v3.26.3
Loan Portfolio and Allowance for Credit Losses - Amortized Cost of Collateral-dependent Loans by Class (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Real Estate [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net $ 25,798 $ 25,739
Real Estate [Member] | Installment [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 0 0
Investment Securities/Cash [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 0 0
Investment Securities/Cash [Member] | Installment [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 0 0
Other [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 44 29
Other [Member] | Installment [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 38 22
Commercial Real Estate [Member] | Real Estate [Member] | Commercial [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 2,089 2,076
Commercial Real Estate [Member] | Investment Securities/Cash [Member] | Commercial [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 0 0
Commercial Real Estate [Member] | Other [Member] | Commercial [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 0 0
Other [Member] | Real Estate [Member] | Commercial [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 0 0
Other [Member] | Investment Securities/Cash [Member] | Commercial [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 0 0
Other [Member] | Other [Member] | Commercial [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 6 7
First Mortgages [Member] | Real Estate [Member] | Real Estate Mortgage - 1 to 4 Family [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 20,574 20,591
First Mortgages [Member] | Investment Securities/Cash [Member] | Real Estate Mortgage - 1 to 4 Family [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 0 0
First Mortgages [Member] | Other [Member] | Real Estate Mortgage - 1 to 4 Family [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 0 0
Home Equity Loans [Member] | Real Estate [Member] | Real Estate Mortgage - 1 to 4 Family [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 489 511
Home Equity Loans [Member] | Investment Securities/Cash [Member] | Real Estate Mortgage - 1 to 4 Family [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 0 0
Home Equity Loans [Member] | Other [Member] | Real Estate Mortgage - 1 to 4 Family [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 0 0
Home Equity Lines of Credit [Member] | Real Estate [Member] | Real Estate Mortgage - 1 to 4 Family [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 2,646 2,561
Home Equity Lines of Credit [Member] | Investment Securities/Cash [Member] | Real Estate Mortgage - 1 to 4 Family [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net 0 0
Home Equity Lines of Credit [Member] | Other [Member] | Real Estate Mortgage - 1 to 4 Family [Member]    
Loan Portfolio and Allowance for Credit Losses [Abstract]    
Total loans, net $ 0 $ 0