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Securities - Pledged as Collateral (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Available for sale securities    
Amortized Cost $ 360,981 $ 280,824
Fair Value 363,413 286,389
Securities Pledged as Collateral    
Available for sale securities    
Amortized Cost 157,620 146,660
Fair Value $ 159,860 $ 150,130