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Investment Securities, Held-to-maturity Securities, Maturity (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Amortized Cost [Abstract]        
Amortized Cost $ 9,183   $ 9,923  
Fair Value [Abstract]        
Fair Value 9,550   10,695  
Held-to-maturity, Continuous Unrealized Loss Position, Fair Value [Abstract]        
Held to maturity securities fair value 2,600     $ 442
Held to maturity securities in unrecognized loss of less than 12 months 16   1  
Sales and transfers of held to maturity securities 0 $ 0    
Held-to-maturity, allowance for credit loss 0      
Held to maturity securities on non-accrual status 0      
Mortgage-Backed Securities and Collateralized Mortgage Obligations - Residential [Member]        
Amortized Cost [Abstract]        
Securities, amortized cost 9,183      
Amortized Cost 9,183   9,923  
Fair Value [Abstract]        
Securities, fair value 9,550      
Fair Value $ 9,550   $ 10,695