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Fair Value Unobservable Inputs (Details) - Fair Value, Measurements, Nonrecurring [Member] $ in Thousands	Mar. 31, 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	$ 2,325
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	33.71%
Other Real Estate Owned [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Assets, Fair Value Disclosure	$ 0
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	0.00%
Mortgage Servicing Rights [Member]
Schedule Of Fair Value Significant Unobservable Inputs Used [Line Items]
Assets, Fair Value Disclosure	$ 1,604
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	8.80%
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%

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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