Loans (Total Loans And Leases Outstanding) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	$ 464,100	$ 455,603
Less allowance for credit losses	(5,190)	(4,906)	(4,750)	(4,623)
Net loans and leases	458,910	450,697
Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	26,538	25,993
Less allowance for credit losses	(269)	(269)	(347)	(285)
Commercial Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	268,586	257,310
Less allowance for credit losses	(2,398)	(2,300)	(2,166)	(2,010)
Commercial Term [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	81,730	80,819
Less allowance for credit losses	(705)	(709)	(652)	(621)
Commercial Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	30,415	35,534
Less allowance for credit losses	(922)	(881)	(806)	(1,033)
Consumer: Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	51,269	50,192
Less allowance for credit losses	(224)	(189)	(167)	(156)
Consumer: Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	5,562	5,755
Less allowance for credit losses	$ (66)	$ (70)	$ (125)	$ (78)