Derivative Financial Instruments (Details) - Interest Rate Swap [Member] - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Short-term Debt [Member] \| Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, notional amount	$ 110,000	$ 110,000
Fair Value Hedge Assets	0	0
Fair Value Hedge Liabilities	4,611	5,071
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	0	0
Commercial Real Estate [Member] \| Fair Value Hedging [Member]
Derivative [Line Items]
Derivative, notional amount	20,507	21,250
Fair Value Hedge Assets	200	94
Fair Value Hedge Liabilities	0	95
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net	$ 0	$ 0

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Fair value of all derivative assets designated as fair value 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
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959

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- Definition

Fair value of all derivative liabilities designated as fair value hedging instruments.

+ References

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- Definition

Amount of gain (loss)recognized in the income statement from the hedging ineffectiveness of a fair value hedge.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986

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