Fair Value (Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets:
Securities	$ 726,352	$ 709,786
Loans Held-for-Sale	6,856	15,273
Derivative Assets	1,548	1,291
Mortgage Servicing Rights	593	611
Derivative Liabilities	1,579	1,238
Obligations of State and Political Subdivisions
Assets:
Securities	257,343	247,519
MBS/CMO - Residential
Assets:
Securities	468,656	461,914
Equity Securities
Assets:
Securities	353	353
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Securities	0	0
Loans Held-for-Sale	0	0
Derivative Assets	0	0
Mortgage Servicing Rights	0	0
Derivative Liabilities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Obligations of State and Political Subdivisions
Assets:
Securities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| MBS/CMO - Residential
Assets:
Securities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Equity Securities
Assets:
Securities	0	0
Significant Other Observable Inputs (Level 2)
Assets:
Securities	719,552	702,138
Loans Held-for-Sale	6,856	15,273
Derivative Assets	1,548	1,291
Mortgage Servicing Rights	593	611
Derivative Liabilities	1,579	1,238
Significant Other Observable Inputs (Level 2) \| Obligations of State and Political Subdivisions
Assets:
Securities	250,896	240,224
Significant Other Observable Inputs (Level 2) \| MBS/CMO - Residential
Assets:
Securities	468,656	461,914
Significant Other Observable Inputs (Level 2) \| Equity Securities
Assets:
Securities	0	0
Significant Unobservable Inputs (Level 3)
Assets:
Securities	6,800	7,648
Loans Held-for-Sale	0	0
Derivative Assets	0	0
Mortgage Servicing Rights	0	0
Derivative Liabilities	0	0
Significant Unobservable Inputs (Level 3) \| Obligations of State and Political Subdivisions
Assets:
Securities	6,447	7,295
Significant Unobservable Inputs (Level 3) \| MBS/CMO - Residential
Assets:
Securities	0	0
Significant Unobservable Inputs (Level 3) \| Equity Securities
Assets:
Securities	$ 353	$ 353

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Fair value as of the balance sheet date of all derivative assets not designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
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Fair value as of the balance sheet date of all derivative liabilities not designated as hedging instruments.

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- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Trading Securities
-URI http://asc.fasb.org/extlink&oid=6526789

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-Name Accounting Standards Codification
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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

+ References

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