Loans (Interest Income on Nonaccrual Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Interest income on nonaccrual loans	$ 140	$ 81	$ 332	$ 392
Commercial Real Estate
Interest income on nonaccrual loans	0	0	0	0
Commercial & Industrial
Interest income on nonaccrual loans	0	0	0	0
Total Commercial
Interest income on nonaccrual loans	0	0	0	0
Residential Real Estate
Interest income on nonaccrual loans	131	70	288	341
Home Equity
Interest income on nonaccrual loans	9	11	44	51
Other
Interest income on nonaccrual loans	0	0	0	0
Total Consumer
Interest income on nonaccrual loans	$ 9	$ 11	$ 44	$ 51