Fair Value (Details 3) (USD $) In Thousands, unless otherwise specified										6 Months Ended						6 Months Ended						6 Months Ended						6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2012 Non-recurring basis Level 3	Dec. 31, 2011 Non-recurring basis Level 3	Jun. 30, 2012 Non-recurring basis Level 3 Commercial and residential	Dec. 31, 2011 Non-recurring basis Level 3 Commercial and residential	Jun. 30, 2012 Non-recurring basis Level 3 Land and construction	Dec. 31, 2011 Non-recurring basis Level 3 Land and construction	Jun. 30, 2012 Non-recurring basis Level 3 Land and construction Market Approach	Jun. 30, 2012 Non-recurring basis Level 3 Land and construction Market Approach Minimum	Jun. 30, 2012 Non-recurring basis Level 3 Land and construction Market Approach Maximum	Jun. 30, 2012 Non-recurring basis Level 3 Land and construction Market Approach Weighted average	Jun. 30, 2012 Non-recurring basis Level 3 Commercial	Dec. 31, 2011 Non-recurring basis Level 3 Commercial	Jun. 30, 2012 Non-recurring basis Level 3 Commercial Market Approach	Jun. 30, 2012 Non-recurring basis Level 3 Commercial Market Approach Minimum	Jun. 30, 2012 Non-recurring basis Level 3 Commercial Market Approach Maximum	Jun. 30, 2012 Non-recurring basis Level 3 Commercial Market Approach Weighted average	Jun. 30, 2012 Non-recurring basis Level 3 Real estate Commercial and residential	Dec. 31, 2011 Non-recurring basis Level 3 Real estate Commercial and residential	Jun. 30, 2012 Non-recurring basis Level 3 Real estate Commercial and residential Market Approach	Jun. 30, 2012 Non-recurring basis Level 3 Real estate Commercial and residential Market Approach Minimum	Jun. 30, 2012 Non-recurring basis Level 3 Real estate Commercial and residential Market Approach Maximum	Jun. 30, 2012 Non-recurring basis Level 3 Real estate Commercial and residential Market Approach Weighted average	Jun. 30, 2012 Non-recurring basis Level 3 Real estate Land and construction	Dec. 31, 2011 Non-recurring basis Level 3 Real estate Land and construction	Jun. 30, 2012 Non-recurring basis Level 3 Real estate Land and construction Market Approach	Jun. 30, 2012 Non-recurring basis Level 3 Real estate Land and construction Market Approach Minimum	Jun. 30, 2012 Non-recurring basis Level 3 Real estate Land and construction Market Approach Maximum	Jun. 30, 2012 Non-recurring basis Level 3 Real estate Land and construction Market Approach Weighted average
Quantitative information about level 3 fair value measurements for financial instruments measured at fair value on a non-recurring basis
Impaired loans- held-for-investment, Fair Value	$ 15,533	$ 21,518	$ 8,131	$ 9,952									$ 5,069	$ 6,526	$ 4,873				$ 906	$ 1,794	$ 906				$ 1,697	$ 1,590	$ 1,697
Foreclosed assets, Fair Value	$ 3,098	$ 2,312	$ 3,098	$ 2,312	$ 183	$ 156	$ 2,915	$ 2,156	$ 2,915
Discount adjustment for differences between comparable sales (as a percent)										0.00%	23.00%	6.00%				2.00%	34.00%	17.00%				2.00%	7.00%	5.00%				1.00%	36.00%	12.00%