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CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Available-for-sale debt securities $ 481,933 $ 618,525
Available-for-sale debt securities, allowance for credit losses 0 0
Held-to-maturity debt securities 10,882 76,167
Held-to-maturity debt securities, allowance for credit losses 5 10
Loans held for investment fair value $ 0 $ 0
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 17,293,183 17,295,968
Common Stock, outstanding 17,293,183 17,295,968
Class B Common Stock    
Common Stock, no par value $ 0 $ 0
Common Stock, shares authorized 5,000,000 5,000,000
Common Stock, issued 2,150,090 2,156,662
Common Stock, outstanding 2,150,090 2,156,662