Nature of Operations and Summary of Significant Accounting Policies (Policies)	3 Months Ended
Mar. 31, 2026
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation The consolidated financial statements as of and for the three months ended March 31, 2026, include the accounts of the Company and the Bank, its wholly-owned subsidiary. All intercompany transactions and balances have been eliminated in consolidation. The financial statements for the three months ended March 31, 2025, represent the Bank only, as the conversion to stock form, including the formation of Security Midwest Bancorp, Inc. was completed on July 31, 2025. References herein to the “Company” for periods prior to the completion of the stock conversion should be deemed to refer to the “Bank.”
Use of Estimates	Use of Estimates The preparation of condensed consolidated 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 credit losses, valuation of real estate acquired in connection with foreclosures or in satisfaction of loans and fair values of financial instruments.
Investment Securities	Investment Securities Investment securities classified and accounted for as available for sale may be sold prior to maturity for asset/liability management purposes or may be sold in response to changes in interest rates or changes in prepayment risk, and to increase regulatory capital or other similar factors. Available-for-sale securities are carried at fair value with any adjustments to fair value, after tax, reported in other comprehensive income (loss). Held-to-maturity securities consisted of certificates of deposit that management had the intent and ability to hold to maturity. Held-to-maturity securities were carried at amortized cost. The Company had no securities held-to-maturity or held for trading purposes as of March 31, 2026 and December 31, 2025. Purchase premiums and discounts are recognized in interest income using the interest method over the terms of the securities, identified as the call date as to premiums and the maturity date as to discounts. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method. The Company’s accounting treatment for a credit-related impairment, when the fair value of securities is below amortized cost, is set forth within this Note 1 at Allowance for Credit Losses. The Company recognized no credit-related impairments on debt securities during the three months ended March 31, 2026 and 2025.
Loans Held for Sale	Loans Held for Sale Loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or fair value, as determined by aggregate outstanding commitments from investors or current investor yield requirements. Net unrealized losses are recognized through a valuation allowance by charges to income. Loans held for sale are carried at cost at March 31, 2026. The Company had no loans held for sale at December 31, 2025.
Loans	Loans Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at their outstanding principal balances adjusted for unearned income, charge-offs net of recoveries, the allowance for credit losses and any unamortized deferred fees or costs on originated loans and unamortized premiums or discounts on purchased loans. For loans amortized at cost, interest income is accrued based on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, as well as premiums and discounts, are deferred and amortized as a level yield adjustment over the respective term of the loan. For all loan portfolio segments except residential and consumer loans, the Company promptly charges-off loans, or portions thereof, when available information confirms that specific loans are uncollectible based on information that includes, but is not limited to, (1) the deteriorating financial condition of the borrower, (2) declining collateral values, and/or (3) legal action, including bankruptcy, that impairs the borrower’s ability to adequately meet its obligations. For loans that are considered to be solely collateral dependent, a partial charge-off is recorded when a loss has been confirmed by an updated appraisal or other appropriate valuation of the collateral. The Company charges-off residential and consumer loans, or portions thereof, when management reasonably determines the amount of the loss. The Company adheres to delinquency thresholds established by applicable regulatory guidance to determine the charge-off timeframe for these loans. Loans at these delinquency thresholds for which the Company can clearly document that the loan is both well-secured and in the process of collection, such that collection will occur regardless of delinquency status, need not be charged off. Loans are placed on nonaccrual status when past due 90 days or earlier, or when management considers collection of principal and interest is unlikely. For all classes, all interest accrued but not collected for loans that are placed on nonaccrual or charged off is reversed against interest income. The interest on these loans is accounted for on the cash basis or cost recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Nonaccrual loans are returned to accrual status when, in the opinion of management, the financial position of the borrower indicates there is no longer any reasonable doubt as to the timely collection of interest or principal. The Company requires a period of satisfactory performance of not less than six months before returning a nonaccrual loan to accrual status. When cash payments are received on collateral dependent loans in each loan class, the Company records the payment as interest income unless collection of the remaining recorded principal amount is doubtful, at which time payments are used to reduce the principal balance of the loan. Loans restructured due to financial difficulties of the borrower recognize interest income on an accrual basis at the renegotiated rate if the loan is in compliance with the modified terms, no principal reduction has been granted and the loan has demonstrated the ability to perform in accordance with the renegotiated terms for a period of at least six months.
Allowance for Credit Losses	Allowance for Credit Losses The allowance for credit losses is established as losses are estimated to have occurred through a provision for credit losses charged to income. Credit losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. The allowance for credit losses is evaluated on a regular basis by management and is based upon management’s periodic review of the collectibility of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. The Company accounts for the allowance for credit losses in accordance with Accounting Standards Update (ASU) No. 2016-13 Financial Instruments—Credit Losses (Topic 326). ASC 326 requires a “current expected credit loss” (CECL) methodology that reflects expected credit losses over the lives of the credit instruments and requires consideration of a broad range of information to estimate credit losses. ASC 326 requires an estimate of all expected credit losses for financial assets measured at amortized cost, including loans and held-to-maturity debt securities, based on historical experience, current conditions, and reasonable and supportable forecasts. The ASU also applies to off-balance sheet credit exposures, such as loan commitments, standby letters of credit, financial guarantees, and other similar instruments. Available-for-sale securities For available for sale securities in an unrealized loss position, the Company first assesses whether it intends to sell, or it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security’s amortized cost basis is written down to fair value through income. For securities available-for-sale that do not meet the above criteria, the Company evaluates whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, the Company considers the extent to which fair value is less than amortized cost and adverse conditions related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of the cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income (loss), net of tax. The Company elected to use zero loss estimates for securities issued by U.S. government entities and agencies. These securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major agencies and have a long history of no credit losses. Management concluded that no allowance for credit losses was required on available-for-sale securities at March 31, 2026 and December 31, 2025. Accrued interest receivable on available-for-sale securities totaled approximately $191,000 and $210,000 at March 31, 2026 and December 31, 2025, respectively, and is included within accrued interest receivable on the balance sheet. This amount is excluded from the estimate of expected credit losses. Loans The allowance for credit losses (ACL) is a valuation allowance that is deducted from the loans’ amortized cost basis to present the net amount expected to be collected on the loans. Management’s determination of the adequacy of the ACL is based on the assessment of the expected credit losses on loans over the expected life of the loan. The ACL is increased by provision expense and decreased by charge-offs, net of recoveries of amounts previously charged off and expected to be charged off. The Company made the policy election to exclude accrued interest receivable on loans from the estimate of credit losses. Accrued interest receivable on loans totaled approximately $556,000 and $503,000 at March 31, 2026 and December 31, 2025, respectively, and is included within accrued interest receivable on the balance sheet. Management estimates the ACL balance using relevant available information from both internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. Historical credit loss experience of a defined peer group, by affiliate, paired with economic forecasts provide the basis for the quantitatively modeled estimates of expected credit losses. The Company adjusts its quantitative model, as necessary, to reflect conditions not already considered by the quantitative model. These adjustments are commonly known as the qualitative factors. The ACL is measured on a collective (pool) basis when similar risk characteristics exist. The Company uses the average historical loss method to measure the quantitative portion of the ACL over four-quarter forecast and four-quarter reversion periods. Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. When management determines that foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for estimated selling costs as appropriate. Expected credit losses are estimated over the contractual term of the loans, adjusted for expected prepayments when appropriate. The contractual term excludes expected extensions, renewals and modifications unless either of the following applies: management has a reasonable expectation at the reporting date that a restructuring will be executed with an individual borrower experiencing financial difficulties, or the extension or renewal options are included in the original or modified contract at the reporting date and are not unconditionally cancellable by the Company. Unfunded Commitments The Company estimates expected credit losses over the contractual period in which the Company is exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Company. The ACL on unfunded commitments is adjusted through the provision for credit loss expense. The estimate includes consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded over its estimated life consistent with the related ACL methodology. The allowance for credit losses on unfunded commitments is included within accrued expenses and other liabilities on the consolidated balance sheets.
Income Taxes	Income Taxes The Company accounts for income taxes in accordance with income tax accounting guidance (ASC 740, Income Taxes). The income tax accounting guidance results in two components of income tax expense: current and deferred. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of the enacted tax law to the taxable income or excess of deductions over revenues. The Company determines deferred income taxes using the liability (or balance sheet) method. Under this method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax basis of assets and liabilities, and enacted changes in tax rates and laws are recognized in the period in which they occur. Deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Deferred tax assets are reduced by a valuation allowance if, based on the weight of evidence available, it is more likely than not that some portion or all of a deferred tax asset will not be realized. Tax positions are recognized if it is more likely than not, based on the technical merits, that the tax position will be realized or sustained upon examination. The term more likely than not means a likelihood of more than 50 percent; the terms examined and upon examination also include resolution of the related appeals or litigation processes, if any. A tax position that meets the more-likely-than-not recognition threshold is initially and subsequently measured as the largest amount of tax benefit that has a greater than 50 percent likelihood of being realized upon settlement with a taxing authority that has full knowledge of all relevant information. The determination of whether or not a tax position has met the more-likely than-not recognition threshold considers the facts, circumstances and information available at the reporting date and is subject to management’s judgment.
Segment Information	Segment Information The Company has one reportable operating segment, commercial banking. The Company’s chief operating decision maker (CODM) is the President of the Company, who monitors revenue streams of our products and services. The identifiable segment operations are managed and financial performance is evaluated on a Company-wide basis. The commercial banking segment provides an array of financial products and services including commercial, residential mortgage and consumer lending activities, along with commercial and consumer savings and banking services, to individual and business customers through its office locations in Illinois. The accounting policies of the banking segment are described in management's discussion and analysis of financial condition and results of operations of the Company. The CODM assesses performance for the banking segment and decides how to allocate resources based on net income (reported on the consolidated statements of income). The measure of segment assets is reported on the consolidated balance sheets as total assets. The CODM uses net income to evaluate income generated from segment assets (return on average assets) in deciding whether to reinvest profits into the commercial banking segment. Net income is also used by the CODM to monitor budget versus actual results. Net income as well as other common Company-wide financial performance and credit quality metrics, such as return on average assets, return on average equity, earnings per common share, net interest margin, operating efficiency and nonaccrual loans to total loans, among others, are used for competitive analysis by benchmarking to the Company’s competitors as well as used in assessing the performance of the segment and for establishing management’s compensation. Loans, investments and deposits provide revenue in the banking operation. Interest expense, provision for credit losses, salaries and employee benefits and data processing are the significant expense components in the banking operation.
Subsequent Events	Subsequent Events Management has reviewed the Company's operations for potential disclosure or financial statement impacts related to events occurring after March 31, 2026, but prior to the release of the unaudited condensed consolidated financial statements contained in this quarterly report on Form 10-Q were issued. There were no additional subsequent event disclosures or financial statement impacts related to events occurring after March 31, 2026, that warranted adjustment to or disclosure in these unaudited condensed consolidated financial statements.

Nature of Operations and Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2026

The consolidated financial statements as of and for the three months ended March 31, 2026, include the accounts of the Company and the Bank, its wholly-owned subsidiary. All intercompany transactions and balances have been eliminated in consolidation. The financial statements for the three months ended March 31, 2025, represent the Bank only, as the conversion to stock form, including the formation of Security Midwest Bancorp, Inc. was completed on July 31, 2025. References herein to the “Company” for periods prior to the completion of the stock conversion should be deemed to refer to the “Bank.”

Use of Estimates

The preparation of condensed consolidated 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 credit losses, valuation of real estate acquired in connection with foreclosures or in satisfaction of loans and fair values of financial instruments.

Investment Securities

Investment securities classified and accounted for as available for sale may be sold prior to maturity for asset/liability management purposes or may be sold in response to changes in interest rates or changes in prepayment risk, and to increase regulatory capital or other similar factors. Available-for-sale securities are carried at fair value with any adjustments to fair value, after tax, reported in other comprehensive income (loss).

Held-to-maturity securities consisted of certificates of deposit that management had the intent and ability to hold to maturity. Held-to-maturity securities were carried at amortized cost. The Company had no securities held-to-maturity or held for trading purposes as of March 31, 2026 and December 31, 2025.

Purchase premiums and discounts are recognized in interest income using the interest method over the terms of the securities, identified as the call date as to premiums and the maturity date as to discounts. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method.

The Company’s accounting treatment for a credit-related impairment, when the fair value of securities is below amortized cost, is set forth within this Note 1 at Allowance for Credit Losses.

The Company recognized no credit-related impairments on debt securities during the three months ended March 31, 2026 and 2025.

Loans Held for Sale

Loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or fair value, as determined by aggregate outstanding commitments from investors or current investor yield requirements. Net unrealized losses are recognized through a valuation allowance by charges to income. Loans held for sale are carried at cost at March 31, 2026. The Company had no loans held for sale at December 31, 2025.

Loans

Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at their outstanding principal balances adjusted for unearned income, charge-offs net of recoveries, the allowance for credit losses and any unamortized deferred fees or costs on originated loans and unamortized premiums or discounts on purchased loans.

For loans amortized at cost, interest income is accrued based on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, as well as premiums and discounts, are deferred and amortized as a level yield adjustment over the respective term of the loan. For all loan portfolio segments except residential and consumer loans, the Company promptly charges-off loans, or portions thereof, when available information confirms that specific loans are uncollectible based on information that includes, but is not limited to, (1) the deteriorating financial condition of the borrower, (2) declining collateral values, and/or (3) legal action, including bankruptcy, that impairs the borrower’s ability to adequately meet its obligations. For loans that are considered to be solely collateral dependent, a partial charge-off is recorded when a loss has been confirmed by an updated appraisal or other appropriate valuation of the collateral.

The Company charges-off residential and consumer loans, or portions thereof, when management reasonably determines the amount of the loss. The Company adheres to delinquency thresholds established by applicable regulatory guidance to determine the charge-off timeframe for these loans.

Loans at these delinquency thresholds for which the Company can clearly document that the loan is both well-secured and in the process of collection, such that collection will occur regardless of delinquency status, need not be charged off.

Loans are placed on nonaccrual status when past due 90 days or earlier, or when management considers collection of principal and interest is unlikely. For all classes, all interest accrued but not collected for loans that are placed on nonaccrual or charged off is reversed against interest income. The interest on these loans is accounted for on the cash basis or cost recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.

Nonaccrual loans are returned to accrual status when, in the opinion of management, the financial position of the borrower indicates there is no longer any reasonable doubt as to the timely collection of interest or principal. The Company requires a period of satisfactory performance of not less than six months before returning a nonaccrual loan to accrual status.

When cash payments are received on collateral dependent loans in each loan class, the Company records the payment as interest income unless collection of the remaining recorded principal amount is doubtful, at which time payments are used to reduce the principal balance of the loan. Loans restructured due to financial difficulties of the borrower recognize interest income on an accrual basis at the renegotiated rate if the loan is in compliance with the modified terms, no principal reduction has been granted and the loan has demonstrated the ability to perform in accordance with the renegotiated terms for a period of at least six months.

Allowance for Credit Losses

The allowance for credit losses is established as losses are estimated to have occurred through a provision for credit losses charged to income. Credit losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. The allowance for credit losses is evaluated on a regular basis by management and is based upon management’s periodic review of the collectibility of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower’s ability to repay, estimated value of any underlying collateral and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available.

The Company accounts for the allowance for credit losses in accordance with Accounting Standards Update (ASU) No. 2016-13 Financial Instruments—Credit Losses (Topic 326). ASC 326 requires a “current expected credit loss” (CECL) methodology that reflects expected credit losses over the lives of the credit instruments and requires consideration of a broad range of information to estimate credit losses. ASC 326 requires an estimate of all expected credit losses for financial assets measured at amortized cost, including loans and held-to-maturity debt securities, based on historical experience, current conditions, and reasonable and supportable forecasts. The ASU also applies to off-balance sheet credit exposures, such as loan commitments, standby letters of credit, financial guarantees, and other similar instruments.

Available-for-sale securities

For available for sale securities in an unrealized loss position, the Company first assesses whether it intends to sell, or it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security’s amortized cost basis is written down to fair value through income. For securities available-for-sale that do not meet the above criteria, the Company evaluates whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, the Company considers the extent to which fair value is less than amortized cost and adverse conditions related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security.

If the present value of the cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance for credit losses is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income (loss), net of tax. The Company elected to use zero loss estimates for securities issued by U.S. government entities and agencies. These securities are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major agencies and have a long history of no credit losses. Management concluded that no allowance for credit losses was required on available-for-sale securities at March 31, 2026 and December 31, 2025.

Accrued interest receivable on available-for-sale securities totaled approximately $191,000 and $210,000 at March 31, 2026 and December 31, 2025, respectively, and is included within accrued interest receivable on the balance sheet. This amount is excluded from the estimate of expected credit losses.

Loans

The allowance for credit losses (ACL) is a valuation allowance that is deducted from the loans’ amortized cost basis to present the net amount expected to be collected on the loans. Management’s determination of the adequacy of the ACL is based on the assessment of the expected credit losses on loans over the expected life of the loan. The ACL is increased by provision expense and decreased by charge-offs, net of recoveries of amounts previously charged off and expected to be charged off. The Company made the policy election to exclude accrued interest receivable on loans from the estimate of credit losses. Accrued interest receivable on loans totaled approximately $556,000 and $503,000 at March 31, 2026 and December 31, 2025, respectively, and is included within accrued interest receivable on the balance sheet. Management estimates the ACL balance using relevant available information from both internal and external sources, relating to past events, current conditions and reasonable and supportable forecasts. Historical credit loss experience of a defined peer group, by affiliate, paired with economic forecasts provide the basis for the quantitatively modeled estimates of expected credit losses. The Company adjusts its quantitative model, as necessary, to reflect conditions not already considered by the quantitative model. These adjustments are commonly known as the qualitative factors.

The ACL is measured on a collective (pool) basis when similar risk characteristics exist. The Company uses the average historical loss method to measure the quantitative portion of the ACL over four-quarter forecast and four-quarter reversion periods.

Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are not also included in the collective evaluation. When management determines that foreclosure is probable, expected credit losses are based on the fair value of the collateral at the reporting date, adjusted for estimated selling costs as appropriate.

Expected credit losses are estimated over the contractual term of the loans, adjusted for expected prepayments when appropriate. The contractual term excludes expected extensions, renewals and modifications unless either of the following applies: management has a reasonable expectation at the reporting date that a restructuring will be executed with an individual borrower experiencing financial difficulties, or the extension or renewal options are included in the original or modified contract at the reporting date and are not unconditionally cancellable by the Company.

Unfunded Commitments

The Company estimates expected credit losses over the contractual period in which the Company is exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Company. The ACL on unfunded commitments is adjusted through the provision for credit loss expense. The estimate includes consideration of the likelihood that funding will occur and an estimate of expected credit losses on commitments expected to be funded over its estimated life consistent with the related ACL methodology. The allowance for credit losses on unfunded commitments is included within accrued expenses and other liabilities on the consolidated balance sheets.

Income Taxes

The Company accounts for income taxes in accordance with income tax accounting guidance (ASC 740, Income Taxes). The income tax accounting guidance results in two components of income tax expense: current and deferred. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of the enacted tax law to the taxable income or excess of deductions over revenues. The Company determines deferred income taxes using the liability (or balance sheet) method. Under this method, the net deferred tax asset or liability is based on the tax effects of the differences between the book and tax basis of assets and liabilities, and enacted changes in tax rates and laws are recognized in the period in which they occur.

Deferred income tax expense results from changes in deferred tax assets and liabilities between periods. Deferred tax assets are reduced by a valuation allowance if, based on the weight of evidence available, it is more likely than not that some portion or all of a deferred tax asset will not be realized.

Tax positions are recognized if it is more likely than not, based on the technical merits, that the tax position will be realized or sustained upon examination. The term more likely than not means a likelihood of more than 50 percent; the terms examined and upon examination also include resolution of the related appeals or litigation processes, if any.

A tax position that meets the more-likely-than-not recognition threshold is initially and subsequently measured as the largest amount of tax benefit that has a greater than 50 percent likelihood of being realized upon settlement with a taxing authority that has full knowledge of all relevant information. The determination of whether or not a tax position has met the more-likely than-not recognition threshold considers the facts, circumstances and information available at the reporting date and is subject to management’s judgment.

Segment Information

The Company has one reportable operating segment, commercial banking. The Company’s chief operating decision maker (CODM) is the President of the Company, who monitors revenue streams of our products and services. The identifiable segment operations are managed and financial performance is evaluated on a Company-wide basis. The commercial banking segment provides an array of financial products and services including commercial, residential mortgage and consumer lending activities, along with commercial and consumer savings and banking services, to individual and business customers through its office locations in Illinois.

The accounting policies of the banking segment are described in management's discussion and analysis of financial condition and results of operations of the Company. The CODM assesses performance for the banking segment and decides how to allocate resources based on net income (reported on the consolidated statements of income). The measure of segment assets is reported on the consolidated balance sheets as total assets.

The CODM uses net income to evaluate income generated from segment assets (return on average assets) in deciding whether to reinvest profits into the commercial banking segment. Net income is also used by the CODM to monitor budget versus actual results. Net income as well as other common Company-wide financial performance and credit quality metrics, such as return on average assets, return on average equity, earnings per common share, net interest margin, operating efficiency and nonaccrual loans to total loans, among others, are used for competitive analysis by benchmarking to the Company’s competitors as well as used in assessing the performance of the segment and for establishing management’s compensation. Loans, investments and deposits provide revenue in the banking operation. Interest expense, provision for credit losses, salaries and employee benefits and data processing are the significant expense components in the banking operation.

Subsequent Events

Management has reviewed the Company's operations for potential disclosure or financial statement impacts related to events occurring after March 31, 2026, but prior to the release of the unaudited condensed consolidated financial statements contained in this quarterly report on Form 10-Q were issued.

There were no additional subsequent event disclosures or financial statement impacts related to events occurring after March 31, 2026, that warranted adjustment to or disclosure in these unaudited condensed consolidated financial statements.