Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financial assets - Carrying Amount
Cash and due from banks	$ 2,117	$ 2,420
Interest-bearing deposits in other financial institutions	29,730	10,017
Federal funds sold	5,246	853
Investment securities available for sale	114,049	71,486
Investments in restricted stock	1,199	1,437
Ground rents	140	143
Loans, less allowance for credit losses	252,296	282,672
Accrued interest receivable	1,302	961
Cash value of life insurance	8,181	8,023
Financial liabilities - Carrying Amount
Deposits	349,620	321,440
Long-term borrowings	0	0
Short-term borrowings	29,912	25,000
Accrued interest payable	16	100
Unrecognized financial instruments:
Commitments to extend credit	31,561	26,297
Standby letters of credit	1,044	1,059
Financial assets - Fair Value
Cash and due from banks	2,117	2,420
Interest-bearing deposits in other financial institutions	29,730	10,017
Federal funds sold	5,246	853
Investment securities available for sale, at fair value	114,049	71,486
Investments in restricted stock	1,199	1,437
Ground rents	140	143
Loans, less allowance for credit losses	253,946	282,583
Accrued interest receivable	1,302	961
Cash value of life insurance	8,181	8,023
Financial liabilities - Fair Value
Deposits	350,666	300,944
Short-term borrowings	29,935	25,386
Accrued interest payable	16	100
Unrecognized financial instruments:
Commitments to extend credit	31,561	26,297
Standby letters of credit	$ 1,044	$ 1,059