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Loans and Allowance for Loan and Lease Losses (Allowance For Loan Losses And Recorded Investment In Financing Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended						12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance			$ 7,606			$ 7,183	$ 7,606	$ 7,183	$ 6,168
Charge-offs							(528)	(497)	(1,107)
Recoveries							819	595	252
Provisions	$ 275	$ 100	125	$ 100	$ 100	125	500	325	1,870
Allowance for Loan Losses, Ending balance	8,397			7,606			8,397	7,606	7,183
Allowance for loan losses: Ending balance: individually evaluated for impairment	742			529			742	529	858
Allowance for loan losses: Ending balance: collectively evaluated for impairment	7,655			7,077			7,655	7,077	6,325
Loans receivables, Ending balance	1,624,067			910,404			1,624,067	910,404	813,924
Loans receivables: Ending balance: individually evaluated for impairment	8,463			10,788			8,463	10,788	5,222
Loans Receivable: Ending balance: collectively evaluated for impairment	1,612,801			898,755			1,612,801	898,755	807,471
Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans receivables, Ending balance	2,803			861			2,803	861	1,231
Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance			423			379	423	379	317
Charge-offs							(185)	(20)	(25)
Recoveries							1	5
Provisions							289	59	87
Allowance for Loan Losses, Ending balance	528			423			528	423	379
Allowance for loan losses: Ending balance: individually evaluated for impairment									1
Allowance for loan losses: Ending balance: collectively evaluated for impairment	528			423			528	423	378
Loans receivables, Ending balance	70,096			41,893			70,096	41,893	37,608
Loans receivables: Ending balance: individually evaluated for impairment	30			260			30	260	140
Loans Receivable: Ending balance: collectively evaluated for impairment	70,062			41,633			70,062	41,633	37,468
Home Equity [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans receivables, Ending balance	4						4
Commercial Portfolio [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans receivables, Ending balance	28						28
Commercial Portfolio [Member] | Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance			1,795			1,580	1,795	1,580	1,393
Charge-offs							(142)	(25)	(820)
Recoveries							1	26	4
Provisions							737	214	1,003
Allowance for Loan Losses, Ending balance	2,391			1,795			2,391	1,795	1,580
Allowance for loan losses: Ending balance: individually evaluated for impairment	500			136			500	136	6
Allowance for loan losses: Ending balance: collectively evaluated for impairment	1,891			1,659			1,891	1,659	1,574
Loans receivables, Ending balance	286,518			188,033			286,518	188,033	172,518
Loans receivables: Ending balance: individually evaluated for impairment	4,527			4,434			4,527	4,434	60
Loans Receivable: Ending balance: collectively evaluated for impairment	281,963			183,599			281,963	183,599	172,458
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	28						28
Commercial Portfolio [Member] | Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance			4,435			4,323	4,435	4,323	3,552
Charge-offs							(64)	(322)	(216)
Recoveries							808	553	211
Provisions							(476)	(119)	776
Allowance for Loan Losses, Ending balance	4,703			4,435			4,703	4,435	4,323
Allowance for loan losses: Ending balance: individually evaluated for impairment	204			293			204	293	711
Allowance for loan losses: Ending balance: collectively evaluated for impairment	4,499			4,142			4,499	4,142	3,612
Loans receivables, Ending balance	861,369			515,012			861,369	515,012	446,524
Loans receivables: Ending balance: individually evaluated for impairment	2,728			4,847			2,728	4,847	3,246
Loans Receivable: Ending balance: collectively evaluated for impairment	857,078			509,610			857,078	509,610	442,436
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	1,563			555			1,563	555	842
Commercial Portfolio [Member] | Commercial Real Estate - Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance			178			144	178	144	153
Charge-offs							(40)
Provisions							(63)	34	(9)
Allowance for Loan Losses, Ending balance	75			178			75	178	144
Allowance for loan losses: Ending balance: individually evaluated for impairment	38			100			38	100	72
Allowance for loan losses: Ending balance: collectively evaluated for impairment	37			78			37	78	72
Loans receivables, Ending balance	142,173			62,336			142,173	62,336	54,376
Loans receivables: Ending balance: individually evaluated for impairment	367			487			367	487	860
Loans Receivable: Ending balance: collectively evaluated for impairment	141,806			61,849			141,806	61,849	53,516
Commercial Portfolio [Member] | Lease Financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance						1		1	1
Provisions								(1)
Allowance for Loan Losses, Ending balance									1
Allowance for loan losses: Ending balance: collectively evaluated for impairment									1
Loans receivables, Ending balance	53			229			53	229	425
Loans Receivable: Ending balance: collectively evaluated for impairment	53			229			53	229	425
Residential Portfolio [Member] | Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance			428			541	428	541	534
Charge-offs							(60)	(102)	(4)
Recoveries								4	26
Provisions							85	(15)	(15)
Allowance for Loan Losses, Ending balance	453			428			453	428	541
Allowance for loan losses: Ending balance: individually evaluated for impairment									68
Allowance for loan losses: Ending balance: collectively evaluated for impairment	453			428			453	428	473
Loans receivables, Ending balance	253,543			99,033			253,543	99,033	99,457
Loans receivables: Ending balance: individually evaluated for impairment	811			760			811	760	916
Loans Receivable: Ending balance: collectively evaluated for impairment	251,524			97,967			251,524	97,967	98,152
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	1,208			306			1,208	306	389
Consumer Portfolio [Member] | Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance			3			3	3	3	12
Charge-offs							(37)	(28)	(42)
Recoveries							9	7	11
Provisions							32	21	22
Allowance for Loan Losses, Ending balance	7			3			7	3	3
Allowance for loan losses: Ending balance: collectively evaluated for impairment	7			3			7	3	3
Loans receivables, Ending balance	10,315			3,868			10,315	3,868	3,016
Loans Receivable: Ending balance: collectively evaluated for impairment	10,315			3,868			10,315	3,868	3,016
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for loan and lease losses, Beginning balance			$ 344			$ 212	344	212	206
Provisions							(104)	132	6
Allowance for Loan Losses, Ending balance	240			344			240	344	212
Allowance for loan losses: Ending balance: collectively evaluated for impairment	$ 240			$ 344			$ 240	$ 344	$ 212

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- Definition

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

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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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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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