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Unused Available Lines of Credit (Details) - USD ($)
Dec. 31, 2022
Dec. 31, 2021
Line of Credit Facility [Line Items]    
Long-term line of credit $ 0 $ 0
Six Corresponding Banks    
Line of Credit Facility [Line Items]    
Line of credit facility, maximum borrowing capacity 83,000,000  
Federal Home Loan Bank    
Line of Credit Facility [Line Items]    
Line of credit facility, maximum borrowing capacity 237,800,000  
Two Corresponding Banks    
Line of Credit Facility [Line Items]    
Line of credit facility, maximum borrowing capacity $ 200,000,000