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Recent Accounting Pronouncements
 3 Months Ended
Mar. 31, 2021
Accounting Policies [Abstract]  
Recent Accounting Pronouncements Recent Accounting Pronouncements
Loan Modifications and Troubled Debt Restructurings due to COVID-19
On April 7, 2020, the Board of Governors of the Federal Reserve System (the "FRB"), the Office of the Comptroller of the Currency (the “OCC”), and the Federal Deposit Insurance Corporation (the “FDIC” and, together with the FRB and OCC, the “federal banking regulators”) issued a revised Interagency Statement on Loan Modifications and Reporting for Financial Institutions, which, among other things, encouraged financial institutions to work prudently with borrowers who are or may be unable to meet their contractual payment obligations because of the effects of COVID-19, and stated that institutions generally do not need to categorize COVID-19-related modifications as troubled debt restructurings and that the agencies will not direct supervised institutions to automatically categorize all COVID-19 related loan modifications as troubled debt restructurings. Similarly, under the CARES Act, provisions were included that allow for loan modifications to not be classified as TDRs if certain criteria are met. This TDR exemption, which was set to expire on December 31, 2020, was extended under the CAA to the earlier of (i) 60 days after the national emergency concerning the COVID-19 outbreak terminates, and (ii) January 1, 2022.

Adopted Accounting Guidance in 2020
In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which replaces the incurred loss methodology with an expected loss methodology that is referred to as the current expected credit loss (CECL) methodology. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized cost, including loan receivables and held-to-maturity debt securities. It also applies to off-balance sheet credit exposures not accounted for as insurance (loan commitments, standby letters of credit, financial guarantees, and other similar instruments). The new CECL model requires an estimate of expected credit losses, measured over the contractual life of an instrument, which considers reasonable and supportable forecasts of future economic conditions in addition to information about past events and current conditions. The standard provides significant flexibility and requires a high degree of judgement with regards to pooling financial assets with similar risk characteristics and adjusting the relevant historical loss information in order to develop an estimate of expected lifetime losses.

The Company adopted ASC 326 on January 1, 2020 using the modified restrospective approach. Results for reporting periods after January 1, 2020 are presented under ASC 326 while prior period amounts continue to be reported in accordance with previously applicable GAAP. The Company recorded a net reduction of retained earnings of $6,717 upon adoption.

The Company adopted ASC 326 using the prospective transition approach for financial assets purchased with credit deterioration (PCD) that were previously classified as purchased credit impaired (PCI) and accounted for under ASC 310-30. In accordance with the standard, management did not reassess whether PCI assets met the criteria of PCD assets as of the date
of adoption. On January 1, 2020, the amortized cost basis of the PCD assets were adjusted to reflect the addition of $6,886 of the allowance for credit losses. The remaining noncredit discount (based on the adjusted amortized cost basis) will be accreted into interest income at the effective interest rate as of January 1, 2020.

The Company expanded the loan portfolio segments used to determine the allowance for credit losses for loans into eight loan segments as opposed to six loan segments under the incurred loss methodology. The following table illustrates the impact of the segment expansion as of January 1, 2020.
(dollars in thousands)December 31, 2019 Statement BalanceSegment Portfolio ReclassificationsDecember 31, 2019 After Reclassification
Loans:
Commercial and Industrial Loans$589,758 $(57,257)$532,501 
Commercial Real Estate Loans1,495,862 N/A1,495,862 
Agricultural Loans384,526 N/A384,526 
LeasesN/A57,257 57,257 
Home Equity Loans225,755 N/A225,755 
Consumer Loans81,217 (11,953)69,264 
Credit CardsN/A11,953 11,953 
Residential Mortgage Loans304,855 N/A304,855 
  Total Loans$3,081,973 $— $3,081,973 


The following table illustrates the impact of ASC 326:
(dollars in thousands)December 31, 2019 After ReclassificationImpact of ASC 326 AdoptionJanuary 1, 2020 Post-ASC 326 Adoption
Assets:
  Loans:
    Commercial and Industrial Loans$532,501 $2,191 $534,692 
    Commercial Real Estate Loans1,495,862 4,385 1,500,247 
    Agricultural Loans384,526 128 384,654 
    Leases57,257 — 57,257 
    Home Equity Loans225,755 35 225,790 
    Consumer Loans69,264 — 69,264 
    Credit Cards11,953 — 11,953 
    Residential Mortgage Loans304,855 147 305,002 
      Allowance for Credit Losses on Loans(16,278)(15,653)(31,931)
Liabilities:
Allowance for Credit Losses on Unfunded Loan Commitments$— $(173)$(173)

In December 2018, federal banking regulators approved a final rule to address changes to credit loss accounting under GAAP, including banking organizations’ implementation of CECL. The final rule provides banking organizations the option to phase in over a three-year period the day-one adverse effects on regulatory capital that may result from the adoption of the new accounting standard. On March 27, 2020, in an action related to the CARES Act, the federal banking regulators announced an interim final rule to delay the estimated impact on regulatory capital stemming from the implementation of CECL. The interim final rule, which was finalized effective September 30, 2020, maintains the three-year transition option in the previous rule and provides banks the option to delay for two years an estimate of CECL’s effect on regulatory capital, relative to the incurred loss methodology’s effect on regulatory capital, followed by a three-year transition period (five-year transition option). The Company has elected to adopt the five-year transition option. This election of the transition option is applicable only to
regulatory capital computations under federal banking regulations and does not otherwise impact the financial statements prepared in accordance with GAAP.
Loans
Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at amortized cost. Amortized cost is the principal balance outstanding, net of purchase premiums and discounts, deferred loan fees and costs. Accrued interest receivable totaled $13,141 at March 31, 2021 and was reported in Accrued Interest Receivable and Other Assets on the Consolidated Balance Sheets. Interest income is accrued on the unpaid principal balance. Loan origination fees and costs are deferred and recognized in interest income using the level-yield method without anticipating prepayments.

Purchase Credit Deteriorated (PCD) Loans
The Company has purchased loans, some of which have experienced more than insignificant credit deterioration since origination. PCD loans are recorded at the amount paid. An allowance for credit losses on loans is determined using the same methodology as other loans held for investment. The initial allowance for credit losses on loans determined on a collective basis is allocated to individual loans. The sum of the loan’s purchase price and allowance for credit losses on loans becomes its initial amortized cost basis. The difference between the initial amortized cost basis and the par value of the loan is a noncredit discount or premium, which is amortized into interest income over the life of the loan. Subsequent changes to the allowance for credit losses on loans are recorded through provision expense.

Allowance for Credit Losses - Loans
The allowance for credit losses is a valuation account that is deducted from the loans' amortized cost basis to present the net amount expected to be collected on the loans. Loans are charged off against the allowance when management believes the uncollectibility of a loan balance is confirmed. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged-off.

The Company estimates the allowance balance using relevant available information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. Historical loss experience provides the basis for the estimation of expected credit losses. Adjustments to historical loss information are made for changes in underwriting standards, portfolio mix, delinquency level, changes in environmental conditions, unemployment rates, risk classifications and collateral values.

The allowance for credit losses is measured on a collective (pooled) basis when similar risk characteristics exist. The Company has identified the following portfolio segments and measures the allowance for credit losses using the following methods:

Commercial and Industrial Loans - The principal risk of commercial and industrial loans is that these loans are primarily based on the identified cash flow of the borrower and secondarily on the collateral underlying the loans. Most commercial loans are secured by accounts receivable, inventory and equipment. If cash flow from business operations is reduced, the borrower's ability to repay the loan may diminish, and over time, it may also be difficult to substantiate current value of inventory and equipment. Repayment of these loans are more sensitive than other types of loans to adverse conditions in the general economy.

Commercial Real Estate Loans - Commercial real estate lending is generally dependent on the successful operation of the property securing the loan or the business conducted on the property securing the loan. Commercial real estate loans may be adversely affected by conditions in the real estate markets or in the general economy. Commercial real estate loans are collateralized by the borrower's underlying real estate. Therefore, diminished cash flows not only affects the ability to repay the loan, it may also reduce the underlying collateral value.

Agricultural Loans - This portfolio is diversified between real estate financing, equipment financing and lines of credit in various segments including grain production, poultry production and livestock production. Mitigating any concentration of risk that may exist in the Company's agricultural loan portfolio is the use of federal government guarantee programs.

Leases - Leases are primarily for equipment leased to varying types of businesses. If the cash flows from the business operations is reduced, the business's ability to repay the lease is diminished as well.
Home Equity Loans - Home equity loans are generally secured by 1-4 family residences that are owner-occupied. Repayment of these loans is primarily dependent on the personal income of the borrowers, which can be impacted by unemployment levels in the market area due to economic conditions.

Consumer Loans - Consumer loan repayment is typically dependent on the borrower remaining employed through the life of the loan as well as the borrower maintaining the underlying collateral adequately.

Credit Cards - Credit card loan are unsecured and repayment is primarily dependent on the personal income of the borrower.

Residential Mortgage Loans - Residential mortgage loans are typically secured by 1-4 family residences that are owner-occupied. Repayment of these loans is primarily dependent on the personal income of the borrowers, which can be impacted by unemployment levels in the market area due to economic conditions. Repayment may also be impacted by changes in residential property values.

Loans that do not share risk characteristics are evaluated on an individual basis. Loans evaluated individually are also not included in the collective evaluation. When the borrower is experiencing financial difficulty at the reporting date and repayment is expected to be provided substantially through the operation or sale of the collateral, expected credit losses are based on the fair value of the collateral at the reporting date adjusted for selling costs.

Troubled Debt Restructurings (“TDR”)
A loan for which the terms have been modified resulting in a concession, and for which the borrower is experiencing financial difficulties, is considered to be a TDR. The allowances for credit losses on loans on a TDR is measured using the same method as all other loans held for investment, except that the original interest rate is used to discount the expected cash flows, not the rate specified within the restructuring. See “Loan Modifications and Troubled Debt Restructurings due to COVID-19” at the beginning of this Note 2 for additional information.

Allowance for Credit Losses on Available-For-Sale Securities
For available-for-sale debt 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 debt securities available for sale that do not meet the aforementioned criteria, the Company evaluates whether the decline in fair value has resulted from credit losses or other factors. In making this assessment, management considers the extent to which fair value is less than amortized cost, any changes to the rating of the security by a rating agency, and adverse conditions specifically 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 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 basis. Any impairment that has not been recorded through an allowance for credit losses is recorded in other comprehensive income.

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

Allowance for Credit Losses on Off-Balance Sheet Credit Exposures
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 allowance for credit losses on off-balance sheet credit exposures is adjusted as a provision for credit loss expense included in other expense on the consolidated income statement. 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. Expected utilization rates are compared to the current funded portion of the total commitment amount as a practical expedient for funded exposure at default.
Accounting Guidance Issued But Not Yet AdoptedIn March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. These amendments provide temporary optional guidance to ease the potential burden in accounting for reference rate reform. The ASU provides optional expedients and exceptions for applying generally accepted accounting principles to contract modifications and hedging relationships, subject to meeting certain criteria, that reference LIBOR or another reference rate expected to be discontinued. It is intended to help stakeholders during the global market-wide reference rate transition period. The guidance is effective for all entities as of March 12, 2020 through December 31, 2022. The Company is evaluating the impact of adopting the new guidance on the consolidated financial statements on an ongoing basis with no material expected impact at this time.