Loans (Nonaccrual and Past Due Loans) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans	$ 11,803	$ 13,638
Accruing Loans 90 or More Days Past Due	3	185
Commercial Real Estate, Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans	0	0
Accruing Loans 90 or More Days Past Due	0	0
Commercial Real Estate, Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans	7,947	9,831
Accruing Loans 90 or More Days Past Due	0	0
Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans	7,947	9,831
Accruing Loans 90 or More Days Past Due	0	0
Commercial and Industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans	327	627
Accruing Loans 90 or More Days Past Due	0	181
Residential Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans	3,442	3,136
Accruing Loans 90 or More Days Past Due	0	0
Home Equity Lines of Credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans	78	24
Accruing Loans 90 or More Days Past Due	0	0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual Loans	9	20
Accruing Loans 90 or More Days Past Due	$ 3	$ 4