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Fair Value of Financial Instruments (Details 3) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Dec. 31, 2012
Collateral dependent impaired loans | $ 89 | $ 1,481
Collateral dependent impaired loans Valuation Technique | Market comparable properties | Market comparable properties
Collateral dependent impaired loans Unobservable Inputs | Marketability discount | Marketability discount
Collateral dependent impaired loans Range | 35.00% | 12.00%
Fair Value, Inputs, Level 3 [Member] |  |
Other Securities Fair Value | $ 1,168 | $ 840
Other Securities Valuation Technique | Discounted cash flow | Discounted cash flow
Other Securities Unobservable Inputs | Discount margin Cumulative default % Loss given default % Cumulative prepayment % | Discount margin Cumulative default % Loss given default % Cumulative prepayment %
Minimum [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Other Securities Range - Discount Margin | 6.50% | 7.00%
Other Securities Range - Cumulative Default | 2.70% | 2.20%
Other Securities Range - Loss Given Default | 85.00% | 85.00%
Other Securities Range - Cumulative Prepayment | 0.00% | 0.00%
Maximum [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Other Securities Range - Discount Margin | 14.00% | 14.25%
Other Securities Range - Cumulative Default | 100.00% | 100.00%
Other Securities Range - Loss Given Default | 100.00% | 100.00%
Other Securities Range - Cumulative Prepayment | 100.00% | 100.00%

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