Loans and Allowance for Loan Losses (Details 7) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Transfers from loans to other real estate owned and repossessed assets
Other real estate owned	$ 1,284	$ 3,145
Repossessed assets	295	913
Total	$ 1,579	$ 4,058