Loans and Allowance for Loan Losses (Details 11) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Summary of classes of loans on non-accrual status
Total	$ 2,774	$ 2,973
Commercial real estate
Summary of classes of loans on non-accrual status
Total	2,145	2,336
Commercial
Summary of classes of loans on non-accrual status
Total	57	49
Residential real estate
Summary of classes of loans on non-accrual status
Total	477	489
Consumer - other | Consumer - other
Summary of classes of loans on non-accrual status
Total	24	27
Consumer - home equity | Consumer - other
Summary of classes of loans on non-accrual status
Total	$ 71	$ 72