Loans and Allowance for Loan Losses (Details 6) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Summary of consumer credit exposure
Total loans	$ 482,313	$ 514,392
Residential real estate
Summary of consumer credit exposure
Total loans	69,650	69,845
Consumer | Home equity
Summary of consumer credit exposure
Total loans	24,761	25,076
Consumer | Other
Summary of consumer credit exposure
Total loans	3,211	3,227
Performing | Residential real estate
Summary of consumer credit exposure
Total loans	69,442	69,535
Performing | Consumer | Home equity
Summary of consumer credit exposure
Total loans	24,634	24,956
Performing | Consumer | Other
Summary of consumer credit exposure
Total loans	3,211	3,227
Nonperforming | Residential real estate
Summary of consumer credit exposure
Total loans	208	310
Nonperforming | Consumer | Home equity
Summary of consumer credit exposure
Total loans	$ 127	$ 120