Loans And The Allowance For Loan Losses (Data, At Class Level, Of Credit Quality Indicators Of Certain Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2017		Dec. 31, 2016	Jun. 30, 2016
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	$ 975,438		$ 941,729	$ 852,535
Total Real Estate Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	766,167		742,941
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	573,856	[1]	555,625	499,399	[1]
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Corporate Credit Exposure—By Credit Rating 1-3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	449,094		454,755
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Corporate Credit Exposure—By Credit Rating 4 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	98,834		80,196
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Corporate Credit Exposure—By Credit Rating 5 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	12,187		12,506
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Corporate Credit Exposure—By Credit Rating 6 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	13,741		8,168
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Corporate Credit Exposure—By Credit Rating 7 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	96,640		93,240
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Construction [Member] | Corporate Credit Exposure—By Credit Rating 1-3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	75,063		82,520
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Construction [Member] | Corporate Credit Exposure—By Credit Rating 4 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	17,398		6,541
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Construction [Member] | Corporate Credit Exposure—By Credit Rating 6 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	4,179		4,179
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Construction [Member] | Corporate Credit Exposure—By Credit Rating 7 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	477,216		462,385
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Mortgages [Member] | Corporate Credit Exposure—By Credit Rating 1-3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	374,031		372,235
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Mortgages [Member] | Corporate Credit Exposure—By Credit Rating 4 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	81,436		73,655
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Mortgages [Member] | Corporate Credit Exposure—By Credit Rating 5 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	12,187		12,506
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Mortgages [Member] | Corporate Credit Exposure—By Credit Rating 6 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	9,562		3,989
Commercial Real Estate Mortgages [Member] | Total Real Estate Loans [Member] | Mortgages [Member] | Corporate Credit Exposure—By Credit Rating 7 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	207,769		197,371	$ 179,210
Commercial And Industrial [Member] | Corporate Credit Exposure—By Credit Rating 1-3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	139,594		121,414
Commercial And Industrial [Member] | Corporate Credit Exposure—By Credit Rating 4 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	55,030		59,117
Commercial And Industrial [Member] | Corporate Credit Exposure—By Credit Rating 5 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	7,136		12,623
Commercial And Industrial [Member] | Corporate Credit Exposure—By Credit Rating 6 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	5,254		3,404
Commercial And Industrial [Member] | Corporate Credit Exposure—By Credit Rating 7 [Member]
Financing Receivable, Recorded Investment [Line Items]
Total gross loans	$ 755		$ 813

[1] Includes construction loans