Loans and Allowance for Loan and Lease Losses (Details 5) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Loans accounted for non-accrual basis
Total	$ 8,324	$ 8,576
Commercial Real estate loans [Member]
Loans accounted for non-accrual basis
Total	713
Residential Real estate loans [Member]
Loans accounted for non-accrual basis
Total	4,139	4,500
Construction Real estate loans [Member]
Loans accounted for non-accrual basis
Total	2,404	3,432
Commercial loans and leases [Member]
Loans accounted for non-accrual basis
Total	1,061	644
Municipal loans [Member]
Loans accounted for non-accrual basis
Total
Consumer loans [Member]
Loans accounted for non-accrual basis
Total	$ 7