Loans (Nonaccrual Loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	$ 17,918	$ 17,408
Accruing loans 90 days or more past due	0	0
Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	450	603
Commercial & Industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	290	657
Total Commercial
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	740	1,260
Residential Real Estate
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	15,423	14,297
Home Equity
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	1,667	1,763
Other
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	88	88
Total Consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	$ 1,755	$ 1,851