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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Available-for-sale debt securities $ 618,525 $ 663,003
Available-for-sale debt securities, allowance for credit losses 0 0
Held-to-maturity debt securities 76,167 87,357
Held-to-maturity debt securities, allowance for credit losses 10 10
Loans held for investment fair value $ 0 $ 2
Preferred stock, no par value $ 0 $ 0
Class A Common Stock    
Common Stock, no par value $ 0 $ 0
Common Stock, shares authorized 30,000,000 30,000,000
Common Stock, issued 17,203,355 17,584,928
Common Stock, outstanding 17,203,355 17,584,928
Class B Common Stock    
Common Stock, no par value $ 0 $ 0
Common Stock, shares authorized 5,000,000 5,000,000
Common Stock, issued 2,154,562 2,159,495
Common Stock, outstanding 2,154,562 2,159,495