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Investment Securities - Additional Information (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
USD ($)
Security
Jun. 30, 2021
Security
Jun. 30, 2022
USD ($)
Security
Jun. 30, 2021
Security
Dec. 31, 2021
USD ($)
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]          
Number of available-for-sale securities in unrealized loss position less than 12 months 57   57    
Number of available-for-sale securities in unrealized loss position 12 months or greater 8   8    
Sales of available-for-sale securities 0 0 0 0  
Debt Securities, Available-for-sale | $ $ 44,551   $ 44,551   $ 48,557
Collateral Pledged          
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]          
Debt Securities, Available-for-sale | $ $ 2,200   $ 2,200   2,800
Government Agency Securities          
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]          
Number of available-for-sale securities in unrealized loss position less than 12 months 4   4    
U.S. Treasury Strip Bonds          
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]          
Number of available-for-sale securities in unrealized loss position less than 12 months 5   5    
Debt Securities, Available-for-sale | $ $ 4,501   $ 4,501   5,050
Government Agency Mortgage-Backed Securities          
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]          
Number of available-for-sale securities in unrealized loss position less than 12 months 39   39    
Debt Securities, Available-for-sale | $ $ 19,335   $ 19,335   21,339
Municipal Securities - Tax Exempt          
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]          
Number of available-for-sale securities in unrealized loss position less than 12 months 4   4    
Debt Securities, Available-for-sale | $ $ 442   $ 442   536
Corporate Securities          
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]          
Number of available-for-sale securities in unrealized loss position less than 12 months 13   13    
Debt Securities, Available-for-sale | $ $ 8,998   $ 8,998   $ 9,300