Fair Value (Quantitative Information About Recurring Level 3 Fair Value Measurements) (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Collateralized Debt Obligations [Member] | Discounted Cash Flow [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 6,977
Collateralized Debt Obligations [Member] | Maximum [Member] | Discounted Cash Flow [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Collateral default rate 30.00%
Unobservable Inputs, Discount rate 5.00%
Collateralized Debt Obligations [Member] | Minimum [Member] | Discounted Cash Flow [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Collateral default rate 4.00%
Unobservable Inputs, Discount rate 3.00%
Collateralized Debt Obligations [Member] | Weighted Average [Member] | Discounted Cash Flow [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Collateral default rate 8.00%
Unobservable Inputs, Discount rate 3.00%
Collateralized Mortgage Obligations [Member] | Collateral Coverage [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 1,280
Collateralized Mortgage Obligations [Member] | Maximum [Member] | Collateral Coverage [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Probability of loss 40.00%
Unobservable Inputs, Coverage ratio 5.00%
Collateralized Mortgage Obligations [Member] | Minimum [Member] | Collateral Coverage [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Probability of loss 0.00%
Unobservable Inputs, Coverage ratio 5.00%
Collateralized Mortgage Obligations [Member] | Weighted Average [Member] | Collateral Coverage [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Probability of loss 34.00%
Unobservable Inputs, Coverage ratio 5.00%
Impaired [Member] | Closed End [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 1,731
Impaired [Member] | Closed End [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 100.00%
Impaired [Member] | Closed End [Member] | Minimum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 20.00%
Impaired [Member] | Closed End [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 30.00%
Impaired [Member] | Line of Credit [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 1,172
Impaired [Member] | Line of Credit [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 100.00%
Impaired [Member] | Line of Credit [Member] | Minimum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 20.00%
Impaired [Member] | Line of Credit [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 30.00%
Impaired [Member] | Agriculture & AGRE [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 51
Impaired [Member] | Agriculture & AGRE [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 55.00%
Impaired [Member] | Agriculture & AGRE [Member] | Minimum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 10.00%
Impaired [Member] | Agriculture & AGRE [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 12.00%
Impaired [Member] | Construction, Land & Development [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 10,135
Impaired [Member] | Construction, Land & Development [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 55.00%
Impaired [Member] | Construction, Land & Development [Member] | Minimum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 10.00%
Impaired [Member] | Construction, Land & Development [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 14.00%
Impaired [Member] | Owner Occupied [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 8,695
Impaired [Member] | Owner Occupied [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 55.00%
Impaired [Member] | Owner Occupied [Member] | Minimum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 10.00%
Impaired [Member] | Owner Occupied [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 18.00%
Impaired [Member] | Non-owner Occupied [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 7,602
Impaired [Member] | Non-owner Occupied [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 55.00%
Impaired [Member] | Non-owner Occupied [Member] | Minimum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 10.00%
Impaired [Member] | Non-owner Occupied [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 18.00%
Impaired [Member] | Senior Lien [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 6,106
Impaired [Member] | Senior Lien [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 50.00%
Impaired [Member] | Senior Lien [Member] | Minimum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 10.00%
Impaired [Member] | Senior Lien [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 16.00%
Impaired [Member] | Junior Liens & Lines Of Credit [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 217
Impaired [Member] | Junior Liens & Lines Of Credit [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 100.00%
Impaired [Member] | Junior Liens & Lines Of Credit [Member] | Minimum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 20.00%
Impaired [Member] | Junior Liens & Lines Of Credit [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 51.00%
Impaired [Member] | Consumer [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 5
Impaired [Member] | Consumer [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 60.00%
Impaired [Member] | Consumer [Member] | Minimum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 0.00%
Impaired [Member] | Consumer [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 0.00%
Other Real Estate Owned Properties [Member] | Closed End [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value   
Other Real Estate Owned Properties [Member] | Line of Credit [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value   
Other Real Estate Owned Properties [Member] | Agriculture & AGRE [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 261
Other Real Estate Owned Properties [Member] | Agriculture & AGRE [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 10.00%
Other Real Estate Owned Properties [Member] | Agriculture & AGRE [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 10.00%
Other Real Estate Owned Properties [Member] | Construction, Land & Development [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 4,717
Other Real Estate Owned Properties [Member] | Construction, Land & Development [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 55.00%
Other Real Estate Owned Properties [Member] | Construction, Land & Development [Member] | Minimum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 8.00%
Other Real Estate Owned Properties [Member] | Construction, Land & Development [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 25.00%
Other Real Estate Owned Properties [Member] | Owner Occupied [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 2,100
Other Real Estate Owned Properties [Member] | Owner Occupied [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 55.00%
Other Real Estate Owned Properties [Member] | Owner Occupied [Member] | Minimum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 15.00%
Other Real Estate Owned Properties [Member] | Owner Occupied [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 22.00%
Other Real Estate Owned Properties [Member] | Non-owner Occupied [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 3,845
Other Real Estate Owned Properties [Member] | Non-owner Occupied [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 55.00%
Other Real Estate Owned Properties [Member] | Non-owner Occupied [Member] | Minimum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 10.00%
Other Real Estate Owned Properties [Member] | Non-owner Occupied [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 26.00%
Other Real Estate Owned Properties [Member] | Senior Lien [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value 78
Other Real Estate Owned Properties [Member] | Senior Lien [Member] | Maximum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 55.00%
Other Real Estate Owned Properties [Member] | Senior Lien [Member] | Minimum [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 6.00%
Other Real Estate Owned Properties [Member] | Senior Lien [Member] | Weighted Average [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Unobservable Inputs, Adjustment for differences between comparable sales 26.00%
Other Real Estate Owned Properties [Member] | Junior Liens & Lines Of Credit [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value   
Other Real Estate Owned Properties [Member] | Consumer [Member] | Sales Comparison Approach [Member]
 
Fair Value Inputs, Assets, Quantitative Information [Line Items]  
Assets, Fair Value