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CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Available-for-sale, amortized cost, net	$ 624,955	$ 669,092
Available-for-sale, allowance for credit loss	0	0
Securities held to maturity, estimated fair value	657	785
Securities held to maturity, allowance for credit loss	$ 0	$ 0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, shares issued (in shares)	5,310,076	5,310,076
Treasury stock, at cost (in shares)	553,499	572,663

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