Loans and Allowance for Loan Losses (Details 10) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Summary of classes of loans on non-accrual status
Total	$ 3,763	$ 3,566
Commercial Real Estate [Member]
Summary of classes of loans on non-accrual status
Total	2,980	1,470
Commercial [Member]
Summary of classes of loans on non-accrual status
Total	53	70
Residential Real Estate [Member]
Summary of classes of loans on non-accrual status
Total	601	842
Consumer - home equity [Member] | Consumer [Member]
Summary of classes of loans on non-accrual status
Total	73	111
Consumer - other [Member] | Consumer [Member]
Summary of classes of loans on non-accrual status
Total	$ 56	$ 1,073