Allowance for Credit Losses (Allowance For Credit Losses And Recorded Investments In Loans Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				$ 5,843				$ 5,373	$ 5,843	$ 5,373
Charge-offs									(742)	(1,325)
Recoveries									374	135
Provisions	$ 350	$ 100	$ 375	375	$ 375	$ 375	$ 585	325	1,200	1,660
Ending balance	6,675				5,843				6,675	5,843
Ending balance: individually evaluated for impairment	285				157				285	157
Ending balance: collectively evaluated for impairment	6,390				5,686				6,390	5,686
Ending balance: Loans receivables	934,971				845,897				934,971	845,897
Ending Balance: individually evaluated for impairment	7,308				8,187				7,308	8,187
Ending Balance: collectively evaluated for impairment	927,149				836,767				927,149	836,767
Loans Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance: Loans receivables	514				943				514	943
Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				221				349	221	349
Charge-offs									(178)	(85)
Recoveries									341	16
Provisions									(223)	(59)
Ending balance	161				221				161	221
Ending balance: individually evaluated for impairment	1				3				1	3
Ending balance: collectively evaluated for impairment	160				218				160	218
Ending balance: Loans receivables	99,932				93,959				99,932	93,959
Ending Balance: individually evaluated for impairment	1,535				1,908				1,535	1,908
Ending Balance: collectively evaluated for impairment	98,397				92,044				98,397	92,044
Residential Mortgage [Member] | Loans Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance: Loans receivables					7					7
Commercial Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				2,856				2,531	2,856	2,531
Charge-offs									(249)	(519)
Recoveries									22	51
Provisions									1,018	793
Ending balance	3,647				2,856				3,647	2,856
Ending balance: individually evaluated for impairment	78				19				78	19
Ending balance: collectively evaluated for impairment	3,569				2,837				3,569	2,837
Ending balance: Loans receivables	535,735				484,868				535,735	484,868
Ending Balance: individually evaluated for impairment	2,269				2,828				2,269	2,828
Ending Balance: collectively evaluated for impairment	532,952				481,104				532,952	481,104
Commercial Mortgage [Member] | Loans Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance: Loans receivables	514				936				514	936
Commercial Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				845				709	845	709
Charge-offs									(243)	(683)
Recoveries									4	23
Provisions									456	796
Ending balance	1,062				845				1,062	845
Ending balance: individually evaluated for impairment	203				123				203	123
Ending balance: collectively evaluated for impairment	859				722				859	722
Ending balance: Loans receivables	166,335				129,535				166,335	129,535
Ending Balance: individually evaluated for impairment	2,300				2,080				2,300	2,080
Ending Balance: collectively evaluated for impairment	164,035				127,455				164,035	127,455
Commercial Term [Member] | Loans Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance: Loans receivables
Commercial Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				1,128				969	1,128	969
Charge-offs
Recoveries									5	42
Provisions									(101)	117
Ending balance	1,032				1,128				1,032	1,128
Ending balance: individually evaluated for impairment
Ending balance: collectively evaluated for impairment	1,032				1,128				1,032	1,128
Ending balance: Loans receivables	76,302				75,014				76,302	75,014
Ending Balance: individually evaluated for impairment	476				514				476	514
Ending Balance: collectively evaluated for impairment	75,826				74,500				75,826	74,500
Commercial Construction [Member] | Loans Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance: Loans receivables
Leases Financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance
Charge-offs
Recoveries										1
Provisions										(1)
Ending balance
Ending balance: individually evaluated for impairment
Ending balance: collectively evaluated for impairment
Ending balance: Loans receivables
Ending Balance: individually evaluated for impairment
Ending Balance: collectively evaluated for impairment
Leases Financing [Member] | Loans Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance: Loans receivables
Consumer: Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				183				196	183	196
Charge-offs
Recoveries
Provisions									7	(13)
Ending balance	190				183				190	183
Ending balance: individually evaluated for impairment
Ending balance: collectively evaluated for impairment	190				183				190	183
Ending balance: Loans receivables	51,536				56,844				51,536	56,844
Ending Balance: individually evaluated for impairment	531				612				531	612
Ending Balance: collectively evaluated for impairment	51,005				56,232				51,005	56,232
Consumer: Home Equity [Member] | Loans Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance: Loans receivables
Consumer: Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				63				61	63	61
Charge-offs									(72)	(38)
Recoveries									2	2
Provisions									53	38
Ending balance	46				63				46	63
Ending balance: individually evaluated for impairment	3				12				3	12
Ending balance: collectively evaluated for impairment	43				51				43	51
Ending balance: Loans receivables	5,131				5,677				5,131	5,677
Ending Balance: individually evaluated for impairment	197				245				197	245
Ending Balance: collectively evaluated for impairment	4,934				5,432				4,934	5,432
Consumer: Other [Member] | Loans Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance: Loans receivables
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				$ 547				$ 558	547	558
Charge-offs
Recoveries
Provisions									(10)	(11)
Ending balance	537				547				537	547
Ending balance: individually evaluated for impairment
Ending balance: collectively evaluated for impairment	537				547				537	547
Ending balance: Loans receivables
Ending Balance: individually evaluated for impairment
Ending Balance: collectively evaluated for impairment
Unallocated [Member] | Loans Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance: Loans receivables