Commitments and Contingencies (ACL on Unfunded Commitments Rollforward) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Jan. 01, 2020
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	$ 2,333,000	$ 2,039,000	$ 2,382,000	$ 293,000
Adoption of Topic 326					$ 1,483,000
Provision	0	116,000	(49,000)	379,000
Ending balance	2,333,000	2,155,000	2,333,000	2,155,000
Commercial Real Estate
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	953,000	1,132,000	907,000	136,000
Adoption of Topic 326					817,000
Provision	261,000	(245,000)	307,000	(66,000)
Ending balance	1,214,000	887,000	1,214,000	887,000
Commercial & Industrial
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	1,314,000	847,000	1,402,000	144,000
Adoption of Topic 326					626,000
Provision	(269,000)	360,000	(357,000)	437,000
Ending balance	1,045,000	1,207,000	1,045,000	1,207,000
Total Commercial
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	2,267,000	1,979,000	2,309,000	280,000
Adoption of Topic 326					1,443,000
Provision	(8,000)	115,000	(50,000)	371,000
Ending balance	2,259,000	2,094,000	2,259,000	2,094,000
Residential Real Estate
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	46,000	42,000	54,000	6,000
Adoption of Topic 326					34,000
Provision	10,000	0	2,000	2,000
Ending balance	56,000	42,000	56,000	42,000
Home Equity
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	0	0	0	0
Adoption of Topic 326					0
Provision	0	0	0	0
Ending balance	0	0	0	0
Other
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	20,000	18,000	19,000	7,000
Adoption of Topic 326					6,000
Provision	(2,000)	1,000	(1,000)	6,000
Ending balance	18,000	19,000	18,000	19,000
Total Consumer
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	20,000	18,000	19,000	7,000
Adoption of Topic 326					$ 6,000
Provision	(2,000)	1,000	(1,000)	6,000
Ending balance	$ 18,000	$ 19,000	$ 18,000	$ 19,000