Investment Securities (Schedule of gross unrealized losses and fair value, securities in continuous unrealized loss position) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months Fair Value	$ 129,675	$ 211,005
Less Than 12 Months Unrealized Losses	(24,239)	(3,539)
12 Months or Longer Fair Value	96,875	16,799
12 Months or Longer Unrealized Losses	(11,455)	(493)
Fair Value	226,550	227,804
Unrealized Losses	(35,694)	(4,032)
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months Fair Value	23,442	49,007
Less Than 12 Months Unrealized Losses	(1,771)	(268)
12 Months or Longer Fair Value	14,198	5,797
12 Months or Longer Unrealized Losses	(787)	(182)
Fair Value	37,640	54,804
Unrealized Losses	(2,558)	(450)
U.S. government agency mortgage-backed securities-residential
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months Fair Value	87,786	139,019
Less Than 12 Months Unrealized Losses	(20,206)	(3,035)
12 Months or Longer Fair Value	62,336	11,002
12 Months or Longer Unrealized Losses	(8,736)	(311)
Fair Value	150,122	150,021
Unrealized Losses	(28,942)	(3,346)
U.S. government agency securities
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months Fair Value	13,163	14,625
Less Than 12 Months Unrealized Losses	(1,593)	(131)
12 Months or Longer Fair Value	9,094
12 Months or Longer Unrealized Losses	(938)
Fair Value	22,257	14,625
Unrealized Losses	(2,531)	(131)
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months Fair Value	1,988	2,469
Less Than 12 Months Unrealized Losses	(265)	(40)
12 Months or Longer Fair Value	2,599
12 Months or Longer Unrealized Losses	(142)
Fair Value	4,587	2,469
Unrealized Losses	(407)	(40)
Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months Fair Value	3,296	5,885
Less Than 12 Months Unrealized Losses	(404)	(65)
12 Months or Longer Fair Value	8,648
12 Months or Longer Unrealized Losses	(852)
Fair Value	11,944	5,885
Unrealized Losses	$ (1,256)	$ (65)

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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Amount of accumulated unrealized loss on 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 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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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 less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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