Fair Value Measurements (Fair Value Inputs, Assets, Quantitative Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014		Dec. 31, 2013
Impaired Loan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 6,000		$ 6,535
Fair Value Measurements, Valuation Techniques	Appraisal of collateral (1)	[1]	Appraisal of collateral (1)	[1]
Fair Value Disclosure, Unbservable Input Range	Appraisal adjustments (2)	[2]	Appraisal adjustments (2)	[2]
Foreclosed Assets Held for Sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	778		465
Fair Value Measurements, Valuation Techniques	Appraisal of collateral (1), (3)	[1],[3]	Appraisal of collateral (1), (3)	[1],[3]
Fair Value Disclosure, Unbservable Input Range	Appraisal adjustments (2)	[2]	Appraisal adjustments (2)	[2]
Mortgage Servicing Rights [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$ 226		$ 223
Fair Value Measurements, Valuation Techniques	Multiple of annual service fee		Multiple of annual service fee
Fair Value Disclosure, Unbservable Input Range	Estimated prepayment speed based on rate and term		Estimated prepayment speed based on rate and term
Minimum [Member] | Impaired Loan [Member] | Unobservable Input Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	10.00%		10.00%
Minimum [Member] | Foreclosed Assets Held for Sale [Member] | Unobservable Input Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	15.00%		15.00%
Minimum [Member] | Mortgage Servicing Rights [Member] | Unobservable Input Estimated Prepayment Speed [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Prepayment Rate	240.00%		240.00%
Maximum [Member] | Impaired Loan [Member] | Unobservable Input Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	95.00%		95.00%
Maximum [Member] | Foreclosed Assets Held for Sale [Member] | Unobservable Input Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	40.00%		40.00%
Maximum [Member] | Mortgage Servicing Rights [Member] | Unobservable Input Estimated Prepayment Speed [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Prepayment Rate	400.00%		400.00%
Weighted Average [Member] | Impaired Loan [Member] | Unobservable Input Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	28.00%		25.00%
Weighted Average [Member] | Foreclosed Assets Held for Sale [Member] | Unobservable Input Appraisal Adjustments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	24.00%		24.00%
Weighted Average [Member] | Mortgage Servicing Rights [Member] | Unobservable Input Estimated Prepayment Speed [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Prepayment Rate	352.00%		349.00%

[1] Fair value is generally determined through independent appraisals of the underlying collateral, which generally includes various level 3 inputs which are not observable.

[2] Appraisals may be adjusted downward by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal. Higher downward adjustments are caused by negative changes to the collateral or conditions in the real estate market, actual offers or sales contracts received, or age of the appraisal.

[3] Includes qualitative adjustments by management and estimated liquidation expenses.