Loans and Leases (Total Loans and Leases Outstanding) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	$ 396,498	$ 403,684
Less allowance for credit losses	(6,838)	(6,164)	(5,884)
Net loans and leases	389,660	397,520
Residential mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	25,835	26,461
Less allowance for credit losses	(306)	(383)	(454)
Commercial mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	234,202	232,297
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	94,135	101,120
Lease financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	67	191
Less allowance for credit losses	(3)	(10)	(86)
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and leases	42,259	43,615
Less allowance for credit losses	$ (264)	$ (260)	$ (482)