Fair Value Measurements (Carrying Amounts and Estimated Fair Values of Financial Instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financial assets:
Interest bearing deposits with banks	$ 598	$ 19,753
Interest bearing time deposits with banks	735	735
Restricted investment in bank stock	2,116	3,423
Financial liabilities:
Non-interest bearing deposits	182,022	168,115
Interest bearing deposits	526,425	454,751
Short-term borrowings	4,227	24,750
Federal Reserve Bank ("FRB") advances	0	27,955
Long-term debt	20,000	35,000
Other interest bearing liabilities	1,568	1,584
Carrying Value [Member]
Financial assets:
Cash and due from banks	12,928	11,868
Interest bearing deposits with banks	598	19,753
Interest bearing time deposits with banks	735	735
Securities	336,548	287,506
Restricted investment in bank stock	2,116	3,423
Loans, net of allowance for loan losses	414,795	418,567
Interest rate swaps, assets	541
Accrued interest receivable	1,814	2,105
Financial liabilities:
Non-interest bearing deposits	182,022	168,115
Interest bearing deposits	526,425	454,751
Securities sold under agreements to repurchase	4,227	4,750
Short-term borrowings		20,000
Federal Reserve Bank ("FRB") advances		27,955
Long-term debt	20,000	35,000
Interest rate swaps		57
Other interest bearing liabilities	1,568	1,584
Accrued interest payable	252	448
Off-balance sheet financial instruments:
Commitments to extend credit	0	0
Letters of credit	0	0
Fair Value [Member]
Financial assets:
Cash and due from banks	12,928	11,868
Interest bearing deposits with banks	598	19,753
Interest bearing time deposits with banks	735	735
Securities	336,548	287,506
Loans, net of allowance for loan losses	414,984	424,791
Interest rate swaps, assets	541
Accrued interest receivable	1,814	2,105
Financial liabilities:
Non-interest bearing deposits	182,022	168,115
Interest bearing deposits	528,952	459,224
Short-term borrowings		20,002
Federal Reserve Bank ("FRB") advances		27,955
Long-term debt	20,520	37,365
Interest rate swaps		57
Other interest bearing liabilities	1,568	1,585
Accrued interest payable	252	448
Off-balance sheet financial instruments:
Commitments to extend credit	0	0
Letters of credit	$ 0	$ 0