Fair Value Unobservable Inputs (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013
Trust Preferred Securities [Member] | Fair Value, Measurements, Recurring [Member] | Discounted Cash Flow, Credit Spread [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Unobservable Inputs, Weighted Average Of Input Credit Spreads	640
Trust Preferred Securities [Member] | Fair Value, Measurements, Recurring [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Assets, Fair Value Disclosure	660
Impaired Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Appraisal, Appraisal Discount [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Unobservable Input, Weighted Average of Input Percent	12.6
Impaired Loans [Member] | Fair Value, Measurements, Nonrecurring [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Assets, Fair Value Disclosure	4,944
Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Appraisal, Appraisal Discount [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Unobservable Input, Weighted Average of Input Percent	9.6
Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Assets, Fair Value Disclosure	4,810
Mortgage Servicing Rights [Member] | Fair Value, Measurements, Nonrecurring [Member] | Discounted Cash Flow, Prepayment Speed [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Unobservable Input, Weighted Average of Input Percent	18.3
Mortgage Servicing Rights [Member] | Fair Value, Measurements, Nonrecurring [Member] | Discounted Cash Flow, Discount Rate [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Unobservable Input, Weighted Average of Input Percent	11.0
Mortgage Servicing Rights [Member] | Fair Value, Measurements, Nonrecurring [Member] | Carrying (Reported) Amount, Fair Value Disclosure [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Assets, Fair Value Disclosure	1,728