Investment Securities (Details 3) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Marketable Securities [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 16,667	$ 128,982
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	983	6,066
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	257,402	194,279
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	26,461	19,339
Debt Securities, Available-for-Sale, Unrealized Loss Position	274,069	323,261
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss	27,444	25,405
US Treasury Securities [Member]
Marketable Securities [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months		28,827
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		1,032
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	17,550	27,156
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	3,223	3,537
Debt Securities, Available-for-Sale, Unrealized Loss Position	17,550	55,983
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss	3,223	4,569
US Government-sponsored Enterprises Debt Securities [Member]
Marketable Securities [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	2,008	2,074
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	492	426
Debt Securities, Available-for-Sale, Unrealized Loss Position	2,008	2,074
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss	492	426
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member]
Marketable Securities [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months	10,028	81,961
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	815	4,435
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	225,640	159,227
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	21,373	14,679
Debt Securities, Available-for-Sale, Unrealized Loss Position	235,668	241,188
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss	22,188	19,114
Small Business Administration Securities [Member]
Marketable Securities [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months	4,765	16,066
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	47	453
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	8,052	2,592
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	515	177
Debt Securities, Available-for-Sale, Unrealized Loss Position	12,817	18,658
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss	562	630
Corporate And Other Debt Securities [Member]
Marketable Securities [Line Items]
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months	1,874	2,128
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	121	146
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer	4,152	3,230
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	858	520
Debt Securities, Available-for-Sale, Unrealized Loss Position	6,026	5,358
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss	$ 979	$ 666

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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