Loans and Allowance for Loan and Lease Losses (Allowance And Recorded Investment In Financing Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	$ 8,502	$ 7,666	$ 8,397	$ 7,606
Charge-offs	(263)	(267)	(304)	(351)
Recoveries	67	790	88	809
Provisions	465		590	125
Allowance for Loan Losses, Ending balance	8,771	8,189	8,771	8,189
Allowance for loan losses: Ending balance: individually evaluated for impairment	256	574	256	574	$ 742
Allowance for loan losses: Ending balance: collectively evaluated for impairment	8,515	7,615	8,515	7,615	7,655
Loans receivables, Ending balance	1,688,173	1,036,479	1,688,173	1,036,479	1,624,067
Loans receivables: Ending balance: individually evaluated for impairment	3,786	7,688	3,786	7,688	8,463
Loans Receivable: Ending balance: collectively evaluated for impairment	1,681,504	1,026,809	1,681,504	1,026,809	1,612,801
Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans receivables, Ending balance	2,883	1,982	2,883	1,982	2,803
Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	450	391	528	423
Charge-offs		(91)		(167)
Recoveries	1		1
Provisions	31	120	(47)	164
Allowance for Loan Losses, Ending balance	482	420	482	420
Allowance for loan losses: Ending balance: collectively evaluated for impairment	482	420	482	420	528
Loans receivables, Ending balance	70,442	47,815	70,442	47,815	70,096
Loans receivables: Ending balance: individually evaluated for impairment	28	8	28	8	30
Loans Receivable: Ending balance: collectively evaluated for impairment	70,410	47,807	70,410	47,807	70,062
Home Equity [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans receivables, Ending balance	4		4		4
Commercial Portfolio [Member] \| Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	2,443	1,977	2,391	1,795
Charge-offs	(205)	(129)	(205)	(129)
Recoveries	42		43
Provisions	168	272	219	454
Allowance for Loan Losses, Ending balance	2,448	2,120	2,448	2,120
Allowance for loan losses: Ending balance: individually evaluated for impairment	13	282	13	282	500
Allowance for loan losses: Ending balance: collectively evaluated for impairment	2,435	1,838	2,435	1,838	1,891
Loans receivables, Ending balance	301,271	204,724	301,271	204,724	286,518
Loans receivables: Ending balance: individually evaluated for impairment	76	4,324	76	4,324	4,527
Loans Receivable: Ending balance: collectively evaluated for impairment	301,166	200,377	301,166	200,377	281,963
Commercial Portfolio [Member] \| Commercial and Industrial [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans receivables, Ending balance	29	23	29	23	28
Commercial Portfolio [Member] \| Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	5,031	4,653	4,703	4,435
Charge-offs			(12)
Recoveries	15	788	33	805
Provisions	266	(718)	588	(517)
Allowance for Loan Losses, Ending balance	5,312	4,723	5,312	4,723
Allowance for loan losses: Ending balance: individually evaluated for impairment	243	238	243	238	204
Allowance for loan losses: Ending balance: collectively evaluated for impairment	5,069	4,485	5,069	4,485	4,499
Loans receivables, Ending balance	883,317	575,956	883,317	575,956	861,369
Loans receivables: Ending balance: individually evaluated for impairment	2,745	2,261	2,745	2,261	2,728
Loans Receivable: Ending balance: collectively evaluated for impairment	878,956	572,229	878,956	572,229	857,078
Commercial Portfolio [Member] \| Commercial Real Estate [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans receivables, Ending balance	1,616	1,466	1,616	1,466	1,563
Commercial Portfolio [Member] \| Commercial Real Estate - Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	81	183	75	178
Charge-offs	(20)	(40)	(40)	(40)
Provisions	(16)	3	10	8
Allowance for Loan Losses, Ending balance	45	146	45	146
Allowance for loan losses: Ending balance: individually evaluated for impairment		54		54	38
Allowance for loan losses: Ending balance: collectively evaluated for impairment	45	92	45	92	37
Loans receivables, Ending balance	173,900	82,690	173,900	82,690	142,173
Loans receivables: Ending balance: individually evaluated for impairment	40	367	40	367	367
Loans Receivable: Ending balance: collectively evaluated for impairment	173,860	82,323	173,860	82,323	141,806
Commercial Portfolio [Member] \| Lease Financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans receivables, Ending balance		153		153	53
Loans Receivable: Ending balance: collectively evaluated for impairment		153		153	53
Residential Portfolio [Member] \| Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	477	452	453	428
Charge-offs		(3)		(5)
Provisions	(1)	(8)	23	18
Allowance for Loan Losses, Ending balance	476	441	476	441
Allowance for loan losses: Ending balance: collectively evaluated for impairment	476	441	476	441	453
Loans receivables, Ending balance	249,114	120,260	249,114	120,260	253,543
Loans receivables: Ending balance: individually evaluated for impairment	897	728	897	728	811
Loans Receivable: Ending balance: collectively evaluated for impairment	246,983	119,039	246,983	119,039	251,524
Residential Portfolio [Member] \| Financial Asset Acquired with Credit Deterioration [Member] \| Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans receivables, Ending balance	1,234	493	1,234	493	1,208
Consumer Portfolio [Member] \| Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	6	4	7	3
Charge-offs	(38)	(4)	(47)	(10)
Recoveries	9	2	11	4
Provisions	30	2	36	7
Allowance for Loan Losses, Ending balance	7	4	7	4
Allowance for loan losses: Ending balance: collectively evaluated for impairment	7	4	7	4	7
Loans receivables, Ending balance	10,129	4,881	10,129	4,881	10,315
Loans Receivable: Ending balance: collectively evaluated for impairment	10,129	4,881	10,129	4,881	10,315
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	14	6	240	344
Provisions	(13)	329	(239)	(9)
Allowance for Loan Losses, Ending balance	1	335	1	335
Allowance for loan losses: Ending balance: collectively evaluated for impairment	$ 1	$ 335	$ 1	$ 335	$ 240

A valuation allowance for financing receivables that are expected to be uncollectible.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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

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Amount of direct write-downs of financing receivables charged against the allowance.

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

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

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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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Amount of expense related to estimated loss from loan and lease transactions.

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