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Fair Value Measurements (Assets Measured At Fair Value On A Recurring And Non-Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available for sale	$ 427,545	$ 445,677
Collateral Dependent Impaired Loans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	1,894
Loan Servicing Rights [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	1,030
Other Real Estate Owned [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	41
Measured On A Recurring Basis [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	427,788	446,308
Liabilities at fair value	(227)	(171)
Measured On A Recurring Basis [Member] | Derivative Instruments [Member] | Interest Rate Products [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value	3,587	2,006
Measured On A Recurring Basis [Member] | Derivative Instruments [Member] | Credit Contract [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value	30	24
Measured On A Recurring Basis [Member] | Derivative Instruments [Member] | Mortgage Banking [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value	23	27
Measured On A Recurring Basis [Member] | U.S. Government Agency And Government Sponsored Enterprises [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available for sale	144,376	152,028
Measured On A Recurring Basis [Member] | Mortgage-Backed Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available for sale	283,169	293,649
Measured On A Recurring Basis [Member] | Derivative Instruments, Assets [Member] | Cash Flow Hedging [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	243	631
Measured On A Recurring Basis [Member] | Derivative Instruments, Assets [Member] | Interest Rate Products [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	3,261	1,803
Measured On A Recurring Basis [Member] | Derivative Instruments, Assets [Member] | Credit Contract [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	20
Measured On A Recurring Basis [Member] | Derivative Instruments, Assets [Member] | Mortgage Banking [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	132	83
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Liabilities at fair value
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member] | Derivative Instruments [Member] | Interest Rate Products [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member] | Derivative Instruments [Member] | Credit Contract [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member] | Derivative Instruments [Member] | Mortgage Banking [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member] | U.S. Government Agency And Government Sponsored Enterprises [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available for sale
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member] | Mortgage-Backed Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available for sale
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member] | Derivative Instruments, Assets [Member] | Cash Flow Hedging [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member] | Derivative Instruments, Assets [Member] | Interest Rate Products [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member] | Derivative Instruments, Assets [Member] | Credit Contract [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member] | Derivative Instruments, Assets [Member] | Mortgage Banking [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	427,788	446,308
Liabilities at fair value	(227)	(171)
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member] | Derivative Instruments [Member] | Interest Rate Products [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value	3,587	2,006
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member] | Derivative Instruments [Member] | Credit Contract [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value	30	24
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member] | Derivative Instruments [Member] | Mortgage Banking [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value	23	27
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member] | U.S. Government Agency And Government Sponsored Enterprises [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available for sale	144,376	152,028
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member] | Mortgage-Backed Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available for sale	283,169	293,649
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member] | Derivative Instruments, Assets [Member] | Cash Flow Hedging [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	243	631
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member] | Derivative Instruments, Assets [Member] | Interest Rate Products [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	3,261	1,803
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member] | Derivative Instruments, Assets [Member] | Credit Contract [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	20
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member] | Derivative Instruments, Assets [Member] | Mortgage Banking [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	132	83
Measured On A Recurring Basis [Member] | Level 3 Inputs [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Liabilities at fair value
Measured On A Recurring Basis [Member] | Level 3 Inputs [Member] | Derivative Instruments [Member] | Interest Rate Products [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value
Measured On A Recurring Basis [Member] | Level 3 Inputs [Member] | Derivative Instruments [Member] | Credit Contract [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value
Measured On A Recurring Basis [Member] | Level 3 Inputs [Member] | Derivative Instruments [Member] | Mortgage Banking [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities at fair value
Measured On A Recurring Basis [Member] | Level 3 Inputs [Member] | U.S. Government Agency And Government Sponsored Enterprises [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available for sale
Measured On A Recurring Basis [Member] | Level 3 Inputs [Member] | Mortgage-Backed Securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities available for sale
Measured On A Recurring Basis [Member] | Level 3 Inputs [Member] | Derivative Instruments, Assets [Member] | Cash Flow Hedging [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Recurring Basis [Member] | Level 3 Inputs [Member] | Derivative Instruments, Assets [Member] | Interest Rate Products [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Recurring Basis [Member] | Level 3 Inputs [Member] | Derivative Instruments, Assets [Member] | Credit Contract [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Recurring Basis [Member] | Level 3 Inputs [Member] | Derivative Instruments, Assets [Member] | Mortgage Banking [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Nonrecurring Basis [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	5,034	6,992
Liabilities at fair value	0		$ 0
Measured On A Nonrecurring Basis [Member] | Loans Held For Sale [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	2,069	2,868
Measured On A Nonrecurring Basis [Member] | Collateral Dependent Impaired Loans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	1,894	2,872
Measured On A Nonrecurring Basis [Member] | Loan Servicing Rights [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	1,030	1,022
Measured On A Nonrecurring Basis [Member] | Other Real Estate Owned [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	41	230
Measured On A Nonrecurring Basis [Member] | Level 1 Inputs [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Nonrecurring Basis [Member] | Level 1 Inputs [Member] | Loans Held For Sale [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Nonrecurring Basis [Member] | Level 1 Inputs [Member] | Collateral Dependent Impaired Loans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Nonrecurring Basis [Member] | Level 1 Inputs [Member] | Loan Servicing Rights [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Nonrecurring Basis [Member] | Level 1 Inputs [Member] | Other Real Estate Owned [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Nonrecurring Basis [Member] | Level 2 Inputs [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	2,069	2,868
Measured On A Nonrecurring Basis [Member] | Level 2 Inputs [Member] | Loans Held For Sale [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	2,069	2,868
Measured On A Nonrecurring Basis [Member] | Level 2 Inputs [Member] | Collateral Dependent Impaired Loans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Nonrecurring Basis [Member] | Level 2 Inputs [Member] | Loan Servicing Rights [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Nonrecurring Basis [Member] | Level 2 Inputs [Member] | Other Real Estate Owned [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Nonrecurring Basis [Member] | Level 3 Inputs [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	2,965	4,124
Measured On A Nonrecurring Basis [Member] | Level 3 Inputs [Member] | Loans Held For Sale [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value
Measured On A Nonrecurring Basis [Member] | Level 3 Inputs [Member] | Collateral Dependent Impaired Loans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	1,894	2,872
Measured On A Nonrecurring Basis [Member] | Level 3 Inputs [Member] | Loan Servicing Rights [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	1,030	1,022
Measured On A Nonrecurring Basis [Member] | Level 3 Inputs [Member] | Other Real Estate Owned [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets at fair value	$ 41	$ 230

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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.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Fair value of financial and nonfinancial obligations.

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