Loans, Nonaccrual Loans Segregated by Class of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Nonaccrual loans segregated by class of loans [Abstract]
Total nonaccrual loans	$ 12,902	$ 11,867
Commercial [Member] | Construction [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Total nonaccrual loans	510	639
Commercial [Member] | Real Estate [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Total nonaccrual loans	5,655	4,537
Commercial [Member] | Other [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Total nonaccrual loans	1,001	797
Residential [Member] | Construction [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Total nonaccrual loans	280	22
Residential [Member] | Real Estate [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Total nonaccrual loans	4,776	5,395
Residential [Member] | Home Equity [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Total nonaccrual loans	$ 680	$ 477