Fair Value Measurements - Level 3 Inputs (Details) (USD $) In Thousands, unless otherwise specified											6 Months Ended
	Jun. 30, 2012 Level 3	Jun. 30, 2012 Fair Value	Dec. 31, 2011 Fair Value	Jun. 30, 2012 Nonrecurring Impaired loans Level 3	Dec. 31, 2011 Nonrecurring Impaired loans Level 3	Jun. 30, 2012 Nonrecurring Impaired loans Fair Value	Dec. 31, 2011 Nonrecurring Impaired loans Fair Value	Jun. 30, 2012 Commercial and industrial Nonrecurring Impaired loans Level 3	Jun. 30, 2012 Real estate construction and other land loans Nonrecurring Impaired loans Level 3	Jun. 30, 2012 Equity loans and lines of credit Nonrecurring Impaired loans Level 3	Jun. 30, 2012 Minimum Real estate construction and other land loans Nonrecurring Impaired loans	Jun. 30, 2012 Maximum Real estate construction and other land loans Nonrecurring Impaired loans	Jun. 30, 2012 Weighted Average Commercial and industrial Nonrecurring Impaired loans	Jun. 30, 2012 Weighted Average Real estate construction and other land loans Nonrecurring Impaired loans	Jun. 30, 2012 Weighted Average Equity loans and lines of credit Nonrecurring Impaired loans
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans receivable	$ 404,978	$ 404,978	$ 418,084	$ 9,800	$ 15,508	$ 9,800	$ 15,508	$ 923	$ 8,671	$ 206
Adjustments for lack of sales activity													(40.00%)
Adjustments for absorption rate, discount rate and lot value appreciation/depreciation											0.00%	(30.00%)		(25.00%)
Fair Value Inputs, Discount for Adjustments in Home Values and Selling Costs															(15.00%)