Fair Values of Financial Instruments - Estimated fair values of the Company's financial instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financial assets: Carrying Amount
Cash and due from banks	$ 1,940	$ 2,035
Interest-bearing deposits in other financial institutions	12,189	22,680
Federal funds sold	1,112	5,377
Investment securities available for sale	139,427	144,133
Investments in restricted stock	1,217	221
Ground rents	130	131
Loans, less allowance for credit losses	174,150	184,278
Accrued interest receivable	1,192	1,159
Cash value of life insurance	8,657	8,493
Financial liabilities: Carrying Amount
Deposits	300,067	362,947
Short-term borrowings	30,000
Accrued interest payable	366	9
Unrecognized financial instruments: Carrying Amount
Commitments to extend credit	33,162	30,718
Standby letters of credit	45	45
Financial Assets: Fair Value
Cash and due from banks	1,940	2,035
Interest-bearing deposits in other financial institutions	12,189	22,680
Federal funds sold	1,112	5,377
Investment securities available for sale	139,427	144,133
Investments in restricted stock	1,217	221
Ground rents	130	131
Loans, less allowance for credit losses	161,802	177,254
Accrued interest receivable	1,192	1,159
Cash value of life insurance	8,657	8,493
Financial liabilities: Fair Value
Deposits	252,707	299,773
Short-term borrowings	30,000
Accrued interest payable	366	9
Unrecognized financial instruments: Fair Value
Commitments to extend credit	33,162	30,718
Standby letters of credit	$ 45	$ 45