Fair Value Measurements - Schedule Of Asset Impairment Or Valuation Adjustment Recognized At Fair Value On A Nonrecurring Basis (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	$ 1,229	$ 923
Nonrecurring asset, (gain) loss	(131)	(123)
Loans measured for impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	806	187
Nonrecurring asset, (gain) loss	(75)	(11)
Loans measured for impairment | Income Approach Valuation Technique [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	50.00%
Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	423	736
Nonrecurring asset, (gain) loss	(56)	(112)
Other real estate owned | Market Approach Valuation Technique [Member] | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount for Lack of Marketability	10.00%
Other real estate owned | Market Approach Valuation Technique [Member] | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount for Lack of Marketability	25.00%
Mortgage servicing rights | Income Approach Valuation Technique [Member] | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	9.25%
Fair Value Inputs, Prepayment Rate	10.00%
Mortgage servicing rights | Income Approach Valuation Technique [Member] | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Inputs, Discount Rate	10.00%
Fair Value Inputs, Prepayment Rate	25.80%
Interest rate lock commitments | Income Approach Valuation Technique [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Input, Pull Through Rate	93.60%
Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Level 1 inputs: | Loans measured for impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Level 1 inputs: | Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Level 2 inputs: | Loans measured for impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Level 2 inputs: | Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	1,229	923
Level 3 inputs: | Loans measured for impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	806	187
Level 3 inputs: | Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	$ 423	$ 736