Loans (Total Loans And Leases Outstanding) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	$ 472,335		$ 455,603
Less allowance for credit losses	(5,108)	$ (5,190)	(4,906)	$ (4,887)	$ (4,750)	$ (4,623)
Net loans and leases	467,227		450,697
Residential mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	26,293		25,993
Less allowance for credit losses	(265)	(269)	(269)	(315)	(347)	(285)
Commercial mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	287,983		257,310
Less allowance for credit losses	(2,562)	(2,398)	(2,300)	(2,131)	(2,146)	(2,010)
Commercial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	79,563		80,819
Less allowance for credit losses	(721)	(705)	(709)	(641)	(652)	(621)
Commercial construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	22,599		35,534
Less allowance for credit losses	(774)	(922)	(881)	(1,019)	(806)	(1,033)
Consumer: Home equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	50,389		50,192
Less allowance for credit losses	(190)	(224)	(189)	(176)	(167)	(156)
Consumer: Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	5,508		5,755
Less allowance for credit losses	$ (65)	$ (66)	$ (70)	$ (98)	$ (125)	$ (78)