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Troubled Debt Restructurings (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) contract	Dec. 31, 2015 USD ($) contract	Dec. 31, 2014 contract
Financing Receivable, Modifications [Line Items]
Number of troubled debt restructured loans	26	23
Total troubled debt restructured loans | $	$ 7,300	$ 7,500
Number of contracts in nonaccrual status	6	2
Total of loans in nonaccrual status | $	$ 1,553	$ 500
Number of contracts	5	3	5
Loan is considered payment default	30 days
Residential Single Family [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts modified by changing the amortization period		2
Number of contracts modified by reducing the payment amount	2		1
Number of contracts modified by changing payments to interest only	1
Number of contracts modified by changing the amortization period and lowering the interest rate	1	1
Commercial Real Estate Non-Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts	1
Number of contracts modified by changing the amortization period and lowering the interest rate	1
Commercial - Non Real Estate Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts			2
Number of contracts modified by reducing the payment amount			2
Construction And Farmland Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts			1
Number of contracts modified by forgiving a portion of the loan			1
Residential Equity Lines [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts			1
Number of contracts modified by changing payments to interest only			1

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

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