentation of the unaudited condensed financial statements as of June 30, 2019 and the results of operations and cash flows for the three and six months ended June 30, 2019 and 2018. All interim amounts have not been audited and the results of operations for the three and six months ended June 30, 2019 and 2018, herein are not necessarily indicative of the results of operations to be expected for the entire year.
Revenue Recognition	Revenue Recognition Accounting Standards Codification ("ASC") 606, Revenue from Contracts with Customers ("ASC 606"), establishes principles for reporting information about the nature, amount, timing and uncertainty of revenue and cash flows arising from the entity's contracts to provide goods or services to customers. The core principle requires an entity to recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration that it expects to be entitled to receive in exchange for those goods or services recognized as performance obligations are satisfied. The majority of our revenue-generating transactions are not subject to ASC 606, including revenue generated from financial instruments, such as our loans, as well as revenue related to our mortgage banking activities, as these activities are subject to other GAAP discussed elsewhere within our disclosures. Descriptions of our revenue-generating activities that are within the scope of ASC 606, which are presented in our income statements as components of non-interest income are as follows: Service charges on deposit accounts - these represent general service fees for monthly account maintenance and activity- or transaction-based fees and consist of transaction-based revenue, time-based revenue (service period), item-based revenue or some other individual attribute-based revenue. Revenue is recognized when our performance obligation is completed which is generally monthly for account maintenance services or when a transaction has been completed (such as a wire transfer). Payment for such performance obligations are generally received at the time the performance obligations are satisfied.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses, valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, and fair values of financial instruments.
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements ASU No. 2016-01 was issued in January 2016 and applies to all entities that hold financial assets or owe financial liabilities. ASU 2016-01 is intended to improve the recognition and measurement of financial instruments by requiring equity investments to be measured at fair value with changes in fair value recognized in net income; requiring public entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes; requiring separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or the accompanying notes to the financial statements; eliminating the requirement for public business entities to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured and amortized at cost on the balance sheet; and requiring a reporting organization to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instruments specific credit risk when the organization has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. ASU 2016-01 is effective for annual periods and interim periods within those periods, beginning after December 15, 2018. The amendments should be applied by means of a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The Company has adopted ASU 2016-01 on January 1, 2019 and it did not have a material effect on its fair value disclosures and other disclosure requirements. These amendments did have an impact on certain items that were disclosed at fair value that did not utilize the exit price notion when measuring fair value. For additional information on fair value of assets and liabilities, see Note 7. In May 2014, the FASB issued ASU No. 2014-09 “Revenue from Contracts with Customers (Topic 606)” (ASU 2014-09). This update to the ASC is the culmination of efforts by the FASB and the International Accounting Standards Board (IASB) to develop a common revenue standard for U.S. GAAP and International Financial Reporting Standards (IFRS). ASU 2014-09 supersedes Topic 605 – Revenue Recognition and most industry-specific guidance. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance in ASU 2014-09 describes a 5-step process entities can apply to achieve the core principle of revenue recognition and requires disclosures sufficient to enable users of financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers and the significant judgments used in determining that information. Originally, the amendments in ASU 2014-09 were effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period and early application is not allowed. In July 2015, the FASB extended the implementation date to annual reporting periods beginning after December 15, 2017 including interim periods within that reporting period. Transitional guidance is included in the update. Earlier adoption is permitted only as of annual reporting periods beginning after December 31, 2016, including interim periods within that reporting period. The Company’s revenue is comprised of net interest income, which is explicitly excluded from the scope of ASU 2014-09, and non- interest income. The Company has adopted ASU 2014-09 on January 1, 2019 and it did not identify any changes in the timing of revenue recognition when considering the amended accounting guidance. The Company included additional disclosures beginning in the first quarter of 2019 as required by the guidance.

Eagle Financial Bancorp, Inc. 10-Q