Loans And Leases (Total Loans And Leases Outstanding) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	$ 389,790		$ 396,498
Less allowance for credit losses	(6,690)	(7,123)	(6,838)	(6,214)	(6,142)	(6,164)
Net loans and leases	383,100		389,660
Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	24,788		25,835
Less allowance for credit losses	(309)	(327)	(306)	(378)	(376)	(383)
Commercial Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	227,467		234,202
Less allowance for credit losses	(3,110)	(3,248)	(3,094)	(2,860)	(2,734)	(3,442)
Commercial Term [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	80,591		81,888
Less allowance for credit losses	(484)	(711)	(506)	(485)	(505)	(474)
Commercial Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	14,330		12,247
Less allowance for credit losses	(2,004)	(1,930)	(1,536)	(1,455)	(1,728)	(1,029)
Lease Financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	4		67
Less allowance for credit losses		(2)	(3)	(5)	(7)	(10)
Consumer: Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	36,200		35,322
Less allowance for credit losses	(181)	(180)	(178)	(176)	(180)	(165)
Consumer: Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	6,410		6,937
Less allowance for credit losses	$ (80)	$ (83)	$ (86)	$ (92)	$ (93)	$ (95)