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Securities Sold Under Agreements to Repurchase (Tables)
 12 Months Ended
Dec. 31, 2021
Brokers and Dealers [Abstract]  
Summary of Securities Pledged as Collateral Under Repurchase Agreements
The following table presents detail regarding the securities pledged as collateral under repurchase agreements as of December 31, 2021 and 2020. All of the repurchase agreements are overnight agreements.
 
   
December 31,
2021
    
December 31,
2020
  
Securities pledged for repurchase agreements:
                
U.S. Treasury securities
   $ 16,478     $ 899  
Obligations of U.S. government agencies
     9,017       28,015  
   
 
 
    
 
 
  
Total securities pledged
   $     25,495     $     28,914  
   
 
 
    
 
 
  
Gross amount of recognized liabilities for repurchase agreements
   $ 25,495     $ 28,914  
   
 
 
    
 
 
  
Amounts related to agreements not included in offsetting disclosures above
   $ —     $ —  
   
 
 
    
 
 
  
Schedule of Securities Sold Under Agreements to Repurchase
Information concerning securities sold under agreements to repurchase was as follows:
 
    
2021
    
2020
    
2019
  
Outstanding balance at year end
    $ 25,495     $ 28,914     $ 18,674  
Average balance during the year
      24,390       24,390       18,321  
Average interest rate during the year
      0.09 %      0.10 %      0.10 % 
Maximum month-end balance during the year
    $     34,200     $     31,885     $     21,970  
Weighted average interest rate at year end
      0.05 %      0.10 %      0.10 %