Loans (Details 8) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) Loans	Dec. 31, 2015 USD ($) Loans
Information about TDRs Identified during the Period [Line Items]
Number of Loans | Loans	55	66
Pre-Modification Recorded Investment	$ 586	$ 87
Post-Modification Recorded Investment	$ 586	$ 87
Home Equity Line of Credit [Member]
Information about TDRs Identified during the Period [Line Items]
Number of Loans | Loans	0	1
Pre-Modification Recorded Investment	$ 0	$ 87
Post-Modification Recorded Investment	$ 0	$ 87
Consumer Real Estate, Secured by 1-4 Family Residential, First Deed of Trust [Member]
Information about TDRs Identified during the Period [Line Items]
Number of Loans | Loans	1	0
Pre-Modification Recorded Investment	$ 234	$ 0
Post-Modification Recorded Investment	$ 234	$ 0
Consumer Real Estate, Secured by 1-4 Family Residential [Member]
Information about TDRs Identified during the Period [Line Items]
Number of Loans | Loans	1	1
Pre-Modification Recorded Investment	$ 234	$ 87
Post-Modification Recorded Investment	$ 234	$ 87
Commercial And Industrial Loans Except Those Secured By Real Estate [Member]
Information about TDRs Identified during the Period [Line Items]
Number of Loans | Loans	3
Pre-Modification Recorded Investment	$ 352
Post-Modification Recorded Investment	$ 352