Summary of Significant Accounting Policies	6 Months Ended
Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Nature of Business MidWestOne Financial Group, Inc., an Iowa corporation formed in 1983, is a bank holding company under the BHCA and a financial holding company under the GLBA. Our principal executive offices are located at 102 South Clinton Street, Iowa City, Iowa 52240. The Company owns all of the outstanding common stock of MidWestOne Bank, an Iowa state non-member bank chartered in 1934 with its main office in Iowa City, Iowa, and, until its dissolution in December 2019, all of the common stock of MidWestOne Insurance Services, Inc., Oskaloosa, Iowa. We operate primarily through MidWestOne Bank, our bank subsidiary. On May 1, 2019, the Company acquired ATBancorp, a bank holding company whose wholly-owned banking subsidiaries were ATSB and ABTW, community banks headquartered in Dubuque, Iowa, and Cuba City, Wisconsin, respectively. As consideration for the merger, we issued 4,117,536 shares of our common stock with a value of $116 million, and paid cash in the amount of $34.8 million. On June 30, 2019, the Company sold substantially all of the assets used by its wholly owned subsidiary, MidWestOne Insurance Services, Inc. to sell insurance products. The Company recognized a pre-tax gain of $1.1 million from the sale, which was reported in “Other” noninterest income on the Company’s consolidated statements of income. Basis of Presentation The accompanying interim condensed consolidated financial statements are prepared in accordance with GAAP for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, certain disclosures accompanying annual consolidated financial statements are omitted. In the opinion of management, all significant intercompany accounts and transactions have been eliminated and adjustments, consisting solely of normal recurring accruals and considered necessary for the fair presentation of financial statements for the interim periods, have been included. The current period's results of operations are not necessarily indicative of the results that ultimately may be achieved for the year. The interim condensed consolidated financial statements and notes thereto should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Form 10-K for the year ended December 31, 2019, filed with the SEC on March 6, 2020. Risks and Uncertainties The outbreak of COVID-19 has adversely impacted a broad range of industries in which the Company’s customers operate and could impair their ability to fulfill their financial obligations to the Company. The World Health Organization declared COVID-19 to be a global pandemic, indicating that almost all public commerce and related business activities must be, to varying degrees, curtailed with the goal of decreasing the rate of new infections. The spread of the outbreak has caused significant disruptions in the U.S. economy and has disrupted banking and other financial activity in the areas in which the Company operates. While there has been no material impact to the Company’s employees to date, COVID-19 could also potentially create widespread business continuity issues for the Company. Congress, the President, and the FRB have taken several actions designed to cushion the economic fallout. Most notably, the CARES Act was signed into law at the end of March 2020 as a $2 trillion legislative package. The goal of the CARES Act was to prevent a severe economic downturn through various measures, including direct financial aid to American families and economic stimulus to significantly impacted industry sectors. The package also includes extensive emergency funding for hospitals and healthcare providers. In addition to the general impact of COVID-19, certain provisions of the CARES Act as well as other recent legislative and regulatory relief efforts are expected to have a material impact on the Company’s operations. The Company’s business is dependent upon the willingness and ability of its employees and customers to conduct banking and other financial transactions. If the global response to contain COVID-19 escalates further or is unsuccessful, the Company could experience a material adverse effect on its business, financial condition, results of operations and cash flows. While it is not possible to know the full universe or extent that the impact of COVID-19, and resulting measures to curtail its spread, will have on the Company’s operations, the Company discloses in this report potentially material items of which it is aware at the time this report is filed with the SEC. Financial position and results of operations The Company’s interest income could be reduced due to COVID-19. In accordance with CARES Act provisions and regulatory guidance, the Company is actively working with COVID-19 affected borrowers to defer their payments, interest, and fees. While interest and fees will still accrue to income, through normal GAAP accounting, should eventual credit losses on these deferred payments emerge, interest income and fees accrued would need to be reversed. In such a scenario, interest income in future periods could be negatively impacted. At this time, the Company is unable to project the materiality of such an impact, but recognizes the breadth of the economic impact of COVID-19 may affect its borrowers’ ability to repay in future periods. The Company’s fee income could be reduced due to COVID-19. In keeping with guidance from regulators, the Company is actively working with COVID-19 affected customers to waive fees from a variety of sources, such as, but not limited to, insufficient funds and overdraft fees, ATM fees, account maintenance fees, etc. These reductions in fees are thought, at this time, to be temporary in conjunction with the length of the expected COVID-19 related economic crisis. At this time, the Company is unable to project the materiality of such an impact, but recognizes the breadth of the economic impact of COVID-19 is likely to impact its fee income in future periods. Capital and liquidity While the Company believes that it has sufficient capital to withstand an extended economic recession brought about by COVID-19, its reported and regulatory capital ratios could be adversely impacted by further credit losses. On July 28, 2020, the Company completed the private placement of $65.0 million of its subordinated notes with registration rights. The 5.75% fixed-to-floating rate subordinated notes are due July 2030. For regulatory capital purposes, the subordinated notes have been structured to qualify initially as Tier 2 Capital for the Company. The Company relies on cash on hand as well as dividends from its subsidiary bank to service its debt. If the Company’s capital deteriorates such that its subsidiary bank is unable to pay dividends to it for an extended period of time, the Company may not be able to service its debt. If an extended recession causes large numbers of the Company’s deposit customers to withdraw their funds, the Company might become more reliant on volatile or more expensive sources of funding. Asset valuation Currently, the Company does not expect COVID-19 to affect its ability to account timely for the assets on its balance sheet; however, this could change in future periods. While certain valuation assumptions and judgments will change to account for pandemic-related circumstances such as widening credit spreads, the Company does not anticipate significant changes in methodology used to determine the fair value of assets measured in accordance with GAAP. Due to the economic impact that COVID-19 has had on the Company, management concluded that factors, such as the decline in macroeconomic conditions and a sustained decrease in share price, have led to the occurrence of a triggering event and therefore an interim impairment test over goodwill was performed as of June 30, 2020. As part of this interim impairment assessment, in the event that the Company concluded that all or a portion of its goodwill is impaired, a non-cash charge for the amount of such impairment would be recorded to earnings. Such a charge would have no impact on tangible capital or regulatory capital. Based upon the results of our interim goodwill assessment, we have concluded that an impairment did not exist as of the time of the assessment. It is possible that the lingering effects of COVID-19 could cause the occurrence of what management would deem to be subsequent triggering events that could, under certain circumstances, cause us to perform a goodwill or intangible asset impairment test and result in an impairment charge being recorded for that period. In the event that the Company concludes that all or a portion of its goodwill or intangible assets are impaired, a non-cash charge for the amount of such impairment would be recorded to earnings. Such a charge would have no impact on tangible capital or regulatory capital. Processes, controls and business continuity plan The Company has invoked its Business Continuity Plan that includes a remote working strategy. The Company does not anticipate incurring additional material costs related to its continued deployment of the remote working strategy. No material operational or internal control challenges or risks have been identified to date. The Company does not anticipate significant challenges to its ability to maintain its systems and controls in light of the measures the Company has taken to prevent the spread of COVID-19. The Company does not currently face any material resource constraint through the implementation of its business continuity plans. Credit The Company is working with customers directly affected by COVID-19. The Company is prepared to offer short-term assistance in accordance with regulatory guidelines. As a result of the current economic environment caused by the COVID-19 virus, the Company is engaging in more frequent communication with borrowers to better understand their situation and the challenges faced, allowing it to respond proactively as needs and issues arise. Should economic conditions worsen, the Company could experience further increases in its required ACL and record additional credit loss expense. It is possible that the Company’s asset quality measures could worsen at future measurement periods if the effects of COVID-19 are prolonged. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect: (1) the reported amounts of assets and liabilities, (2) the disclosure of contingent assets and liabilities at the date of the financial statements, and (3) the reported amounts of revenues and expenses during the reporting period. These estimates are based on information available to management at the time the estimates are made. Actual results could differ from those estimates. The results for the six months ended June 30, 2020 may not be indicative of results for the year ending December 31, 2020, or for any other period. All significant accounting policies followed in the preparation of the quarterly financial statements are disclosed in the Annual Report on Form 10-K for the year ended December 31, 2019, filed with the SEC on March 6, 2020. Segment Reporting The Company’s activities are considered to be one reportable segment. The Company is engaged in the business of commercial and retail banking, and investment management with operations throughout Iowa, the Minneapolis/St. Paul metropolitan area of Minnesota, western Wisconsin, Naples and Fort Myers, Florida, and Denver, Colorado. Substantially all income is derived from a diverse base of commercial, mortgage and retail lending activities, and investments. Allowance for Credit Losses Debt Securities Available for Sale For available for sale debt securities in an unrealized loss position, the Company evaluates the securities to determine whether the decline in the fair value below the amortized cost basis (impairment) is due to credit-related factors or noncredit-related factors. Any impairment that is not credit related is recognized in other comprehensive income, net of applicable taxes. Credit-related impairment is recognized as an allowance for credit losses related to debt securities AFS on the balance sheet, limited to the amount by which the amortized cost basis exceeds the fair value, with a corresponding adjustment to earnings. Both the ACL and the adjustment to net income may be reversed if conditions change. However, if the Company intends to sell an impaired available for sale debt security or more likely than not will be required to sell such a security before recovering its amortized cost basis, the entire impairment amount must be recognized in earnings with a corresponding adjustment to the security’s amortized cost basis. Because the security’s amortized cost basis is adjusted to fair value, there is no ACL in this situation. In evaluating available for sale debt securities in unrealized loss positions for impairment and the criteria regarding its intent or requirement to sell such securities, the Company considers the extent to which fair value is less than amortized cost, whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, and the results of reviews of the issuers’ financial condition, among other factors. Changes in the allowance for credit losses are recorded as credit loss expense (or reversal of credit loss expense). Losses are charged against the ACL when management believes the uncollectability of an available for sale debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met. Accrued interest receivable is excluded from the estimate of credit losses. Loans Held for Investment Under the current expected credit loss model, the allowance for credit losses is a valuation account estimated at each balance sheet date and deducted from the amortized cost basis of loans held for investment to present the net amount expected to be collected. The Company estimates the ACL based on the underlying assets’ amortized cost basis, which is the amount at which the financing receivable is originated or acquired, adjusted for collection of cash and charge-offs, as well as applicable accretion or amortization of premium, discount, and net deferred fees or costs. In the event that collection of principal becomes uncertain, the Company has policies in place to reverse accrued interest in a timely manner. Therefore, the Company has made a policy election to exclude accrued interest from the measurement of ACL. Expected credit losses are reflected in the allowance for credit losses through a charge to credit loss expense. When the Company deems all or a portion of a financial asset to be uncollectible, the appropriate amount is written off and the ACL is reduced by the same amount. The Company applies judgment to determine when a financial asset is deemed uncollectible; however, generally speaking, an asset will be considered uncollectible no later than when all efforts at collection have been exhausted. Subsequent recoveries, if any, are credited to the ACL when received. The Company measures expected credit losses of financial assets on a collective (pool) basis when the financial assets share similar risk characteristics. Depending on the nature of the pool of financial assets with similar risk characteristics, the Company uses a DCF method or a loss-rate method to estimate expected credit losses. The Company’s methodologies for estimating the ACL consider available relevant information about the collectability of cash flows, including information about past events, current conditions, and reasonable and supportable forecasts. The methodologies apply historical loss information, adjusted for asset-specific characteristics, economic conditions at the measurement date, and forecasts about future economic conditions expected to exist through the contractual lives of the financial assets that are reasonable and supportable, to the identified pools of financial assets with similar risk characteristics for which the historical loss experience was observed. The Company’s methodologies revert back to historical loss driver information on a straight-line basis over four quarters when it can no longer develop reasonable and supportable forecasts. The Company adjusted the reversion period from the previously disclosed six quarters to four quarters based upon current forecasted conditions. Discounted Cash Flow Method The Company uses the DCF method to estimate expected credit losses for the agricultural, commercial and industrial, CRE - construction and development, CRE - farmland, CRE - multifamily, CRE - other, RRE - owner-occupied one-to-four family first liens, RRE - nonowner-occupied one-to-four family first liens, RRE - one-to-four family junior liens, and consumer loan pools. For each of these pools, the Company generates cash flow projections at the instrument level wherein payment expectations are adjusted for estimated prepayment speed, curtailments, time to recovery, probability of default, and loss given default. The modeling of expected prepayment speeds, curtailment rates, and time to recovery are based on historical internal data. The Company uses regression analysis of historical internal and peer data to determine which variables are best suited to be economic variables utilized when modeling lifetime probability of default and loss given default. This analysis also determines how expected probability of default and loss given default will react to forecasted levels of the economic variables. For the loan pools utilizing the DCF method, management utilizes one or multiple of the following economic variables: Midwest unemployment, national retail sales, CRE index, US rental vacancy rate, US gross domestic product, and national home price index (HPI). For all DCF models, management has determined that four quarters represents a reasonable and supportable forecast period and reverts back to a historical loss rate over four quarters on a straight-line basis. Management leverages economic projections from a reputable and independent third party to inform its loss driver forecasts over the four quarter forecast period. Other internal and external indicators of economic forecasts are also considered by management when developing the forecast metrics. The combination of adjustments for credit expectations (default and loss) and timing expectations (prepayment, curtailment, and time to recovery) produces an expected cash flow stream at the instrument level. Instrument effective yield is calculated, net of the impacts of prepayment assumptions, and the instrument expected cash flows are then discounted at that effective yield to produce an instrument-level net present value of expected cash flows (“NPV”). An ACL is established for the difference between the instrument’s NPV and amortized cost basis. In addition, management utilizes qualitative factors to adjust the calculated ACL as appropriate. Qualitative factors are based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions. Loss-Rate Method The Company uses a loss-rate method to estimate expected credit losses for the credit card and overdraft pools. For each of these pools, the Company applies an expected loss ratio based on internal and peer historical losses, adjusted as appropriate for qualitative factors. Qualitative loss factors are based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions. Collateral Dependent Financial Assets Loans that do not share risk characteristics are evaluated on an individual basis. For collateral dependent financial assets where the Company has determined that foreclosure of the collateral is probable, or where the borrower is experiencing financial difficulty and the Company expects repayment of the financial asset to be provided substantially through the operation or sale of the collateral, the ACL is measured based on the difference between the fair value of the collateral and the amortized cost basis of the asset as of the measurement date. When repayment is expected to be from the operation of the collateral, expected credit losses are calculated as the amount by which the amortized cost basis of the financial asset exceeds the present value of expected cash flows from the operation of the collateral. When repayment is expected to be from the sale of the collateral, expected credit losses are calculated as the amount by which the amortized costs basis of the financial asset exceeds the fair value of the underlying collateral less estimated cost to sell. The ACL may be zero if the fair value of the collateral at the measurement date exceeds the amortized cost basis of the financial asset. The Company’s estimate of the ACL reflects losses expected over the remaining contractual life of the assets. The contractual term does not consider extensions, renewals or modifications unless the Company has identified an expected TDR. A loan that has been modified or renewed is considered a TDR when two conditions are met: 1) the borrower is experiencing financial difficulty and 2) concessions are made for the borrower's benefit that would not otherwise be considered for a borrower or transaction with similar credit risk characteristics. The Company’s ACL reflects all effects of a TDR when an individual asset is specifically identified as a reasonably expected TDR. The Company has determined that a TDR is reasonably expected no later than the point when the lender concludes that modification is the best course of action and it is at least reasonably possible that the troubled borrower will accept some form of concession from the lender to avoid a default. Reasonably expected TDRs and executed non-performing TDRs are evaluated individually to determine the required ACL. TDRs performing in accordance with their modified contractual terms for a reasonable period of time may be included in the Company’s existing pools based on the underlying risk characteristics of the loan to measure the ACL. Guidance on Non-TDR Loan Modifications due to COVID-19 Section 4013 of the CARES Act, “Temporary Relief From Troubled Debt Restructurings,” allows financial institutions the option to temporarily suspend certain requirements under U.S. GAAP related to TDRs for a limited period of time during the COVID-19 pandemic. In March 2020, various regulatory agencies, including the FRB and the FDIC, issued an interagency statement, effective immediately, on loan modifications and reporting for financial institutions working with customers affected by COVID-19. The agencies confirmed with the staff of the FASB that short-term modifications made on a good faith basis in response to COVID-19 to borrowers who were current prior to any relief, are not to be considered TDRs. This includes short-term (e.g., six months) modifications, such as payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment that are insignificant. Borrowers considered current are those that are less than 30 days past due on their contractual payments at the time a modification program is implemented. Liability for Off-Balance Sheet Credit Losses Financial instruments include off-balance sheet credit losses, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for off-balance sheet loan commitments is represented by the contractual amount of those instruments. Such financial instruments are recorded when they are funded. The Company recognizes a liability for off-balance sheet credit losses, unless the commitments to extend credit are unconditionally cancellable, through a charge to credit loss expense for off-balance sheet credit losses included in credit loss expense in the Company’s consolidated statements of income. The liability for off-balance sheet credit losses is estimated by loan segment at each balance sheet date under the current expected credit loss model using the same methodologies as portfolio loans, taking into consideration the likelihood that funding will occur, and is included in other liabilities on the Company’s consolidated balance sheets.

MidWestOne Financial Group, Inc., an Iowa corporation formed in 1983, is a bank holding company under the BHCA and a financial holding company under the GLBA. Our principal executive offices are located at 102 South Clinton Street, Iowa City, Iowa 52240.

The Company owns all of the outstanding common stock of MidWestOne Bank, an Iowa state non-member bank chartered in 1934 with its main office in Iowa City, Iowa, and, until its dissolution in December 2019, all of the common stock of MidWestOne Insurance Services, Inc., Oskaloosa, Iowa. We operate primarily through MidWestOne Bank, our bank subsidiary.

On May 1, 2019, the Company acquired ATBancorp, a bank holding company whose wholly-owned banking subsidiaries were ATSB and ABTW, community banks headquartered in Dubuque, Iowa, and Cuba City, Wisconsin, respectively. As consideration for the merger, we issued 4,117,536 shares of our common stock with a value of $116 million, and paid cash in the amount of $34.8 million.

On June 30, 2019, the Company sold substantially all of the assets used by its wholly owned subsidiary, MidWestOne Insurance Services, Inc. to sell insurance products. The Company recognized a pre-tax gain of $1.1 million from the sale, which was reported in “Other” noninterest income on the Company’s consolidated statements of income.

The accompanying interim condensed consolidated financial statements are prepared in accordance with GAAP for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, certain disclosures accompanying annual consolidated financial statements are omitted. In the opinion of management, all significant intercompany accounts and transactions have been eliminated and adjustments, consisting solely of normal recurring accruals and considered necessary for the fair presentation of financial statements for the interim periods, have been included. The current period's results of operations are not necessarily indicative of the results that ultimately may be achieved for the year. The interim condensed consolidated financial statements and notes thereto should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Form 10-K for the year ended December 31, 2019, filed with the SEC on March 6, 2020.

The outbreak of COVID-19 has adversely impacted a broad range of industries in which the Company’s customers operate and could impair their ability to fulfill their financial obligations to the Company. The World Health Organization declared COVID-19 to be a global pandemic, indicating that almost all public commerce and related business activities must be, to varying degrees, curtailed with the goal of decreasing the rate of new infections. The spread of the outbreak has caused significant disruptions in the U.S. economy and has disrupted banking and other financial activity in the areas in which the Company operates. While there has been no material impact to the Company’s employees to date, COVID-19 could also potentially create widespread business continuity issues for the Company.

Congress, the President, and the FRB have taken several actions designed to cushion the economic fallout. Most notably, the CARES Act was signed into law at the end of March 2020 as a $2 trillion legislative package. The goal of the CARES Act was to prevent a severe economic downturn through various measures, including direct financial aid to American families and economic stimulus to significantly impacted industry sectors. The package also includes extensive emergency funding for hospitals and healthcare providers. In addition to the general impact of COVID-19, certain provisions of the CARES Act as well as other recent legislative and regulatory relief efforts are expected to have a material impact on the Company’s operations.

The Company’s business is dependent upon the willingness and ability of its employees and customers to conduct banking and other financial transactions. If the global response to contain COVID-19 escalates further or is unsuccessful, the Company could experience a material adverse effect on its business, financial condition, results of operations and cash flows. While it is not possible to know the full universe or extent that the impact of COVID-19, and resulting measures to curtail its spread, will have on the Company’s operations, the Company discloses in this report potentially material items of which it is aware at the time this report is filed with the SEC.

The Company’s interest income could be reduced due to COVID-19. In accordance with CARES Act provisions and regulatory guidance, the Company is actively working with COVID-19 affected borrowers to defer their payments, interest, and fees. While interest and fees will still accrue to income, through normal GAAP accounting, should eventual credit losses on these deferred payments emerge, interest income and fees accrued would need to be reversed. In such a scenario, interest income in future periods could be negatively impacted. At this time, the Company is unable to project the materiality of such an impact, but recognizes the breadth of the economic impact of COVID-19 may affect its borrowers’ ability to repay in future periods.

The Company’s fee income could be reduced due to COVID-19. In keeping with guidance from regulators, the Company is actively working with COVID-19 affected customers to waive fees from a variety of sources, such as, but not limited to, insufficient funds and overdraft fees, ATM fees, account maintenance fees, etc. These reductions in fees are thought, at this time, to be temporary in conjunction with the length of the expected COVID-19 related economic crisis. At this time, the Company is unable to project the materiality of such an impact, but recognizes the breadth of the economic impact of COVID-19 is likely to impact its fee income in future periods.

While the Company believes that it has sufficient capital to withstand an extended economic recession brought about by COVID-19, its reported and regulatory capital ratios could be adversely impacted by further credit losses. On July 28, 2020, the Company completed the private placement of $65.0 million of its subordinated notes with registration rights. The 5.75% fixed-to-floating rate subordinated notes are due July 2030. For regulatory capital purposes, the subordinated notes have been structured to qualify initially as Tier 2 Capital for the Company. The Company relies on cash on hand as well as dividends from its subsidiary bank to service its debt. If the Company’s capital deteriorates such that its subsidiary bank is unable to pay dividends to it for an extended period of time, the Company may not be able to service its debt. If an extended recession causes large numbers of the Company’s deposit customers to withdraw their funds, the Company might become more reliant on volatile or more expensive sources of funding.

Currently, the Company does not expect COVID-19 to affect its ability to account timely for the assets on its balance sheet; however, this could change in future periods. While certain valuation assumptions and judgments will change to account for pandemic-related circumstances such as widening credit spreads, the Company does not anticipate significant changes in methodology used to determine the fair value of assets measured in accordance with GAAP.

Due to the economic impact that COVID-19 has had on the Company, management concluded that factors, such as the decline in macroeconomic conditions and a sustained decrease in share price, have led to the occurrence of a triggering event and therefore an interim impairment test over goodwill was performed as of June 30, 2020. As part of this interim impairment assessment, in the event that the Company concluded that all or a portion of its goodwill is impaired, a non-cash charge for the amount of such impairment would be recorded to earnings. Such a charge would have no impact on tangible capital or regulatory capital. Based upon the results of our interim goodwill assessment, we have concluded that an impairment did not exist as of the time of the assessment.

It is possible that the lingering effects of COVID-19 could cause the occurrence of what management would deem to be subsequent triggering events that could, under certain circumstances, cause us to perform a goodwill or intangible asset impairment test and result in an impairment charge being recorded for that period. In the event that the Company concludes that all or a portion of its goodwill or intangible assets are impaired, a non-cash charge for the amount of such impairment would be recorded to earnings. Such a charge would have no impact on tangible capital or regulatory capital.

The Company has invoked its Business Continuity Plan that includes a remote working strategy. The Company does not anticipate incurring additional material costs related to its continued deployment of the remote working strategy. No material operational or internal control challenges or risks have been identified to date. The Company does not anticipate significant challenges to its ability to maintain its systems and controls in light of the measures the Company has taken to prevent the spread of COVID-19. The Company does not currently face any material resource constraint through the implementation of its business continuity plans.

The Company is working with customers directly affected by COVID-19. The Company is prepared to offer short-term assistance in accordance with regulatory guidelines. As a result of the current economic environment caused by the COVID-19 virus, the Company is engaging in more frequent communication with borrowers to better understand their situation and the

challenges faced, allowing it to respond proactively as needs and issues arise. Should economic conditions worsen, the Company could experience further increases in its required ACL and record additional credit loss expense. It is possible that the Company’s asset quality measures could worsen at future measurement periods if the effects of COVID-19 are prolonged.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect: (1) the reported amounts of assets and liabilities, (2) the disclosure of contingent assets and liabilities at the date of the financial statements, and (3) the reported amounts of revenues and expenses during the reporting period. These estimates are based on information available to management at the time the estimates are made. Actual results could differ from those estimates. The results for the six months ended June 30, 2020 may not be indicative of results for the year ending December 31, 2020, or for any other period.

The Company’s activities are considered to be one reportable segment. The Company is engaged in the business of commercial and retail banking, and investment management with operations throughout Iowa, the Minneapolis/St. Paul metropolitan area of Minnesota, western Wisconsin, Naples and Fort Myers, Florida, and Denver, Colorado. Substantially all income is derived from a diverse base of commercial, mortgage and retail lending activities, and investments.

For available for sale debt securities in an unrealized loss position, the Company evaluates the securities to determine whether the decline in the fair value below the amortized cost basis (impairment) is due to credit-related factors or noncredit-related factors. Any impairment that is not credit related is recognized in other comprehensive income, net of applicable taxes. Credit-related impairment is recognized as an allowance for credit losses related to debt securities AFS on the balance sheet, limited to the amount by which the amortized cost basis exceeds the fair value, with a corresponding adjustment to earnings. Both the ACL and the adjustment to net income may be reversed if conditions change. However, if the Company intends to sell an impaired available for sale debt security or more likely than not will be required to sell such a security before recovering its amortized cost basis, the entire impairment amount must be recognized in earnings with a corresponding adjustment to the security’s amortized cost basis. Because the security’s amortized cost basis is adjusted to fair value, there is no ACL in this situation.

In evaluating available for sale debt securities in unrealized loss positions for impairment and the criteria regarding its intent or requirement to sell such securities, the Company considers the extent to which fair value is less than amortized cost, whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, and the results of reviews of the issuers’ financial condition, among other factors.

Changes in the allowance for credit losses are recorded as credit loss expense (or reversal of credit loss expense). Losses are charged against the ACL when management believes the uncollectability of an available for sale debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met.

Under the current expected credit loss model, the allowance for credit losses is a valuation account estimated at each balance sheet date and deducted from the amortized cost basis of loans held for investment to present the net amount expected to be collected.

The Company estimates the ACL based on the underlying assets’ amortized cost basis, which is the amount at which the financing receivable is originated or acquired, adjusted for collection of cash and charge-offs, as well as applicable accretion or amortization of premium, discount, and net deferred fees or costs. In the event that collection of principal becomes uncertain, the Company has policies in place to reverse accrued interest in a timely manner. Therefore, the Company has made a policy election to exclude accrued interest from the measurement of ACL.

Expected credit losses are reflected in the allowance for credit losses through a charge to credit loss expense. When the Company deems all or a portion of a financial asset to be uncollectible, the appropriate amount is written off and the ACL is reduced by the same amount. The Company applies judgment to determine when a financial asset is deemed uncollectible;

The Company measures expected credit losses of financial assets on a collective (pool) basis when the financial assets share similar risk characteristics. Depending on the nature of the pool of financial assets with similar risk characteristics, the Company uses a DCF method or a loss-rate method to estimate expected credit losses.

The Company’s methodologies for estimating the ACL consider available relevant information about the collectability of cash flows, including information about past events, current conditions, and reasonable and supportable forecasts. The methodologies apply historical loss information, adjusted for asset-specific characteristics, economic conditions at the measurement date, and forecasts about future economic conditions expected to exist through the contractual lives of the financial assets that are reasonable and supportable, to the identified pools of financial assets with similar risk characteristics for which the historical loss experience was observed. The Company’s methodologies revert back to historical loss driver information on a straight-line basis over four quarters when it can no longer develop reasonable and supportable forecasts. The Company adjusted the reversion period from the previously disclosed six quarters to four quarters based upon current forecasted conditions.

The Company uses the DCF method to estimate expected credit losses for the agricultural, commercial and industrial, CRE - construction and development, CRE - farmland, CRE - multifamily, CRE - other, RRE - owner-occupied one-to-four family first liens, RRE - nonowner-occupied one-to-four family first liens, RRE - one-to-four family junior liens, and consumer loan pools. For each of these pools, the Company generates cash flow projections at the instrument level wherein payment expectations are adjusted for estimated prepayment speed, curtailments, time to recovery, probability of default, and loss given default. The modeling of expected prepayment speeds, curtailment rates, and time to recovery are based on historical internal data.

The Company uses regression analysis of historical internal and peer data to determine which variables are best suited to be economic variables utilized when modeling lifetime probability of default and loss given default. This analysis also determines how expected probability of default and loss given default will react to forecasted levels of the economic variables. For the loan pools utilizing the DCF method, management utilizes one or multiple of the following economic variables: Midwest unemployment, national retail sales, CRE index, US rental vacancy rate, US gross domestic product, and national home price index (HPI).

For all DCF models, management has determined that four quarters represents a reasonable and supportable forecast period and reverts back to a historical loss rate over four quarters on a straight-line basis. Management leverages economic projections from a reputable and independent third party to inform its loss driver forecasts over the four quarter forecast period. Other internal and external indicators of economic forecasts are also considered by management when developing the forecast metrics.

The combination of adjustments for credit expectations (default and loss) and timing expectations (prepayment, curtailment, and time to recovery) produces an expected cash flow stream at the instrument level. Instrument effective yield is calculated, net of the impacts of prepayment assumptions, and the instrument expected cash flows are then discounted at that effective yield to produce an instrument-level net present value of expected cash flows (“NPV”). An ACL is established for the difference between the instrument’s NPV and amortized cost basis. In addition, management utilizes qualitative factors to adjust the calculated ACL as appropriate. Qualitative factors are based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions.

The Company uses a loss-rate method to estimate expected credit losses for the credit card and overdraft pools. For each of these pools, the Company applies an expected loss ratio based on internal and peer historical losses, adjusted as appropriate for qualitative factors. Qualitative loss factors are based on management's judgment of company, market, industry or business specific data, changes in underlying loan composition of specific portfolios, trends relating to credit quality, delinquency, non-performing and adversely rated loans, and reasonable and supportable forecasts of economic conditions.

Loans that do not share risk characteristics are evaluated on an individual basis. For collateral dependent financial assets where the Company has determined that foreclosure of the collateral is probable, or where the borrower is experiencing financial

difficulty and the Company expects repayment of the financial asset to be provided substantially through the operation or sale of the collateral, the ACL is measured based on the difference between the fair value of the collateral and the amortized cost basis of the asset as of the measurement date. When repayment is expected to be from the operation of the collateral, expected credit losses are calculated as the amount by which the amortized cost basis of the financial asset exceeds the present value of expected cash flows from the operation of the collateral. When repayment is expected to be from the sale of the collateral, expected credit losses are calculated as the amount by which the amortized costs basis of the financial asset exceeds the fair value of the underlying collateral less estimated cost to sell. The ACL may be zero if the fair value of the collateral at the measurement date exceeds the amortized cost basis of the financial asset.

The Company’s estimate of the ACL reflects losses expected over the remaining contractual life of the assets. The contractual term does not consider extensions, renewals or modifications unless the Company has identified an expected TDR.

A loan that has been modified or renewed is considered a TDR when two conditions are met: 1) the borrower is experiencing financial difficulty and 2) concessions are made for the borrower's benefit that would not otherwise be considered for a borrower or transaction with similar credit risk characteristics. The Company’s ACL reflects all effects of a TDR when an individual asset is specifically identified as a reasonably expected TDR. The Company has determined that a TDR is reasonably expected no later than the point when the lender concludes that modification is the best course of action and it is at least reasonably possible that the troubled borrower will accept some form of concession from the lender to avoid a default. Reasonably expected TDRs and executed non-performing TDRs are evaluated individually to determine the required ACL. TDRs performing in accordance with their modified contractual terms for a reasonable period of time may be included in the Company’s existing pools based on the underlying risk characteristics of the loan to measure the ACL.

Section 4013 of the CARES Act, “Temporary Relief From Troubled Debt Restructurings,” allows financial institutions the option to temporarily suspend certain requirements under U.S. GAAP related to TDRs for a limited period of time during the COVID-19 pandemic. In March 2020, various regulatory agencies, including the FRB and the FDIC, issued an interagency statement, effective immediately, on loan modifications and reporting for financial institutions working with customers affected by COVID-19. The agencies confirmed with the staff of the FASB that short-term modifications made on a good faith basis in response to COVID-19 to borrowers who were current prior to any relief, are not to be considered TDRs. This includes short-term (e.g., six months) modifications, such as payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment that are insignificant. Borrowers considered current are those that are less than 30 days past due on their contractual payments at the time a modification program is implemented.

Financial instruments include off-balance sheet credit losses, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for off-balance sheet loan commitments is represented by the contractual amount of those instruments. Such financial instruments are recorded when they are funded.