Loans and Allowance for Loan and Lease Losses (Allowance And Recorded Investment In Financing Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	$ 11,067	$ 8,771	$ 9,515	$ 8,397
Charge-offs	(8)	(66)	(78)	(370)
Recoveries	11	46	33	134
Provisions (credits)	1,100	565	2,700	1,155
Allowance for Loan Losses, Ending balance	12,170	9,316	12,170	9,316
Allowance for loan losses: Ending balance: individually evaluated for impairment	182	336	182	336	$ 166
Allowance for loan losses: Ending balance: collectively evaluated for impairment	11,988	8,980	11,988	8,980	9,349
Loans receivables, Ending balance	2,521,827	1,710,434	2,521,827	1,710,434	1,762,756
Loans receivables: Ending balance: individually evaluated for impairment	11,598	3,271	11,598	3,271	10,083
Loans Receivable: Ending balance: collectively evaluated for impairment	2,508,461	1,705,017	2,508,461	1,705,017	1,750,865
Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans receivables, Ending balance	1,768	2,146	1,768	2,146	1,808
Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	517	482	442	528
Recoveries		1	1	2
Provisions (credits)	14	13	88	(34)
Allowance for Loan Losses, Ending balance	531	496	531	496
Allowance for loan losses: Ending balance: collectively evaluated for impairment	531	496	531	496	442
Loans receivables, Ending balance	70,400	69,240	70,400	69,240	68,271
Loans receivables: Ending balance: individually evaluated for impairment	2,386	26	2,386	26	25
Loans Receivable: Ending balance: collectively evaluated for impairment	68,014	69,210	68,014	69,210	68,245
Home Equity [Member] \| Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans receivables, Ending balance		4		4	1
Commercial Portfolio [Member] \| Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	2,786	2,448	2,341	2,391
Charge-offs		(12)	(45)	(217)
Recoveries		1	2	44
Provisions (credits)	138	6	626	225
Allowance for Loan Losses, Ending balance	2,924	2,443	2,924	2,443
Allowance for loan losses: Ending balance: individually evaluated for impairment	41		41
Allowance for loan losses: Ending balance: collectively evaluated for impairment	2,883	2,443	2,883	2,443	2,341
Loans receivables, Ending balance	968,875	320,400	968,875	320,400	339,147
Loans receivables: Ending balance: individually evaluated for impairment	912		912		890
Loans Receivable: Ending balance: collectively evaluated for impairment	967,963	320,395	967,963	320,395	338,254
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		5		5	3
Commercial Portfolio [Member] \| Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	7,241	5,312	6,259	4,703
Charge-offs		(42)		(53)
Recoveries		41	1	74
Provisions (credits)	529	544	1,510	1,131
Allowance for Loan Losses, Ending balance	7,770	5,855	7,770	5,855
Allowance for loan losses: Ending balance: individually evaluated for impairment	141	336	141	336	166
Allowance for loan losses: Ending balance: collectively evaluated for impairment	7,629	5,519	7,629	5,519	6,093
Loans receivables, Ending balance	1,021,418	892,060	1,021,418	892,060	929,138
Loans receivables: Ending balance: individually evaluated for impairment	7,434	2,324	7,434	2,324	8,311
Loans Receivable: Ending balance: collectively evaluated for impairment	1,012,558	888,093	1,012,558	888,093	919,404
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	1,426	1,643	1,426	1,643	1,423
Commercial Portfolio [Member] \| Commercial Real Estate - Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	65	45	51	75
Charge-offs			(7)	(40)
Recoveries			2
Provisions (credits)	(4)	1	15	11
Allowance for Loan Losses, Ending balance	61	46	61	46
Allowance for loan losses: Ending balance: collectively evaluated for impairment	61	46	61	46	51
Loans receivables, Ending balance	238,208	177,151	238,208	177,151	181,690
Loans receivables: Ending balance: individually evaluated for impairment	32	40	32	40	40
Loans Receivable: Ending balance: collectively evaluated for impairment	238,176	177,111	238,176	177,111	181,650
Residential Portfolio [Member] \| Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	427	476	417	453
Charge-offs	(4)	(3)	(4)	(3)
Recoveries		2	3	2
Provisions (credits)	47	(7)	54	16
Allowance for Loan Losses, Ending balance	470	468	470	468
Allowance for loan losses: Ending balance: collectively evaluated for impairment	470	468	470	468	417
Loans receivables, Ending balance	215,589	243,729	215,589	243,729	236,724
Loans receivables: Ending balance: individually evaluated for impairment	834	881	834	881	817
Loans Receivable: Ending balance: collectively evaluated for impairment	214,413	242,354	214,413	242,354	235,526
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	342	494	342	494	381
Consumer Portfolio [Member] \| Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	2	7	2	7
Charge-offs	(4)	(9)	(22)	(57)
Recoveries	11	1	24	12
Provisions (credits)	(7)	6	(2)	43
Allowance for Loan Losses, Ending balance	2	5	2	5
Allowance for loan losses: Ending balance: collectively evaluated for impairment	2	5	2	5	2
Loans receivables, Ending balance	7,337	7,854	7,337	7,854	7,786
Loans Receivable: Ending balance: collectively evaluated for impairment	7,337	7,854	7,337	7,854	7,786
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance	29	1	3	240
Provisions (credits)	383	2	409	(237)
Allowance for Loan Losses, Ending balance	412	3	412	3
Allowance for loan losses: Ending balance: collectively evaluated for impairment	$ 412	$ 3	$ 412	$ 3	$ 3

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

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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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