Investment (Gross Unrealized Losses and Fair Values of Securities) (Details) $ in Thousands	Sep. 30, 2024 USD ($) security	Dec. 31, 2023 USD ($) security
Schedule of Investments [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 243	$ 1,445
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 2	$ 20
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments | security	1	2
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 89,393	$ 93,525
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 18,769	$ 20,747
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security	35	35
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Fair Value	$ 141,560	$ 178,406
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss	$ 25,062	$ 30,146
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments | security	55	59
US Treasury Securities [Member]
Schedule of Investments [Line Items]
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Fair Value		$ 37,219
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss		$ 243
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments | security		4
US Government Agencies Debt Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 6,239	$ 6,034
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 761	$ 966
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security	2	2
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Fair Value	$ 59,567	$ 57,029
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss	$ 8,662	$ 10,985
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments | security	9	9
Residential Mortgage-Backed Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 19,643	$ 20,563
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 3,559	$ 4,218
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security	3	3
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Fair Value	$ 21,549	$ 22,613
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss	$ 2,455	$ 2,913
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments | security	35	35
Commercial Mortgage-Backed Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 28,353	$ 28,417
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 7,368	$ 7,841
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security	8	8
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Fair Value	$ 16,169	$ 16,052
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss	$ 5,008	$ 5,361
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments | security	2	2
Collateralized Mortgage-Backed Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 15,680	$ 16,356
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 2,853	$ 3,369
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security	9	9
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Fair Value	$ 41,998	$ 43,288
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss	$ 8,334	$ 9,973
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments | security	8	8
US States and Political Subdivisions Debt Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 243	$ 1,445
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Unrealized Losses	$ 2	$ 20
Available-for-Sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Number of Investments | security	1	2
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 3,959	$ 6,668
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 89	$ 169
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security	3	3
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Fair Value	$ 2,277	$ 2,205
Held To Maturity Debt Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss	$ 603	$ 671
Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number Of Investments | security	1	1
Corporate Debt Securities [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 740	$ 778
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 260	$ 222
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security	1	1
Collateralized Debt Obligations [Member]
Schedule of Investments [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	$ 14,779	$ 14,709
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Unrealized Losses	$ 3,879	$ 3,962
Available-for-Sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Investments | security	9	9