Loans (Nonaccrual Loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	$ 12,983	$ 13,197
Accruing loans 90 days or more past due	0	0
Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	0	0
Commercial & Industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	0	0
Total Commercial
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	0	0
Residential Real Estate
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	11,748	11,981
Home Equity
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	1,147	1,128
Other
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	88	88
Total Consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	$ 1,235	$ 1,216