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Fair Value of Assets and Liabilities
 9 Months Ended
Sep. 30, 2025
Fair Value Disclosures [Abstract]  
Fair Value of Assets and Liabilities Fair Value of Assets and Liabilities
 
Fair Value Hierarchy and Fair Value Measurement
 
We group our assets and liabilities that are measured at fair value into three levels within the fair value hierarchy, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are:
 
Level 1: Valuations are based on unadjusted quoted prices in active markets for identical assets or liabilities.
 
Level 2: Valuations are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuations for which all significant assumptions are observable or can be corroborated by observable market data.
 
Level 3: Valuations are based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Values are determined using pricing models and discounted cash flow models and may include significant management judgment and estimation.

Transfers between levels of the fair value hierarchy are recognized through our monthly and/or quarterly valuation process in the reporting period during which the event or circumstances that caused the transfer occurred. No such transfers occurred in the years presented.

The following table summarizes our assets and liabilities that were required to be recorded at fair value on a recurring basis.
(in thousands)  
Description of Financial Instruments
Carrying ValueQuoted Prices in Active Markets for Identical Assets (Level 1)Significant Other Observable Inputs
(Level 2)		Significant Unobservable Inputs 
(Level 3)
Measurement Categories: Changes in Fair Value Recorded In1
September 30, 2025    
Securities available-for-sale:    
Commercial mortgage-backed securities, mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies
$514,923 $— $514,923 $— OCI
Obligations of state and political subdivisions$28,682 $— $28,682 $— OCI
Derivative financial assets (interest rate contracts)$156 $— $156 $— NI
Derivative financial liabilities (interest rate contracts)$12 $— $12 $— NI
December 31, 2024
Securities available-for-sale:  
Commercial mortgage-backed securities, mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies
$279,838 $— $279,838 $— OCI
SBA-backed securities$308 $— $308 $— OCI
Debentures of government sponsored agencies$7,210 $— $7,210 $— OCI
U.S. Treasury securities$10,815 $10,815 $— $— OCI
Obligations of state and political subdivisions$83,714 $— $83,714 $— OCI
Corporate bonds$5,649 $— $5,649 $— OCI
Derivative financial assets (interest rate contracts)$333 $— $333 $— NI
 1 Other comprehensive income ("OCI") or net income ("NI").

Available-for-sale securities are recorded at fair value on a recurring basis. When available, quoted market prices (Level 1) are used to determine the fair value of available-for-sale securities. If quoted market prices are not
available, we obtain pricing information from a reputable third-party service provider, who may utilize valuation techniques that use current market-based or independently sourced parameters, such as bid/ask prices, dealer-quoted prices, interest rates, benchmark yield curves, prepayment speeds, probability of default, loss severity and credit spreads (Level 2).   Level 2 securities include obligations of state and political subdivisions, U.S. agencies or government-sponsored agencies' debt securities, mortgage-backed securities, government agency-issued securities, and corporate bonds. As of September 30, 2025 and December 31, 2024, there were no Level 3 securities.

Held-to-maturity securities may be subject to an allowance for credit losses as a result of our evaluation of expected losses due to credit quality factors. We did not record any credit loss expense on held-to-maturity securities during either the nine months ended September 30, 2025 or September 30, 2024. Fair value of held-to-maturity securities is determined using the same techniques discussed above for available-for-sale securities.

On a recurring basis, derivative financial instruments are recorded at fair value, which is based on the income approach using observable Level 2 market inputs, reflecting market expectations of future interest rates as of the measurement date.  Standard valuation techniques are used to calculate the present value of the future expected cash flows assuming an orderly transaction. Valuation adjustments may be made to reflect both our own credit risk and the counterparties’ credit risk in determining the fair value of the derivatives. These unobservable inputs are not considered significant inputs to the fair value measurement overall. Level 2 inputs for the valuations are limited to observable market prices for Secured Overnight Financing Rate ("SOFR") and Overnight Index Swap ("OIS") rates (for the very short term), quoted prices for SOFR futures contracts, observable market prices for SOFR and OIS swap rates, and one-month and three-month SOFR basis spreads at commonly quoted intervals. Mid-market pricing of the inputs is used as a practical expedient in the fair value measurements.  We project spot rates at reset days specified by each swap contract to determine future cash flows, then discount to present value using OIS curves as of the measurement date.  When the value of any collateral placed with counterparties is less than the interest rate derivative liability, a credit valuation adjustment ("CVA") is applied to reflect the credit risk we pose to counterparties.  We have used the spread between the Standard & Poor's BBB rated U.S. Bank Composite rate and SOFR for the closest maturity term corresponding to the duration of the swaps to derive the CVA. Because there is little to no counterparty risk, we did not incorporate credit adjustments from our assessment of the counterparty credit risk in determining fair value. For further discussion on our methodology for valuing our derivative financial instruments, refer to Note 9, Derivative Financial Instruments and Hedging Activities.

Certain financial assets may be measured at fair value on a non-recurring basis. These assets are subject to fair value adjustments that result from the application of the lower of cost or fair value accounting or write-downs of individual assets, such as individually analyzed loans that are collateral dependent and other real estate owned ("OREO").
(in thousands)Carrying ValueQuoted Prices in Active Markets for Identical Assets (Level 1)Significant Other Observable Inputs
(Level 2)		Significant Unobservable Inputs 
(Level 3)
Disclosures about Fair Value of Financial Instruments
 
The table below is a summary of fair value estimates for financial instruments as of September 30, 2025 and December 31, 2024, excluding financial instruments recorded at fair value on a recurring basis (summarized in the first table in this note). The carrying amounts in the following table are recorded in the consolidated statements of condition under the indicated captions. Further, we have not disclosed the fair value of financial instruments specifically excluded from disclosure requirements such as bank-owned life insurance policies ("BOLI"), lease obligations and non-maturity deposit liabilities. Additionally, we held shares of Federal Home Loan Bank ("FHLB") of San Francisco stock at cost as of September 30, 2025 and December 31, 2024. There were no impairments or changes resulting from observable price changes in orderly transactions for the identical or similar investments of the same issuer as of September 30, 2025 or December 31, 2024. See further discussion on values within Note 4, Investment Securities.
 September 30, 2025December 31, 2024
(in thousands)Carrying AmountsFair ValueFair Value HierarchyCarrying AmountsFair ValueFair Value Hierarchy
Financial assets (recorded at amortized cost)  
Cash and cash equivalents$219,333 $219,333 Level 1$137,304 $137,304 Level 1
Investment securities held-to-maturity811,751 724,807 Level 2879,199 763,535 Level 2
Loans, net of allowance for credit losses2,060,501 2,002,717 Level 32,052,600 1,965,429 Level 3
Interest receivable10,661 10,661 Level 211,934 11,934 Level 2
Financial liabilities (recorded at amortized cost)  
Time deposits216,516 217,558 Level 2242,377 243,773 Level 2
Interest payable1,698 1,698 Level 23,019 3,019 Level 2

The fair value of loans is based on exit price techniques and obtained from an independent third-party that uses its proprietary valuation model and methodology and may differ from the actual price from a prospective buyer. The discounted cash flow valuation approach reflects key inputs and assumptions that are unobservable, such as loan probability of default, loss given default, prepayment speed, and market discount rates.
The fair value of fixed-rate time deposits is estimated by discounting future contractual cash flows using discount rates that reflect the current observable market rates offered for time deposits of similar remaining maturities.
The value of off-balance-sheet financial instruments is estimated based on the fee income associated with the commitments, which in the absence of credit exposure, is considered to approximate their settlement value. The fair value of commitment fees was not material as of September 30, 2025 or December 31, 2024.