v3.26.1
Investment Securities - Narrative (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
security
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
security
$ / shares
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
security
Investments, Debt and Equity Securities [Abstract]          
Allowance for credit losses, held to maturity $ 20,000.0   $ 20,000.0   $ 20,000.0
Allowance for credit losses, available for sale 0   0   $ 0
Proceeds from sale of securities available-for-sale $ 0 $ 0 $ 0 $ 0  
Number of securities in unrealized loss positions | security 145   145   147
Number of investment securities in a continuous loss position for twelve months or more | security 143   143    
Investment securities in a loss position for less than twelve months | security 2   2    
Held-to-maturity securities in a continuous loss position for more than twelve months | security 1   1   1
FHLB stock price (in USD per share) | $ / shares     $ 100    
Federal Home Loan Bank of San Francisco (“FHLB”) stock $ 15,000,000   $ 15,000,000   $ 15,000,000
Equity investments $ 15,200,000   15,200,000   $ 12,100,000
Earnings (losses) on equity investments     $ (294,000) $ 399,000