Borrowing Arrangements - Textual (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Borrowing Arrangements
Debt instrument, interest rate, stated percentage	6.16%
Investment securities, amortized cost	$ 525,499	$ 536,334
Investment securities, fair value	469,033	477,113
Federal Home Loan Bank Advances
Borrowing Arrangements
Remaining borrowing capacity	589,261
Federal Home Loan Bank Advances \| Asset Pledged as Collateral
Borrowing Arrangements
Debt Securities	1,104,959
Investment securities, amortized cost	154,610	153,139
Investment securities, fair value	194,878	193,424
Overnight Borrowings
Borrowing Arrangements
Short-term Debt	$ 45,000
Debt instrument, interest rate, stated percentage	4.52%
Federal Home Loan Bank of San Francisco
Borrowing Arrangements
Advances from FHLB	$ 90,000
Advances from FHLB, weighted average interest rate	0.86%
Federal Home Loan Bank of San Francisco, Maturing April 2025
Borrowing Arrangements
Advances from FHLB	$ 45,000
Federal Home Loan Bank of San Francisco, Maturing June 2025
Borrowing Arrangements
Advances from FHLB	45,000
Unsecured Credit Lines
Borrowing Arrangements
Maximum borrowing capacity on lines of credit	110,000	110,000
Federal Reserve Bank
Borrowing Arrangements
Maximum borrowing capacity on lines of credit	3,632	3,669
Fair value of collateral	3,770	3,828
Federal Reserve Bank \| Asset Pledged as Collateral
Borrowing Arrangements
Collateral pledged	$ 4,270	$ 4,406

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The carrying amount (fair value) as of the balance sheet date of securities held that had been pledged by counterparties under financing and lending arrangements, pursuant to which the entity has the right by agreement or custom to sell or re-pledge such securities.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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