Loans (Impaired Loans Interest Income Recognized) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	$ 17,124	$ 33,165	$ 18,680	$ 33,628
Interest Income Recognized on Impaired Loans	170	264	360	502
Commercial Real Estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	0	9,549	2,039	9,664
Interest Income Recognized on Impaired Loans	0	26	0	52
Commercial & Industrial
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	5,983	6,864	5,738	6,914
Interest Income Recognized on Impaired Loans	73	76	139	152
Total Commercial
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	5,983	16,413	7,777	16,578
Interest Income Recognized on Impaired Loans	73	102	139	204
Residential Real Estate
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	10,017	15,915	9,934	16,076
Interest Income Recognized on Impaired Loans	85	150	197	272
Home Equity
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	1,036	697	853	832
Interest Income Recognized on Impaired Loans	10	10	19	20
Other
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	88	140	116	142
Interest Income Recognized on Impaired Loans	2	2	5	6
Total Consumer
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	1,124	837	969	974
Interest Income Recognized on Impaired Loans	$ 12	$ 12	$ 24	$ 26