Loans and Allowance for Credit Losses (Rollforward of TDRs) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR beginning balance	$ 7,255	$ 9,193
New TDRs		1,506
Disbursements (Payments)	(472)	(710)
Payoffs	(900)	(2,734)
TDR ending balance	5,883	7,255
TDR, Related Allowance	173	146
Impaired Nonaccrual Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR beginning balance	258	1,692
New TDRs		1,506
Disbursements (Payments)	(42)	(493)
Payoffs		(2,447)
TDR ending balance	216	258
Impaired Nonaccrual Loans [Member] \| Residential Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR beginning balance		1,393
Disbursements (Payments)		(51)
Payoffs		(1,342)
Impaired Nonaccrual Loans [Member] \| Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
New TDRs		1,506
Disbursements (Payments)		(401)
Payoffs		(1,105)
Impaired Nonaccrual Loans [Member] \| Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR beginning balance	258	299
Disbursements (Payments)	(42)	(41)
TDR ending balance	216	258
Impaired Accruing Restructured Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR beginning balance	6,997	7,501
Disbursements (Payments)	(430)	(217)
Payoffs	(900)	(287)
TDR ending balance	5,667	6,997
TDR, Related Allowance	173	146
Impaired Accruing Restructured Loans [Member] \| Residential Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR beginning balance	3,845	4,041
Disbursements (Payments)	(109)	(113)
Payoffs	(900)	(83)
TDR ending balance	2,836	3,845
TDR, Related Allowance	172	135
Impaired Accruing Restructured Loans [Member] \| Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR beginning balance	3,118	3,419
Disbursements (Payments)	(311)	(97)
Payoffs		(204)
TDR ending balance	2,807	3,118
TDR, Related Allowance	1	11
Impaired Accruing Restructured Loans [Member] \| Construction Loans [Member] \| Commercial and Residential Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
TDR beginning balance	34	41
Disbursements (Payments)	(10)	(7)
TDR ending balance	$ 24	$ 34

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