Critical Accounting Policies	3 Months Ended
Mar. 31, 2023
Accounting Policies [Abstract]
Critical Accounting Policies	The Company has adopted various accounting policies, which govern the application of accounting principles generally accepted in the United States in the preparation of our financial statements. Our significant accounting policies are described in the footnotes to the audited consolidated financial statements at December 31, 2022 included in our 2022 Annual Report to Shareholders. Certain accounting policies involve significant judgments and assumptions by management, which have a material impact on the carrying value of certain assets and liabilities, and, as such, have a greater possibility of producing results that could be materially different than originally reported. We consider these accounting policies to be critical accounting policies. The judgments and assumptions we use are based on historical experience and other factors, which we believe to be reasonable under the circumstances. Because of the nature of the judgments and assumptions we make, actual results could differ from these judgments and estimates which could have a material impact on our carrying values of assets and liabilities and our results of operations. There have been no significant changes to the application of significant accounting policies since December 31, 2022, except for the following: Accounting Standards Adopted in 2023 On January 1, 2023, the Company adopted Accounting Standards Update (“ASU”) 2016-13 Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments Accounting Standards Codification (“ASC”) 326. This standard replaced the incurred loss methodology with an expected loss methodology that is referred to as the current expected credit loss (“CECL”) methodology. CECL requires an estimate of credit losses for the remaining estimated life of the financial asset using historical experience, current conditions, and reasonable and supportable forecasts and generally applies to financial assets measured at amortized cost, including loan receivables and held-to-maturity debt securities, and some off-balance sheet credit exposures such as unfunded commitments to extend credit. Financial assets measured at amortized cost will be presented at the net amount expected to be collected by using an allowance for credit losses. In addition, CECL made changes to the accounting for available for sale debt securities. One such change is to require credit losses to be presented as an allowance rather than as a write-down on available for sale debt securities if management does not intend to sell and does not believe that it is more likely than not, they will be required to sell. The Company adopted ASC 326 and all related subsequent amendments thereto effective January 1, 2023 using the modified retrospective approach for all financial assets measured at amortized cost and off-balance sheet credit exposures. The transition adjustment of the adoption of CECL included an increase in the allowance for credit losses on loans of $784,000, which is presented as a reduction to net loans outstanding, and an increase in the allowance for credit losses on unfunded loan commitments of $1.2 million, which is recorded within "Other Liabilities." The adoption of CECL had an insignificant impact on the Company's held to maturity and available for sale securities portfolios. The Company recorded a net decrease to retained earnings of $1.6 million as of January 1, 2023 for the cumulative effect of adopting CECL, which reflects the transition adjustments noted above, net of the applicable deferred tax assets recorded. Results for reporting periods beginning after January 1, 2023 are presented under CECL while prior period amounts continue to be reported in accordance with previously applicable accounting standards (“Incurred Loss”). The Company adopted ASC 326 using the prospective transition approach for debt securities for which other-than-temporary impairment had been recognized prior to January 1, 2023. As of December 31, 2022, the Company did not have any other-than-temporarily impaired investment securities. Therefore, upon adoption of ASC 326, the Company determined that an allowance for credit losses on available for sale securities was not deemed material. The Company elected not to measure an allowance for credit losses for accrued interest receivable and instead elected to reverse interest income on loans or securities that are placed on nonaccrual status, which is generally when the instrument is 90 days past due, or earlier if the Company believes the collection of interest is doubtful. The Company has concluded that this policy results in the timely reversal of uncollectible interest. Allowance for Credit Losses – Held to Maturity Securities Management measures expected credit losses on held to maturity debt securities on a collective basis by major security type. Accrued interest receivable on held to maturity debt securities totaled $941,000 at March 31, 2023 and was excluded from the estimate of credit losses. The estimate of expected credit losses is primarily based on the ratings assigned to the securities by debt rating agencies and the average of the annual historical loss rates associated with those ratings. The Company then multiplies those loss rates, as adjusted for any modifications to reflect current conditions and reasonable and supportable forecasts as considered necessary, by the remaining lives of each individual security to arrive at a lifetime expected loss amount. Additionally, private label collateralized mortgage obligation ("CMO") securities which are not explicitly or implicitly guaranteed by the U.S. government are evaluated utilizing underlying pool data such as historical loss rates, loan-to-value ratios and credit enhancement data. See "Note 7 - Investments Held to Maturity" with regards to the held to maturity portfolio major security types. All mortgage-backed securities issued by government-sponsored corporations are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. The state and local governments securities held by the Company are highly rated by major rating agencies. As a result, no allowance for credit losses was recorded on held to maturity securities at March 31, 2023. Allowance for Credit Losses – Available for Sale Securities For available for sale securities, management evaluates all investments in an unrealized loss position on a quarterly basis, and more frequently when economic or market conditions warrant such evaluation. If the Company has the intent to sell the security or it is more likely than not that the Company will be required to sell the security, the security is written down to fair value and the entire loss is recorded in earnings. If either of the above criteria is not met, the Company evaluates whether the decline in fair value is the result of credit losses or other factors. In making the assessment, the Company may consider various factors including the extent to which fair value is less than amortized cost, performance on any underlying collateral, downgrades in the ratings of the security by a rating agency, the failure of the issuer to make scheduled interest or principal payments and adverse conditions specifically related to the security. If the assessment indicates that a credit loss exists, the present value of cash flows expected to be collected are compared to the amortized cost basis of the security and any excess is recorded as an allowance for credit loss, limited by the amount that the fair value is less than the amortized cost basis. Any amount of unrealized loss that has not been recorded through an allowance for credit loss is recognized in other comprehensive income. Changes in the allowance for credit loss are recorded as provision for (or reversal of) credit loss expense. Losses are charged against the allowance for credit loss when management believes an available for sale security is confirmed to be uncollectible or when either of the criteria regarding intent or requirement to sell is met. At March 31, 2023, there was no allowance for credit loss related to the available for sale portfolio. Accrued interest receivable on available for sale debt securities totaled $2.9 million at March 31, 2023 and was excluded from the estimate of credit losses. 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 and deferred fees and costs. Accrued interest receivable related to loans is reported in accrued interest receivable on the consolidated balance sheets. Interest income is accrued on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, are deferred and recognized in interest income using methods that approximate a level yield without anticipating prepayments. The accrual of interest is generally discontinued when a loan becomes 90 days past due and is not well collateralized and in the process of collection, or when management believes, after considering economic and business conditions and collection efforts, that the principal or interest will not be collectible in the normal course of business. Past due status is based on contractual terms of the loan. A loan is considered to be past due when a scheduled payment has not been received 30 days after the contractual due date. All accrued interest is reversed against interest income when a loan is placed on nonaccrual status. Interest received on such loans is accounted for using the cost-recovery method, until qualifying for return to accrual. Under the cost-recovery method, interest income is not recognized until the loan balance is reduced to zero. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current, there is a sustained period of repayment performance, and future payments are reasonably assured. 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. Accrued interest receivable is excluded from the estimate of credit losses. The allowance for credit losses represents management’s estimate of lifetime credit losses inherent in loans as of the balance sheet date. The allowance for credit losses is estimated by management using relevant available information, from both internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. The Company measures expected credit losses for loans on a pooled basis when similar risk characteristics exist. The Company has identified the following portfolio segments: Real Estate •Construction - Construction loans consist of loans to construct a borrower’s primary or secondary residence or vacant land upon which the owner intends to construct a dwelling at a future date. These loans are typically secured by undeveloped or partially developed land in anticipation of completing construction of a 1-4 family residential property. There is risk these construction and development projects can experience delays and cost overruns exceeding the borrower’s financial ability to complete the project. Such cost overruns can result in foreclosure of partially completed and unmarketable collateral. In addition, construction loans consist of loans to finance land for development of commercial or residential real property and construction of multifamily apartments or other commercial properties. These loans are highly dependent on the supply and demand for commercial real estate as well as the demand for newly constructed residential homes and lots acquired for development. Deterioration in demand could result in decreased collateral values, which could make repayments of outstanding loans difficult for customers. •Residential Mortgage - Residential mortgages consist of loans to purchase or refinance the borrower’s primary dwelling, second residence or vacation home and are often secured by 1-4 family residential property. Significant and rapid declines in real estate values can result in borrowers having debt levels in excess of the current market value of the collateral •Commercial - Owner occupied commercial mortgages consist of loans to purchase or re-finance owner occupied nonresidential properties. This includes office buildings, other commercial facilities, and farmland. Commercial mortgages secured by owner occupied properties are primarily dependent on the ability of borrowers to achieve business results consistent with those projected at loan origination. While these loans and leases are collateralized by real property in an effort to mitigate risk, it is possible the liquidation of collateral will not fully satisfy the obligation. Non-owner occupied commercial mortgages consist of loans to purchase or refinance investment nonresidential properties. This includes office buildings and other facilities rented or leased to unrelated parties, as well as farmland and multifamily properties. The primary risk associated with income producing commercial mortgage loans is the ability of the income-producing property that collateralizes the loan to produce adequate cash flow to service the debt. While these loans and leases are collateralized by real property in an effort to mitigate risk, it is possible the liquidation of collateral will not fully satisfy the obligation. Commercial and Agricultural - Commercial business loans consist of loans or lines of credit to finance accounts receivable, inventory or other general business needs, business credit cards, and lease financing agreements for equipment, vehicles, or other assets. The primary risk associated with commercial and industrial and lease financing loans is the ability of borrowers to achieve business results consistent with those projected at origination. Failure to achieve these projections presents risk the borrower will be unable to service the debt consistent with the contractual terms of the loan or lease. Consumer loans •Home equity - Home equity loans consist of home equity lines of credit and other lines of credit secured by first or second liens on the borrower’s primary residence. These loans are secured by both senior and junior liens on the residential real estate and are particularly susceptible to declining collateral values. This risk is elevated for loans secured by junior lines as a substantial decline in value could render the junior lien position effectively unsecured. •Other - Consumer loans consist of loans to finance unsecured home improvements, student loans, automobiles and revolving lines of credit that can be secured or unsecured. The value of the underlying collateral within this class is at risk of potential rapid depreciation which could result in unpaid balances in excess of the collateral. The Company calculates the allowance for credit losses for each pool using a remaining life loss methodology with a two quarter reasonable and supportable forecast period and an immediate reversion period. Management believes that the Company’s historical loss experience provides the best basis for its assessment of expected credit losses to determine the allowance for credit losses. The Company uses its own internal data to measure historical credit loss experience within the pools with similar risk characteristics over an economic cycle. The Company then forecasts the calculated historical loss rates over the calculated remaining life of loans by pool. Additionally, the allowance for credit losses calculation includes subjective adjustments for qualitative risk factors that are likely to cause estimated credit losses to differ from historical experience. These qualitative adjustments may increase or reduce reserve levels and include adjustments for lending management experience and risk tolerance, loan review and audit results, asset quality and portfolio trends, loan portfolio growth, industry concentrations, trends in underlying collateral, external factors and economic conditions not already captured. Loans that do not share risk characteristics are evaluated on an individual basis. When management determines that foreclosure is probable and the borrower is experiencing financial difficulty, the expected credit losses are based on the fair value of collateral at the reporting dated adjusted for selling costs as appropriate. Allowance for Credit Losses – Unfunded Commitments Financial instruments include off-balance sheet credit instruments, 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 records an allowance for credit losses on off-balance sheet credit exposures, unless the commitments to extend credit are unconditionally cancellable, through a charge to provision for unfunded commitments in the Company’s income statements. The allowance for credit losses on off-balance sheet credit exposures 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 as well as any third-party guarantees. The allowance for unfunded commitments is included in other liabilities on the Company’s consolidated balance sheets. In January 2023, the Company adopted ASU 2022-02, “Financial Instruments – Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures” (“ASU 2022-02”), which eliminated the accounting guidance for troubled debt restructurings (“TDRs”) while enhancing disclosure requirements for certain loan refinancing and restructurings by creditors when a borrower is experiencing financial difficulty. In addition, for public business entities, the guidance requires disclosure of current-period gross write-offs by year of origination for financing receivables and net investments in leases within the scope of Subtopic 326-20. The Company adopted the guidance using the modified retrospective method. Upon adoption of this guidance, the Company no longer establishes a specific reserve for modifications to borrowers experiencing financial difficulty. Instead, these modifications are included in their respective cohort and a historical loss rate is applied to the current loan balance to arrive at the quantitative baseline portion of the allowance. The difference between the allowance previously determined and the current allowance was not material to the Company’s financial statements. Recent Accounting Pronouncements The following is a summary of recent authoritative pronouncements that could affect accounting, reporting, and disclosure of financial information by the Company: In December 2022, the Financial Accounting Standards Board (“FASB”) issued amendments to extend the period of time preparers can use the reference rate reform relief guidance under ASC Topic 848 from December 31, 2022, to December 31, 2024, to address the fact that all London Interbank Offered Rate ("LIBOR") tenors were not discontinued as of December 31, 2021, and some tenors will be published until June 2023. The amendments are effective immediately for all entities and are applied prospectively. The Company does not expect these amendments to have a material effect on its financial statements. Other accounting standards that have been issued or proposed by the FASB or other standards-setting authorities are not expected to have a material impact on the Company’s consolidated financial position, results of operations or cash flows.

The Company has adopted various accounting policies, which govern the application of accounting principles generally accepted in the United States in the preparation of our financial statements. Our significant accounting policies are described in the footnotes to the audited consolidated financial statements at December 31, 2022 included in our 2022 Annual Report to Shareholders. Certain accounting policies involve significant judgments and assumptions by management, which have a material impact on the carrying value of certain assets and liabilities, and, as such, have a greater possibility of producing results that could be materially different than originally reported. We consider these accounting policies to be critical accounting policies. The judgments and assumptions we use are based on historical experience and other factors, which we believe to be reasonable under the circumstances. Because of the nature of the judgments and assumptions we make, actual results could differ from these judgments and estimates which could have a material impact on our carrying values of assets and liabilities and our results of operations. There have been no significant changes to the application of significant accounting policies since December 31, 2022, except for the following:

On January 1, 2023, the Company adopted Accounting Standards Update (“ASU”) 2016-13 Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments Accounting Standards Codification (“ASC”) 326. This standard replaced the incurred loss methodology with an expected loss methodology that is referred to as the current expected credit loss (“CECL”) methodology. CECL requires an estimate of credit losses for the remaining estimated life of the financial asset using historical experience, current conditions, and reasonable and supportable forecasts and generally applies to financial assets measured at amortized cost, including loan receivables and held-to-maturity debt securities, and some off-balance sheet credit exposures such as unfunded commitments to extend credit. Financial assets measured at amortized cost will be presented at the net amount expected to be collected by using an allowance for credit losses.

In addition, CECL made changes to the accounting for available for sale debt securities. One such change is to require credit losses to be presented as an allowance rather than as a write-down on available for sale debt securities if management does not intend to sell and does not believe that it is more likely than not, they will be required to sell.

The Company adopted ASC 326 and all related subsequent amendments thereto effective January 1, 2023 using the modified retrospective approach for all financial assets measured at amortized cost and off-balance sheet credit exposures. The transition adjustment of the adoption of CECL included an increase in the allowance for credit losses on loans of $784,000, which is presented as a reduction to net loans outstanding, and an increase in the allowance for credit losses on unfunded loan commitments of $1.2 million, which is recorded within "Other Liabilities." The adoption of CECL had an insignificant impact on the Company's held to maturity and available for sale securities portfolios. The Company recorded a net decrease to retained earnings of $1.6 million as of January 1, 2023 for the cumulative effect of adopting CECL, which reflects the transition adjustments noted above, net of the applicable deferred tax assets recorded. Results for reporting periods beginning after January 1, 2023 are presented under CECL while prior period amounts continue to be reported in accordance with previously applicable accounting standards (“Incurred Loss”).

The Company adopted ASC 326 using the prospective transition approach for debt securities for which other-than-temporary impairment had been recognized prior to January 1, 2023. As of December 31, 2022, the Company did not have any other-than-temporarily impaired investment securities. Therefore, upon adoption of ASC 326, the Company determined that an allowance for credit losses on available for sale securities was not deemed material.

The Company elected not to measure an allowance for credit losses for accrued interest receivable and instead elected to reverse interest income on loans or securities that are placed on nonaccrual status, which is generally when the instrument is 90 days past due, or earlier if the Company believes the collection of interest is doubtful. The Company has concluded that this policy results in the timely reversal of uncollectible interest.

Management measures expected credit losses on held to maturity debt securities on a collective basis by major security type. Accrued interest receivable on held to maturity debt securities totaled $941,000 at March 31, 2023 and was excluded from the estimate of credit losses.

The estimate of expected credit losses is primarily based on the ratings assigned to the securities by debt rating agencies and the average of the annual historical loss rates associated with those ratings. The Company then multiplies those loss rates, as adjusted for any modifications to reflect current conditions and reasonable and supportable forecasts as considered necessary, by the remaining lives of each individual security to arrive at a lifetime expected loss amount. Additionally, private label collateralized mortgage obligation ("CMO") securities which are not explicitly or implicitly guaranteed by the U.S. government are evaluated utilizing underlying pool data such as historical loss rates, loan-to-value ratios and credit enhancement data. See "Note 7 - Investments Held to Maturity" with regards to the held to maturity portfolio major security types.

All mortgage-backed securities issued by government-sponsored corporations are either explicitly or implicitly guaranteed by the U.S. government, are highly rated by major rating agencies and have a long history of no credit losses. The state and local governments securities held by the Company are highly rated by major rating agencies.

For available for sale securities, management evaluates all investments in an unrealized loss position on a quarterly basis, and more frequently when economic or market conditions warrant such evaluation. If the Company has the intent to sell the security or it is more likely than not that the Company will be required to sell the security, the security is written down to fair value and the entire loss is recorded in earnings.

If either of the above criteria is not met, the Company evaluates whether the decline in fair value is the result of credit losses or other factors. In making the assessment, the Company may consider various factors including the extent to which fair value is less than amortized cost, performance on any underlying collateral, downgrades in the ratings of the security by a rating agency, the failure of the issuer to make scheduled interest or principal payments and adverse conditions specifically related to the security. If the assessment indicates that a credit loss exists, the present value of cash flows expected to be collected are compared to the amortized cost basis of the security and any excess is recorded as an allowance for credit loss, limited by the amount that the fair value is less than the amortized cost basis. Any amount of unrealized loss that has not been recorded through an allowance for credit loss is recognized in other comprehensive income.

Changes in the allowance for credit loss are recorded as provision for (or reversal of) credit loss expense. Losses are charged against the allowance for credit loss when management believes an available for sale security is confirmed to be uncollectible or when either of the criteria regarding intent or requirement to sell is met. At March 31, 2023, there was no allowance for credit loss related to the available for sale portfolio.

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 and deferred fees and costs. Accrued interest receivable related to loans is reported in accrued interest receivable on the consolidated balance sheets. Interest income is accrued on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, are deferred and recognized in interest income using methods that approximate a level yield without anticipating prepayments.

The accrual of interest is generally discontinued when a loan becomes 90 days past due and is not well collateralized and in the process of collection, or when management believes, after considering economic and business conditions and collection efforts, that the principal or interest will not be collectible in the normal course of business. Past due status is based on contractual terms of the loan. A loan is considered to be past due when a scheduled payment has not been received 30 days after the contractual due date.

All accrued interest is reversed against interest income when a loan is placed on nonaccrual status. Interest received on such loans is accounted for using the cost-recovery method, until qualifying for return to accrual. Under the cost-recovery method, interest income is not recognized until the loan balance is reduced to zero. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current, there is a sustained period of repayment performance, and future payments are reasonably assured.

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. Accrued interest receivable is excluded from the estimate of credit losses.

The allowance for credit losses represents management’s estimate of lifetime credit losses inherent in loans as of the balance sheet date. The allowance for credit losses is estimated by management using relevant available information, from both internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts.

•Construction - Construction loans consist of loans to construct a borrower’s primary or secondary residence or vacant land upon which the owner intends to construct a dwelling at a future date. These loans are typically secured by undeveloped or partially developed land in anticipation of completing construction of a 1-4 family residential property. There is risk these construction and development projects can experience delays and cost overruns exceeding the borrower’s financial ability to complete the project. Such cost overruns can result in foreclosure of partially completed and unmarketable collateral. In addition, construction loans consist of loans to finance land for development of commercial or residential real property and construction of multifamily apartments or other commercial properties. These loans are highly dependent on the supply and demand for commercial real estate as well as the demand for newly constructed residential homes and lots acquired for development. Deterioration in demand could result in decreased collateral values, which could make repayments of outstanding loans difficult for customers.

•Residential Mortgage - Residential mortgages consist of loans to purchase or refinance the borrower’s primary dwelling, second residence or vacation home and are often secured by 1-4 family residential property. Significant and rapid declines in real estate values can result in borrowers having debt levels in excess of the current market value of the collateral

•Commercial - Owner occupied commercial mortgages consist of loans to purchase or re-finance owner occupied nonresidential properties. This includes office buildings, other commercial facilities, and farmland. Commercial mortgages secured by owner occupied properties are primarily dependent on the ability of borrowers to achieve business results consistent with those projected at loan origination. While these loans and leases are collateralized by real property in an effort to mitigate risk, it is possible the liquidation of collateral will not fully satisfy the obligation. Non-owner occupied commercial mortgages consist of loans to purchase or refinance investment nonresidential properties. This includes office buildings and other facilities rented or leased to unrelated parties, as well as farmland and multifamily properties. The primary risk associated with income producing commercial mortgage loans is the ability of the income-producing property that collateralizes the loan to produce adequate cash flow to service the debt. While these loans and leases are collateralized by real property in an effort to mitigate risk, it is possible the liquidation of collateral will not fully satisfy the obligation.

Commercial and Agricultural - Commercial business loans consist of loans or lines of credit to finance accounts receivable, inventory or other general business needs, business credit cards, and lease financing agreements for equipment, vehicles, or other assets. The primary risk associated with commercial and industrial and lease financing loans is the ability of borrowers to achieve business results consistent with those projected at origination. Failure to achieve these projections presents risk the borrower will be unable to service the debt consistent with the contractual terms of the loan or lease.

•Home equity - Home equity loans consist of home equity lines of credit and other lines of credit secured by first or second liens on the borrower’s primary residence. These loans are secured by both senior and junior liens on the residential real estate and are particularly susceptible to declining collateral values. This risk is elevated for loans secured by junior lines as a substantial decline in value could render the junior lien position effectively unsecured.

•Other - Consumer loans consist of loans to finance unsecured home improvements, student loans, automobiles and revolving lines of credit that can be secured or unsecured. The value of the underlying collateral within this class is at risk of potential rapid depreciation which could result in unpaid balances in excess of the collateral.

The Company calculates the allowance for credit losses for each pool using a remaining life loss methodology with a two quarter reasonable and supportable forecast period and an immediate reversion period. Management believes that the Company’s historical loss experience provides the best basis for its assessment of expected credit losses to determine the allowance for credit losses. The Company uses its own internal data to measure historical credit loss experience within the pools with similar risk characteristics over an economic cycle. The Company then forecasts the calculated historical loss rates over the calculated remaining life of loans by pool.

Additionally, the allowance for credit losses calculation includes subjective adjustments for qualitative risk factors that are likely to cause estimated credit losses to differ from historical experience. These qualitative adjustments may increase or reduce reserve levels and include adjustments for lending management experience and risk tolerance, loan review and audit results, asset quality and portfolio trends, loan portfolio growth, industry concentrations, trends in underlying collateral, external factors and economic conditions not already captured.

Loans that do not share risk characteristics are evaluated on an individual basis. When management determines that foreclosure is probable and the borrower is experiencing financial difficulty, the expected credit losses are based on the fair value of collateral at the reporting dated adjusted for selling costs as appropriate.

Financial instruments include off-balance sheet credit instruments, 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 records an allowance for credit losses on off-balance sheet credit exposures, unless the commitments to extend credit are unconditionally cancellable, through a charge to provision for unfunded commitments in the Company’s income statements. The allowance for credit losses on off-balance sheet credit exposures 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 as well as any third-party guarantees. The allowance for unfunded commitments is included in other liabilities on the Company’s consolidated balance sheets.

In January 2023, the Company adopted ASU 2022-02, “Financial Instruments – Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures” (“ASU 2022-02”), which eliminated the accounting guidance for troubled debt restructurings (“TDRs”) while enhancing disclosure requirements for certain loan refinancing and restructurings by creditors when a borrower is experiencing financial difficulty. In addition, for public business entities, the guidance requires disclosure of current-period gross write-offs by year of origination for financing receivables and net investments in leases within the scope of Subtopic 326-20. The Company adopted the guidance using the modified retrospective method. Upon adoption of this guidance, the Company no longer establishes a specific reserve for modifications to borrowers experiencing financial difficulty. Instead, these modifications are included in their respective cohort and a historical loss rate is applied to the current loan balance to arrive at the quantitative baseline portion of the allowance. The difference between the allowance previously determined and the current allowance was not material to the Company’s financial statements.

In December 2022, the Financial Accounting Standards Board (“FASB”) issued amendments to extend the period of time preparers can use the reference rate reform relief guidance under ASC Topic 848 from December 31, 2022, to December 31, 2024, to address the fact that all London Interbank Offered Rate ("LIBOR") tenors were not discontinued as of December 31, 2021, and some tenors will be published until June 2023. The amendments are effective immediately for all entities and are applied prospectively. The Company does not expect these amendments to have a material effect on its financial statements.