Loans and Allowance for Loan Losses (Impaired Loans By Class) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Unpaid Principal Balance
Total	$ 5,737	$ 6,052
Recorded Investment
Total	5,276	5,473
Related Allowance
With no related allowance:	115	39
Average Recorded Investment
Total	5,303	5,626
Interest Income Recognized
Total	37	113
Consumer Installment
Unpaid Principal Balance
Total	15	17
Recorded Investment
Total	14	16
Average Recorded Investment
Total	15	19
Interest Income Recognized
Total		1
Commercial Portfolio Segment
Unpaid Principal Balance
Total	188	143
Recorded Investment
Total	176	109
Related Allowance
With no related allowance:	77
Average Recorded Investment
Total	181	166
Interest Income Recognized
Total	2	11
Commercial Real Estate
Unpaid Principal Balance
Total	2,422	2,687
Recorded Investment
Total	2,114	2,301
Average Recorded Investment
Total	2,117	2,328
Interest Income Recognized
Total	14
Construction And Farmland Financing Receivable
Unpaid Principal Balance
Total	268	271
Recorded Investment
Total	250	257
Average Recorded Investment
Total	251	267
Interest Income Recognized
Total		9
Residential
Unpaid Principal Balance
Total	2,844	2,934
Recorded Investment
Total	2,722	2,790
Related Allowance
With no related allowance:	38	39
Average Recorded Investment
Total	2,739	2,846
Interest Income Recognized
Total	21	92
With No Related Allowance
Unpaid Principal Balance
With no related allowance:	4,856	5,241
Recorded Investment
With no related allowance:	4,420	4,686
Average Recorded Investment
With no related allowance:	4,443	4,824
Interest Income Recognized
With no related allowance:	29	83
With No Related Allowance | Commercial - Non Real Estate: - Commercial Real Estate:
Unpaid Principal Balance
With no related allowance:	111	143
Recorded Investment
With no related allowance:	99	109
Average Recorded Investment
With no related allowance:	104	166
Interest Income Recognized
With no related allowance:	1	11
With No Related Allowance | Commercial Real Estate Owner Occupied
Unpaid Principal Balance
With no related allowance:	142	148
Recorded Investment
With no related allowance:	117	124
Average Recorded Investment
With no related allowance:	119	142
With No Related Allowance | Commercial Real Estate Non-Owner Occupied
Unpaid Principal Balance
With no related allowance:	2,280	2,539
Recorded Investment
With no related allowance:	1,997	2,177
Average Recorded Investment
With no related allowance:	1,998	2,186
Interest Income Recognized
With no related allowance:	14
With No Related Allowance | Construction And Farmland Commercial
Unpaid Principal Balance
With no related allowance:	268	271
Recorded Investment
With no related allowance:	250	257
Average Recorded Investment
With no related allowance:	251	267
Interest Income Recognized
With no related allowance:		9
With No Related Allowance | Consumer Installment
Unpaid Principal Balance
With no related allowance:	15	17
Recorded Investment
With no related allowance:	14	16
Average Recorded Investment
With no related allowance:	15	19
Interest Income Recognized
With no related allowance:		1
With No Related Allowance | Residential Equity Lines
Unpaid Principal Balance
With no related allowance:	34	35
Recorded Investment
With no related allowance:	28	29
Average Recorded Investment
With no related allowance:	29	32
With No Related Allowance | Residential Single Family
Unpaid Principal Balance
With no related allowance:	2,006	2,088
Recorded Investment
With no related allowance:	1,915	1,974
Average Recorded Investment
With no related allowance:	1,927	2,012
Interest Income Recognized
With no related allowance:	14	62
With An Allowance Recorded
Unpaid Principal Balance
With an allowance recorded:	881	811
Recorded Investment
With an allowance recorded:	856	787
Related Allowance
With no related allowance:	115	39
Average Recorded Investment
With an allowance recorded:	860	802
Interest Income Recognized
With an allowance recorded:	8	30
With An Allowance Recorded | Commercial - Non Real Estate: - Commercial Real Estate:
Unpaid Principal Balance
With an allowance recorded:	77
Recorded Investment
With an allowance recorded:	77
Related Allowance
With no related allowance:	77
Average Recorded Investment
With an allowance recorded:	77
Interest Income Recognized
With an allowance recorded:	1
With An Allowance Recorded | Residential Single Family
Unpaid Principal Balance
With an allowance recorded:	804	811
Recorded Investment
With an allowance recorded:	779	787
Related Allowance
With no related allowance:	38	39
Average Recorded Investment
With an allowance recorded:	783	802
Interest Income Recognized
With an allowance recorded:	$ 7	$ 30