Investment (Gross Unrealized Losses and Fair Values of Securities) (Details) $ in Thousands	Mar. 31, 2023 USD ($) security	Dec. 31, 2022 USD ($) security
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 5,036	$ 20,035
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 260	$ 1,540
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security	3	17
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 115,435	$ 104,269
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 24,029	$ 22,404
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments \| security	38	27
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 5,672	$ 122,949
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 218	$ 26,211
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security	3	48
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	$ 178,180	$ 59,340
Held-to-Maturity Securities, Continuous Unrealized Loss Position, More than 12 Months, Unrealized Losses	$ 29,170	$ 7,315
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments \| security	56	13
US Treasury Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	$ 36,023	$ 35,611
Held-to-Maturity Securities, Continuous Unrealized Loss Position, More than 12 Months, Unrealized Losses	$ 1,245	$ 1,593
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments \| security	4	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		$ 4,598
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses		$ 402
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security		1
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 9,653	$ 4,865
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 1,383	$ 1,180
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		$ 38,883
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses		$ 9,617
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security		7
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	$ 56,828	$ 15,591
Held-to-Maturity Securities, Continuous Unrealized Loss Position, More than 12 Months, Unrealized Losses	$ 10,975	$ 3,644
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments \| security	9	2
Residential mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 37,281	$ 37,401
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 6,943	$ 7,651
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments \| security	5	5
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 3,122	$ 16,893
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 81	$ 1,425
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security	2	29
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	$ 21,374	$ 8,138
Held-to-Maturity Securities, Continuous Unrealized Loss Position, More than 12 Months, Unrealized Losses	$ 2,958	$ 2,078
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments \| security	33	7
Commercial mortgage-backed agencies [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 1,796	$ 4,044
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 102	$ 455
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security	1	3
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 28,698	$ 26,688
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 6,555	$ 6,206
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments \| security	8	6
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 17,821
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses		$ 4,568
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security		3
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	$ 17,069
Held-to-Maturity Securities, Continuous Unrealized Loss Position, More than 12 Months, Unrealized Losses	$ 4,566
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments \| security	2
Collateralized mortgage obligations [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 1,600
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses		$ 210
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security		5
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 20,977	$ 19,444
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 4,345	$ 4,574
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments \| security	10	5
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 2,550	$ 47,083
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 137	$ 10,001
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security	1	8
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	$ 44,549
Held-to-Maturity Securities, Continuous Unrealized Loss Position, More than 12 Months, Unrealized Losses	$ 8,892
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments \| security	7
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	$ 3,240	$ 8,906
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 158	$ 360
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security	2	7
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 3,882
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 86
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments \| security	2
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		$ 2,269
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses		$ 600
Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number Of Investments \| security		1
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	$ 2,337
Held-to-Maturity Securities, Continuous Unrealized Loss Position, More than 12 Months, Unrealized Losses	$ 534
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, 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		$ 887
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses		$ 113
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments \| security		1
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 830
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 170
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments \| security	1
Collateralized debt obligations [Member]
Schedule of Investments [Line Items]
Available-for-Sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	$ 14,114	$ 15,871
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 4,547	$ 2,793
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments \| security	9	9

Held To Maturity Securities In Unrealized Loss Positions 12 Months Or Longer Number Of Positions

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