Loans and Allowance for Loan Losses (Details 8) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Commercial Real Estate Mortgage [Member]
Number of Contracts	5
Pre-Modification Outstanding Recorded Investment	$ 5,971
Post-Modification Outstanding Recorded Investment	5,971
Consumer Real Estate Mortgage [Member]
Number of Contracts	1	5
Pre-Modification Outstanding Recorded Investment	65	3,573
Post-Modification Outstanding Recorded Investment	65	3,573
Construction and Land Development [Member]
Number of Contracts	3	2
Pre-Modification Outstanding Recorded Investment	1,178	778
Post-Modification Outstanding Recorded Investment	1,178	778
Commercial and Industrial Loans [Member]
Number of Contracts	5	1
Pre-Modification Outstanding Recorded Investment	2,432	20
Post-Modification Outstanding Recorded Investment	$ 2,432	$ 20