Commitments and Contingencies and Derivatives (Schedule of unfunded commitments) (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
	Jan. 01, 2023	Jun. 30, 2023	Jun. 30, 2023
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		$ 241
Provision for credit losses	$ 221	27	$ 47
Ending balance		268	268
Commercial real estate
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		168
Provision for credit losses		32	51
Ending balance		200	200
Commercial and industrial
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		66
Provision for credit losses		(5)	(4)
Ending balance		61	61
Consumer
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Beginning balance		7
Ending balance		7	7
Cumulative effect of change in accounting principle | Accounting Standards Update 2016-13
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Ending balance		221	221
Cumulative effect of change in accounting principle | Accounting Standards Update 2016-13 | Commercial real estate
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Ending balance		149	149
Cumulative effect of change in accounting principle | Accounting Standards Update 2016-13 | Commercial and industrial
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Ending balance		65	65
Cumulative effect of change in accounting principle | Accounting Standards Update 2016-13 | Consumer
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Ending balance		$ 7	$ 7