Commitments and Contingencies (ACL on Unfunded Commitments Rollforward) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Jan. 01, 2020
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		$ 293
Adoption of Topic 326	[1]		$ 1,483
Provision		263
Ending balance		2,039
Commercial Real Estate
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		136
Adoption of Topic 326	[1]		817
Provision		179
Ending balance		1,132
Commercial & Industrial
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		144
Adoption of Topic 326	[1]		626
Provision		77
Ending balance		847
Total Commercial
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		280
Adoption of Topic 326	[1]		1,443
Provision		256
Ending balance		1,979
Residential Real Estate
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		6
Adoption of Topic 326	[1]		34
Provision		2
Ending balance		42
Home Equity
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		0
Adoption of Topic 326	[1]		0
Provision		0
Ending balance		0
Other
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		7
Adoption of Topic 326	[1]		6
Provision		5
Ending balance		18
Total Consumer
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		7
Adoption of Topic 326	[1]		$ 6
Provision		5
Ending balance		$ 18

[1] Adoption of the CECL accounting standard effective January 1, 2020.