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Cash and Due from Banks
12 Months Ended
Dec. 31, 2022
Cash and Due from Banks [Abstract]  
Cash and Due from Banks Cash and Due from Banks
    The Company is no longer required to maintain minimum cash balances or deposits with the Federal Reserve Bank of San Francisco ("Federal Reserve Bank"). 
    The Company is required to maintain a $300,000 balance with a correspondent bank for outsourced servicing of ATMs at both December 31, 2022 and 2021.
    The Company is required to maintain a $100,000 and $30,000 balance with a correspondent bank to collateralize the initial margin and the fair value exposure of one of its interest rate swaps, respectively, at December 31, 2022. The Company was required to maintain a $100,000 and $2.8 million balance with a correspondent bank to collateralize the initial margin and the fair value exposure of one of its interest rate swaps, respectively, at December 31, 2021.