Derivatives (Narrative) (Details)	12 Months Ended
Dec. 31, 2016 USD ($) loan
Derivative [Line Items]
Number of FHLB borrowings (loans) \| loan	4
Amount of four FHLB borrowings	$ 26,000,000
Recorded hedge ineffectiveness	$ 0
Derivative Effective Date March 15, 2016 [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Swap agreement term	10 years
Fixed interest rate of swap agreement	3.10%
Junior Subordinated Debt [Member]
Derivative [Line Items]
Variable rate junior subordinated debt issued	$ 12,500,000.0
Junior Subordinated Debt [Member] \| LIBOR [Member]
Derivative [Line Items]
Variable rate spread on debt instrument	1.44%

Federal Home Loan Bank, Advances, Outstanding, Less than One Billion Dollars Per Borrower, Number of Borrowers

No definition available.

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- Definition

Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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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

Amount of gain (loss) from the ineffectiveness of the hedge.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(1)
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- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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