Loans (Details 9) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) Loans Numbers	Dec. 31, 2015 USD ($) Loans Numbers
Defaults on TDRs [Line Items]
Number of Loans | Numbers	16	15
Recorded Balance	$ 1,442	$ 1,266
Commercial Real Estate [Member]
Defaults on TDRs [Line Items]
Number of Loans | Numbers	1	1
Recorded Balance	$ 225	$ 156
Owner Occupied [Member]
Defaults on TDRs [Line Items]
Number of Loans | Loans	1	1
Recorded Balance	$ 225	$ 156
First Deed of Trust [Member]
Defaults on TDRs [Line Items]
Number of Loans | Loans	13	11
Recorded Balance	$ 1,134	$ 889
Consumer Real Estate [Member]
Defaults on TDRs [Line Items]
Number of Loans | Numbers	15	13
Recorded Balance	$ 1,217	$ 983
Commercial and industrial loans (except those secured by real estate) [Member]
Defaults on TDRs [Line Items]
Number of Loans | Loans	0	1
Recorded Balance	$ 0	$ 127
Second Deed of Trust [Member]
Defaults on TDRs [Line Items]
Number of Loans | Loans	2	2
Recorded Balance	$ 83	$ 94