Nature of Business and Significant Accounting Policies (Adoption of new accounting standard 2023) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jan. 01, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Nature Of Business And Significant Accounting Policies [Line Items]
Change in Consolidated Statement of Condition		$ 1,579	$ 2,702	$ 4,423	$ 7,740
Effective income tax		343	$ 595	958	$ 1,551
Retained earnings		$ 99,456		$ 99,456		$ 96,624
Accounting Standards Update 2016-13 | Adoption of CECL Standard
Nature Of Business And Significant Accounting Policies [Line Items]
Change in Consolidated Statement of Condition	$ 801
Effective income tax	168
Retained earnings	633
Accounting Standards Update 2016-13 | Adoption of CECL Standard | Allowance for credit losses (loans)
Nature Of Business And Significant Accounting Policies [Line Items]
Change in Consolidated Statement of Condition	580
Effective income tax	122
Retained earnings	458
Accounting Standards Update 2016-13 | Adoption of CECL Standard | ACL (Unfunded credit commitments)
Nature Of Business And Significant Accounting Policies [Line Items]
Change in Consolidated Statement of Condition	221
Effective income tax	46
Retained earnings	$ 175