Investments (Gross Unrealized Losses and Fair Values of Securities) (Details) $ in Thousands	Sep. 30, 2022 USD ($) security	Dec. 31, 2021 USD ($) security
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 68,789	$ 112,629
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 9,711	$ 1,821
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security	32	16
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 58,554	$ 111,881
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 14,160	$ 7,208
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments \| security	15	19
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 178,660	$ 7,395
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 31,277	$ 291
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security	58	6
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 6,730	$ 2,782
Held-to-Maturity Securities, Continuous Unrealized Loss Position, More than 12 Months, Unrealized Losses	$ 1,928	$ 145
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security	3	1
US Treasury Securities [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 35,413
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 1,727
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security	4
U.S. government agencies [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 8,145	$ 23,577
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 907	$ 122
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security	2	3
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 1,302	$ 33,972
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 698	$ 2,377
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments \| security	1	6
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 54,811
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 12,853
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security	9
Residential mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 15,945	$ 29,507
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 3,065	$ 257
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security	2	3
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 21,788	$ 19,154
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 5,100	$ 712
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments \| security	3	2
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 18,794	$ 7,395
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 1,992	$ 291
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security	33	6
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 6,730	$ 2,782
Held-to-Maturity Securities, Continuous Unrealized Loss Position, More than 12 Months, Unrealized Losses	$ 1,928	$ 145
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security	3	1
Commercial mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 13,915	$ 32,177
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 2,182	$ 787
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security	6	4
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 17,697	$ 5,211
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 3,973	$ 214
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments \| security	4	1
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 18,640
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 4,378
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security	3
Collateralized mortgage obligations [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 13,352	$ 24,322
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 2,860	$ 649
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security	8	5
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 8,349	$ 43,076
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 1,775	$ 2,376
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments \| security	2	5
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 48,840
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 9,622
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security	8
Obligations of states and political subdivisions [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 10,048	$ 3,046
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 465	$ 6
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security	9	1
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 2,162
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 705
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security	1
Corporate Debt Securities [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 920
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 80
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security	1
Collateralized debt obligations [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 6,464
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 152
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security	4
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 9,418	$ 10,468
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 2,614	$ 1,529
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments \| security	5	5

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