Loans and Allowance for Loan Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Composition of the loan portfolio
Total loans	$ 394,254	$ 360,185
Commercial
Composition of the loan portfolio
Total loans	$ 84,613	$ 72,330
Percentage of loans	21.50%	20.10%
Commercial real estate
Composition of the loan portfolio
Total loans	$ 237,137	$ 223,536
Percentage of loans	60.10%	62.10%
Residential real estate
Composition of the loan portfolio
Total loans	$ 45,414	$ 38,875
Percentage of loans	11.50%	10.80%
Consumer | Home equity
Composition of the loan portfolio
Total loans	$ 23,334	$ 21,328
Percentage of loans	5.90%	5.90%
Consumer | Other
Composition of the loan portfolio
Total loans	$ 3,756	$ 4,116
Percentage of loans	1.00%	1.10%