Loans (Interest Income on Nonaccrual Loans) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest income on nonaccrual loans	$ 90	$ 191
Commercial Real Estate
Interest income on nonaccrual loans	0	0
Commercial & Industrial
Interest income on nonaccrual loans	1	0
Total Commercial
Interest income on nonaccrual loans	1	0
Residential Real Estate
Interest income on nonaccrual loans	65	168
Home Equity
Interest income on nonaccrual loans	24	23
Other
Interest income on nonaccrual loans	0	0
Total Consumer
Interest income on nonaccrual loans	$ 24	$ 23