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Securities (Contractual Maturity) (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Available-for-Sale, Amortized Cost    
Due in one year or less $ 0  
Due in one year through five years 8,148  
Due in five through ten years 33,651  
Due in over ten years 132,797  
Amortized cost 174,596 $ 172,319
Available-for-Sale, Estimated Fair Value    
Due in one year or less 0  
Due in one year through five years 8,439  
Due in five through ten years 35,229  
Due in over ten years 135,606  
Estimated fair value 179,274 173,133
Held-to-Maturity, Amortized Cost    
Due in one year or less 2,804  
Due in one year through five years 12,085  
Due in five through ten years 10,872  
Due in over ten years 3,136  
Amortized cost 28,897 32,700
Held-to-Maturity, Estimated Fair Value    
Due in one year or less 2,823  
Due in one year through five years 12,344  
Due in five through ten years 11,513  
Due in over ten years 3,284  
Estimated Fair Value $ 29,964 $ 33,188