Loans and Allowance for Loan Losses (Details 5) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Summary of credit quality indicators by internally assigned grade
Total loans	$ 395,763	$ 394,254
Commercial
Summary of credit quality indicators by internally assigned grade
Total loans	61,351	84,613
Commercial real estate
Summary of credit quality indicators by internally assigned grade
Total loans	251,149	237,137
Pass | Commercial
Summary of credit quality indicators by internally assigned grade
Total loans	48,841	77,095
Pass | Commercial real estate
Summary of credit quality indicators by internally assigned grade
Total loans	226,491	219,958
Special Mention | Commercial
Summary of credit quality indicators by internally assigned grade
Total loans	9,217	4,216
Special Mention | Commercial real estate
Summary of credit quality indicators by internally assigned grade
Total loans	16,970	7,707
Substandard | Commercial
Summary of credit quality indicators by internally assigned grade
Total loans	3,293	3,302
Substandard | Commercial real estate
Summary of credit quality indicators by internally assigned grade
Total loans	$ 7,688	$ 9,472