Fair Value Unobservable Inputs (Details) - Fair Value, Measurements, Nonrecurring [Member] $ in Thousands	Sep. 30, 2018 USD ($)
Impaired Loans [Member] | Fair Value, Disclosure Item Amounts [Domain]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Assets, Fair Value Disclosure	$ 858
Impaired Loans [Member] | Fair Value, Disclosure Item Amounts [Domain] | Appraisal, Appraisal Discount [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Unobservable Input, Weighted Average of Input Percent	52.40%
Other Real Estate Owned [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Assets, Fair Value Disclosure	$ 137
Other Real Estate Owned [Member] | Appraisal, Appraisal Discount [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Unobservable Input, Weighted Average of Input Percent	10.00%
Mortgage Servicing Rights [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Assets, Fair Value Disclosure	$ 1,495
Mortgage Servicing Rights [Member] | Discounted Cash Flow, Prepayment Speed [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Unobservable Input, Weighted Average of Input Percent	9.50%
Mortgage Servicing Rights [Member] | Discounted Cash Flow, Discount Rate [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Unobservable Input, Weighted Average of Input Percent	10.00%