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Loans and Leases (Schedule of Change in Allowance for Loan Losses and the Recorded Investment in Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses: Beginning balance	$ 9,747	$ 9,747	$ 9,747
Charge-offs	(301)	(513)	(1,509)
Recoveries	271	33	424
Provisions	300	255	1,085
Allowance for Loan Losses: Ending balance	10,017	9,522	9,747
Allowance for Loan Losses: Ending balance: individually evaluated for impairment	719		908
Allowance for Loan Losses: Ending balance: collectively evaluated for impairment	9,298		8,839
Loan Receivables: Ending balance	745,124		753,410
Loans Receivable: Ending balance: individually evaluated for impairment	4,642		4,665
Loans Receivable: Ending balance: collectively evaluated for impairment	740,482		748,745
Unearned lease revenue	938		903
Deferred loan costs	3,000		3,000
Commercial And Industrial [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses: Beginning balance	1,484	1,432	1,432
Charge-offs	(64)	(28)	(184)
Recoveries	12	6	32
Provisions	121	(3)	204
Allowance for Loan Losses: Ending balance	1,553	1,407	1,484
Allowance for Loan Losses: Ending balance: individually evaluated for impairment	195		221
Allowance for Loan Losses: Ending balance: collectively evaluated for impairment	1,358		1,263
Loan Receivables: Ending balance	118,140		122,594
Loans Receivable: Ending balance: individually evaluated for impairment	310		336
Loans Receivable: Ending balance: collectively evaluated for impairment	117,830		122,258
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses: Beginning balance	3,933	3,901	3,901
Charge-offs	(163)	(361)	(597)
Recoveries	2	2	317
Provisions	171	485	312
Allowance for Loan Losses: Ending balance	3,943	4,027	3,933
Allowance for Loan Losses: Ending balance: individually evaluated for impairment	312		426
Allowance for Loan Losses: Ending balance: collectively evaluated for impairment	3,631		3,507
Loan Receivables: Ending balance	224,802		235,013
Loans Receivable: Ending balance: individually evaluated for impairment	2,872		2,948
Loans Receivable: Ending balance: collectively evaluated for impairment	221,930		232,065
Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses: Beginning balance	2,013	2,548	2,548
Charge-offs	(43)	(89)	(398)
Recoveries	64	25	67
Provisions	60	(354)	(204)
Allowance for Loan Losses: Ending balance	2,094	2,130	2,013
Allowance for Loan Losses: Ending balance: individually evaluated for impairment	75		87
Allowance for Loan Losses: Ending balance: collectively evaluated for impairment	2,019		1,926
Loan Receivables: Ending balance	207,962		210,869
Loans Receivable: Ending balance: individually evaluated for impairment	494		375
Loans Receivable: Ending balance: collectively evaluated for impairment	207,468		210,494
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses: Beginning balance	2,278	1,844	1,844
Charge-offs	(31)	(35)	(330)
Recoveries	193		8
Provisions	(47)	101	756
Allowance for Loan Losses: Ending balance	2,393	1,910	2,278
Allowance for Loan Losses: Ending balance: individually evaluated for impairment	137		174
Allowance for Loan Losses: Ending balance: collectively evaluated for impairment	2,256		2,104
Loan Receivables: Ending balance	194,220		184,934
Loans Receivable: Ending balance: individually evaluated for impairment	966		1,006
Loans Receivable: Ending balance: collectively evaluated for impairment	193,254		183,928
Unallocated [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for Loan Losses: Beginning balance	39	22	22
Provisions	(5)	26	17
Allowance for Loan Losses: Ending balance	34	$ 48	39
Allowance for Loan Losses: Ending balance: collectively evaluated for impairment	$ 34		$ 39

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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 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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