Loans (Nonaccrual Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	$ 14,902	$ 11,707
Accruing loans 90 days or more past due	0	0
Current Payment Status [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual loans current on payment	5,100	3,100
Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	684	925
Commercial & Industrial
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	0	0
Total Commercial
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	684	925
Residential Real Estate
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	12,531	9,346
Home Equity
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	1,599	1,436
Other Consumer [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	88	0
Total Consumer
Financing Receivable, Past Due [Line Items]
Nonaccrual loans	$ 1,687	$ 1,436