Basis of Presentation - Significant Accounting Policies (Policies)	6 Months Ended
Jun. 30, 2024
Accounting Policies [Abstract]
Allowance for credit losses and provision for credit losses	Allowance for credit losses and provision for 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 Bank measures expected credit losses for loans on a pooled basis when similar risk characteristics exist. Generally, collectively assessed loans are grouped by call report code and then risk grade grouping. Risk grade is grouped within each call report code by pass, watch, special mention, substandard, and doubtful. Other loan types are separated into their own cohorts due to specific risk characteristics for that pool of loans. The Bank has elected a non-discounted cash flow methodology with a probability of default (PD) and loss-given default (LGD) for all cohorts. The PD calculation looks at the historical loan portfolio at particular points in time (each month during the lookback period) to determine the probability that loans in a certain cohort will default over the next 12-month period. A default is defined as a loan that has moved to past due 90 days and greater, nonaccrual status, or experienced a charge-off during the period. Currently, the Bank’s historical data is insufficient due to a minimal amount of default activity or zero defaults, therefore management uses index PDs comprised of rates derived from the PD experience of other community banks in place of the Bank’s historical PDs. The LGD calculation looks at actual losses (net charge-offs) experienced over the entire lookback period for each cohort of loans. The aggregate loss amount is divided by the exposure at default to determine an LGD rate. All defaults (non-accrual, charge-off, or greater than 90 days past due) occurring during the lookback period are included in the denominator, whether a loss occurred or not and exposure at default is determined by the loan balance immediately preceding the default event (i.e. nonaccrual or charge-off). Due to the very limited charge-off history, management uses index LGDs comprised of rates derived from the LGD experience of other community banks in place of the Bank’s historical LGDs. The Bank utilizes reasonable and supportable forecasts of future economic conditions when estimating the allowance for credit losses on loans. The calculation includes a 12-month PD forecast based on the peer index regression model comparing peer defaults to the national unemployment rate. After the forecast period, PD rates revert on a straight-line basis back to long-term historical average rates over 12 months. The Bank recognizes that all significant factors that affect the collectability of the loan portfolio must be considered to determine the estimated credit losses as of the evaluation date. Furthermore, the methodology, in and of itself and even when selectively adjusted by comparison to market and peer data, does not provide a sufficient basis to determine the estimated credit losses. The Bank adjusts the modeled historical losses by a qualitative adjustment to incorporate all significant risks to form a sufficient basis to estimate the credit losses. These qualitative adjustments may increase or reduce reserve levels and include adjustments for lending management experience, loan review and audit results, asset quality and portfolio trends, loan portfolio growth, and concentrations, trends in underlying collateral, as well as external factors and economic conditions not already captured. Loans that do not share risk characteristics are evaluated on an individual basis. Generally, this population includes loans on non-accrual status, however, they can also include any loan that does not share risk characteristics with its respective pool. 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 the collateral at the reporting date unadjusted for selling costs as appropriate. When the expected source of repayment is from a source other than the underlying collateral, impairment will generally be measured based on the present value of expected proceeds discounted at the contractual interest rate. The loss allocations for individually assessed and collectively assessed loans are totaled to determine the total required allowance for credit losses. This total is compared to the current allowance on the Bank’s books and adjustments made accordingly by a charge or credit to the provision for credit losses.
Investment Securities Impairment	Investment Securities Impairment Effective January 1, 2023, the Company estimates and recognizes an allowance for credit losses for held-to-maturity (HTM) debt securities pursuant to ASU No. 2016-13. The Company has a zero loss expectation for its HTM securities portfolio, except for U.S. State and Municipal securities, and therefore it is not required to estimate an allowance for credit losses related to these securities. For HTM securities that do not have a zero loss expectation, the allowance for credit losses is based on the security’s amortized cost, excluding interest receivable, and represents the portion of the amortized cost that the Company does not expect to collect over the life of the security. The allowance for credit losses is determined using average industry credit ratings and historical loss experience, and is initially recognized upon acquisition of the securities, and subsequently remeasured on a recurring basis. The Company evaluates available for sale (AFS) debt securities that experienced a decline in fair value below amortized cost for credit impairment. In performing an assessment of whether any decline in fair value is due to a credit loss, the Company considers the extent to which the fair value is less than the amortized cost, changes in credit ratings, any adverse economic conditions, as well as all relevant information at the individual security level, such as credit deterioration of the issuer, explicit or implicit guarantees by the federal government or collateral underlying the security. If it is determined that the decline in fair value was due to credit losses, an allowance for credit losses is recorded, limited to the amount the fair value is less than the amortized cost basis. The non-credit related decrease in the fair value, such as a decline due to changes in market interest rates, is recorded in other comprehensive income, net of tax. The Company recognizes a credit impairment if the Company has the intent to sell the security, or it is more likely than not that the Bank will be required to sell the security before recovery of its amortized cost. Prior to the adoption of ASU No. 2016-13 Management evaluated AFS and HTM debt securities for other-than-temporary-impairment on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation.

Basis of Presentation - Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2024

Allowance for credit losses and provision for 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 Bank measures expected credit losses for loans on a pooled basis when similar risk characteristics exist. Generally, collectively assessed loans are grouped by call report code and then risk grade grouping. Risk grade is grouped within each call report code by pass, watch, special mention, substandard, and doubtful. Other loan types are separated into their own cohorts due to specific risk characteristics for that pool of loans.

The Bank has elected a non-discounted cash flow methodology with a probability of default (PD) and loss-given default (LGD) for all cohorts. The PD calculation looks at the historical loan portfolio at particular points in time (each month during the lookback period) to determine the probability that loans in a certain cohort will default over the next 12-month period. A default is defined as a loan that has moved to past due 90 days and greater, nonaccrual status, or experienced a charge-off during the period. Currently, the Bank’s historical data is insufficient due to a minimal amount of default activity or zero defaults, therefore management uses index PDs comprised of rates derived from the PD experience of other community banks in place of the Bank’s historical PDs.

The LGD calculation looks at actual losses (net charge-offs) experienced over the entire lookback period for each cohort of loans. The aggregate loss amount is divided by the exposure at default to determine an LGD rate. All defaults (non-accrual, charge-off, or

greater than 90 days past due) occurring during the lookback period are included in the denominator, whether a loss occurred or not and exposure at default is determined by the loan balance immediately preceding the default event (i.e. nonaccrual or charge-off). Due to the very limited charge-off history, management uses index LGDs comprised of rates derived from the LGD experience of other community banks in place of the Bank’s historical LGDs.

The Bank utilizes reasonable and supportable forecasts of future economic conditions when estimating the allowance for credit losses on loans. The calculation includes a 12-month PD forecast based on the peer index regression model comparing peer defaults to the national unemployment rate. After the forecast period, PD rates revert on a straight-line basis back to long-term historical average rates over 12 months.

The Bank recognizes that all significant factors that affect the collectability of the loan portfolio must be considered to determine the estimated credit losses as of the evaluation date. Furthermore, the methodology, in and of itself and even when selectively adjusted by comparison to market and peer data, does not provide a sufficient basis to determine the estimated credit losses. The Bank adjusts the modeled historical losses by a qualitative adjustment to incorporate all significant risks to form a sufficient basis to estimate the credit losses. These qualitative adjustments may increase or reduce reserve levels and include adjustments for lending management experience, loan review and audit results, asset quality and portfolio trends, loan portfolio growth, and concentrations, trends in underlying collateral, as well as external factors and economic conditions not already captured.

Loans that do not share risk characteristics are evaluated on an individual basis. Generally, this population includes loans on non-accrual status, however, they can also include any loan that does not share risk characteristics with its respective pool. 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 the collateral at the reporting date unadjusted for selling costs as appropriate. When the expected source of repayment is from a source other than the underlying collateral, impairment will generally be measured based on the present value of expected proceeds discounted at the contractual interest rate.

The loss allocations for individually assessed and collectively assessed loans are totaled to determine the total required allowance for credit losses. This total is compared to the current allowance on the Bank’s books and adjustments made accordingly by a charge or credit to the provision for credit losses.

Investment Securities Impairment

Effective January 1, 2023, the Company estimates and recognizes an allowance for credit losses for held-to-maturity (HTM) debt securities pursuant to ASU No. 2016-13. The Company has a zero loss expectation for its HTM securities portfolio, except for U.S. State and Municipal securities, and therefore it is not required to estimate an allowance for credit losses related to these securities. For HTM securities that do not have a zero loss expectation, the allowance for credit losses is based on the security’s amortized cost, excluding interest receivable, and represents the portion of the amortized cost that the Company does not expect to collect over the life of the security. The allowance for credit losses is determined using average industry credit ratings and historical loss experience, and is initially recognized upon acquisition of the securities, and subsequently remeasured on a recurring basis. The Company evaluates available for sale (AFS) debt securities that experienced a decline in fair value below amortized cost for credit impairment. In performing an assessment of whether any decline in fair value is due to a credit loss, the Company considers the extent to which the fair value is less than the amortized cost, changes in credit ratings, any adverse economic conditions, as well as all relevant information at the individual security level, such as credit deterioration of the issuer, explicit or implicit guarantees by the federal government or collateral underlying the security. If it is determined that the decline in fair value was due to credit losses, an allowance for credit losses is recorded, limited to the amount the fair value is less than the amortized cost basis. The non-credit related decrease in the fair value, such as a decline due to changes in market interest rates, is recorded in other comprehensive income, net of tax. The Company recognizes a credit impairment if the Company has the intent to sell the security, or it is more likely than not that the Bank will be required to sell the security before recovery of its amortized cost. Prior to the adoption of ASU No. 2016-13 Management evaluated AFS and HTM debt securities for other-than-temporary-impairment on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation.