Loan Quality And Allowance For Loan Losses (Allowance For Loan Losses, By Loan Segment) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	$ 11,966	$ 12,415
Charge-offs	(250)	(187)
Recoveries	14	54
Provision	3,000	399
Allowance, Ending Balance	14,730	12,681
Loans evaluated for allowance individually	11,969		$ 12,176
Loans evaluated for allowance collectively	924,417		922,399
Total Loans	936,386		934,575
Allowance established for loan evaluated collectively	14,730		11,966
Total Allowance	14,730		11,966
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loans	193,972		190,543
Residential Real Estate - Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	184	108
Charge-offs		(3)
Provision	82	47
Allowance, Ending Balance	266	152
Loans evaluated for allowance individually	521		523
Loans evaluated for allowance collectively	14,961		12,800
Total Loans	15,482		13,323
Allowance established for loan evaluated collectively	266		184
Total Allowance	266		184
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	6,022	5,698
Charge-offs		(63)
Recoveries		1
Provision	1,582	270
Allowance, Ending Balance	7,604	5,906
Loans evaluated for allowance individually	10,795		10,994
Loans evaluated for allowance collectively	483,348		483,268
Total Loans	494,143		494,262
Allowance established for loan evaluated collectively	7,604		6,022
Total Allowance	7,604		6,022
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	3,815	4,511
Charge-offs	(220)	(61)
Recoveries	5	42
Provision	886	70
Allowance, Ending Balance	4,486	4,562
Loans evaluated for allowance collectively	226,128		230,007
Total Loans	226,128		230,007
Allowance established for loan evaluated collectively	4,486		3,815
Total Allowance	4,486		3,815
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	84	70
Charge-offs	(30)	(26)
Recoveries	6	10
Provision	38	18
Allowance, Ending Balance	98	72
Loans evaluated for allowance collectively	6,661		6,440
Total Loans	6,661		6,440
Allowance established for loan evaluated collectively	98		84
Total Allowance	98		84
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	1,326	1,404
Provision	209	(34)
Allowance, Ending Balance	1,535	1,370
Allowance established for loan evaluated collectively	1,535		1,326
Total Allowance	1,535		1,326
First Liens [Member] \| Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	416	491
Charge-offs		(33)
Recoveries	3	1
Provision	144	28
Allowance, Ending Balance	563	487
Loans evaluated for allowance individually	653		659
Loans evaluated for allowance collectively	142,653		142,287
Total Loans	143,306		142,946
Allowance established for loan evaluated collectively	563		416
Total Allowance	563		416
Junior Liens & Lines Of Credit [Member] \| Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance, Beginning Balance	119	133
Charge-offs		(1)
Provision	59
Allowance, Ending Balance	178	$ 132
Loans evaluated for allowance collectively	50,666		47,597
Total Loans	50,666		47,597
Allowance established for loan evaluated collectively	178		119
Total Allowance	$ 178		$ 119

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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The balance of financing receivables that were collectively evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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