Loans and Allowance for Credit Losses - Loans (Details)	12 Months Ended
	Dec. 31, 2023 USD ($) contract borrower	Dec. 31, 2022 USD ($) borrower	Dec. 31, 2021 USD ($)
Loans and Allowance for Credit Losses - Loans
Amount of recorded investment in new troubled debt restructurings, totaled	$ 30,000	$ 34,000
Number of borrowers | borrower	12	19
Specific reserve amount	$ 201,000	$ 80,000
Non-accrual	527,000	488,000	$ 338,000
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	10,000
Amount of interest that would have been accrued from non performing financial receivable, totaled	15,000	29,000
Consumer Loans
Loans and Allowance for Credit Losses - Loans
Non-accrual	83,000	85,000
Real Estate Loan
Loans and Allowance for Credit Losses - Loans
Non-accrual	145,000	104,000
Commercial and Industrial
Loans and Allowance for Credit Losses - Loans
Non-accrual	299,000	299,000
Consumer
Loans and Allowance for Credit Losses - Loans
Amount of consumer and indirect loans, outstanding	30,038
Amount of consumer and indirect loans, specific reserves	$ 21,367
Number Of Loan Consumer And Indirect Loans | contract	1
Single-family Residential | Real Estate Loan
Loans and Allowance for Credit Losses - Loans
Amount of recorded investment in new troubled debt restructurings, totaled	$ 30,000	34,000
Non-accrual	145,000	104,000	$ 123,000
Commercial and Industrial
Loans and Allowance for Credit Losses - Loans
Amount of consumer and indirect loans, outstanding	299,453
Amount of consumer and indirect loans, specific reserves	$ 179,453
Number Of Loan Consumer And Indirect Loans | contract	1
Commercial and Industrial | Commercial and Industrial
Loans and Allowance for Credit Losses - Loans
Non-accrual	$ 299,000	$ 299,000