Investment Securities - Pledged Investment Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Marketable Securities [Line Items]
Securities available-for-sale	$ 104,238	$ 108,083
The Federal Reserve Discount Window, increasing borrowing capacity
Marketable Securities [Line Items]
Securities available-for-sale	47,387	48,964
Deposits and Federal Funds Purchased
Marketable Securities [Line Items]
Securities available-for-sale	100,764	104,399
CALIFORNIA \| The State of California, securing deposits of public funds and borrowings
Marketable Securities [Line Items]
Securities available-for-sale	$ 53,377	$ 55,435

Amount 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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+ Details