Commitments and Contingencies (ACL on Unfunded Commitments Rollforward) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	$ 1,740,000	$ 2,390,000	$ 1,940,000	$ 2,290,000
Provision	(100,000)	(400,000)	(300,000)	(300,000)
Ending balance	1,640,000	1,990,000	1,640,000	1,990,000
Commercial real estate
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	906,000	1,483,000	1,091,000	1,236,000
Provision	(76,000)	(387,000)	(261,000)	(140,000)
Ending balance	830,000	1,096,000	830,000	1,096,000
Commercial & industrial
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	799,000	877,000	822,000	988,000
Provision	(22,000)	(9,000)	(45,000)	(120,000)
Ending balance	777,000	868,000	777,000	868,000
Total commercial
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	1,705,000	2,360,000	1,913,000	2,224,000
Provision	(98,000)	(396,000)	(306,000)	(260,000)
Ending balance	1,607,000	1,964,000	1,607,000	1,964,000
Residential real estate
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	24,000	15,000	15,000	50,000
Provision	(2,000)	(1,000)	7,000	(36,000)
Ending balance	22,000	14,000	22,000	14,000
Home equity
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	0	0	0	0
Provision	0	0	0	0
Ending balance	0	0	0	0
Other
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	11,000	15,000	12,000	16,000
Provision	0	(3,000)	(1,000)	(4,000)
Ending balance	11,000	12,000	11,000	12,000
Total consumer
Off-Balance Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance	11,000	15,000	12,000	16,000
Provision	0	(3,000)	(1,000)	(4,000)
Ending balance	$ 11,000	$ 12,000	$ 11,000	$ 12,000