Fair Value of Financial Instruments (Details 2) (Non-recurring, Appraisal of collateral, Level 3 inputs, USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Impaired loans
Quantitative information about assets measured at fair value on a non-recurring basis
Fair Value Estimate	$ 2,762	$ 2,395
Impaired loans | Minimum
Quantitative information about assets measured at fair value on a non-recurring basis
Appraisal adjustments (as a percent)	0.00%	0.00%
Liquidation expenses (as a percent)	(1.50%)	(1.50%)
Impaired loans | Maximum
Quantitative information about assets measured at fair value on a non-recurring basis
Appraisal adjustments (as a percent)	(50.00%)	(50.00%)
Liquidation expenses (as a percent)	8.00%	8.00%
Impaired loans | Weighted Average
Quantitative information about assets measured at fair value on a non-recurring basis
Appraisal adjustments (as a percent)	(25.20%)	(25.20%)
Liquidation expenses (as a percent)	(5.50%)	(5.50%)
Other real estate owned and repossessed assets
Quantitative information about assets measured at fair value on a non-recurring basis
Fair Value Estimate	$ 647	$ 207