Fair Value (Details 4) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Minimum [Member]
Fair Value Inputs, Discount Rate	11.01%
Maximum [Member]
Fair Value Inputs, Discount Rate	36.28%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Commercial Loan [Member]
Financial Instruments Measured At Fair Value	203
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Commercial Loan [Member] | Minimum [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	0.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Commercial Loan [Member] | Maximum [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	20.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Commercial Loan [Member] | Weighted Average [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	9.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Construction Loans [Member]
Financial Instruments Measured At Fair Value	4,828
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Construction Loans [Member] | Minimum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	21.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Construction Loans [Member] | Minimum [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	12.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Construction Loans [Member] | Maximum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	24.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Construction Loans [Member] | Weighted Average [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	22.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Commercial Real Estate [Member]
Financial Instruments Measured At Fair Value	8,051
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Commercial Real Estate [Member] | Minimum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	12.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Commercial Real Estate [Member] | Maximum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	38.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Commercial Real Estate [Member] | Weighted Average [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	32.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Residential Real Estate [Member]
Financial Instruments Measured At Fair Value	2,670
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Residential Real Estate [Member] | Minimum [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	14.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Residential Real Estate [Member] | Maximum [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	52.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Residential Real Estate [Member] | Weighted Average [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	25.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Consumer Loan [Member]
Financial Instruments Measured At Fair Value	19
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Consumer Loan [Member] | Minimum [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	25.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Construction Loans [Member]
Financial Instruments Measured At Fair Value	1,672
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Construction Loans [Member] | Minimum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	9.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Construction Loans [Member] | Minimum [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	23.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Construction Loans [Member] | Maximum [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	78.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Construction Loans [Member] | Weighted Average [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	53.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Commercial Real Estate [Member]
Financial Instruments Measured At Fair Value	8,264
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Commercial Real Estate [Member] | Minimum [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	14.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Commercial Real Estate [Member] | Minimum [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	0.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Commercial Real Estate [Member] | Maximum [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	90.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Commercial Real Estate [Member] | Weighted Average [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	41.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Residential Real Estate [Member]
Financial Instruments Measured At Fair Value	1,089
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Residential Real Estate [Member] | Minimum [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	0.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Residential Real Estate [Member] | Maximum [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	69.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Residential Real Estate [Member] | Weighted Average [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	28.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Consumer Loan [Member]
Financial Instruments Measured At Fair Value	30
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Foreclosed and Repossessed Assets [Member] | Consumer Loan [Member] | Minimum [Member] | Sales Approach Valuation Technique [Member]
Fair Value Inputs, Discount Rate	0.00%