Available for Sale Securities (Schedule of gross unrealized losses and fair value, securities in continuous unrealized loss position) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months Fair Value	$ 211,005	$ 31,512
Less Than 12 Months Unrealized Losses	(3,539)	(313)
12 Months or Longer Fair Value	16,799	293
12 Months or Longer Unrealized Losses	(493)	(8)
Fair Value	227,804	31,805
Unrealized Losses	(4,032)	(321)
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months Fair Value	49,007
Less Than 12 Months Unrealized Losses	(268)
12 Months or Longer Fair Value	5,797
12 Months or Longer Unrealized Losses	(182)
Fair Value	54,804
Unrealized Losses	(450)
U.S. government agency mortgage-backed securities-residential
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months Fair Value	139,019	30,243
Less Than 12 Months Unrealized Losses	(3,035)	(269)
12 Months or Longer Fair Value	11,002	293
12 Months or Longer Unrealized Losses	(311)	(8)
Fair Value	150,021	30,536
Unrealized Losses	(3,346)	(277)
U.S. government agency securities
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months Fair Value	14,625
Less Than 12 Months Unrealized Losses	(131)
Fair Value	14,625
Unrealized Losses	(131)
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months Fair Value	2,469
Less Than 12 Months Unrealized Losses	(40)
Fair Value	2,469
Unrealized Losses	(40)
Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months Fair Value	5,885	747
Less Than 12 Months Unrealized Losses	(65)	(3)
Fair Value	5,885	747
Unrealized Losses	$ (65)	(3)
Other
Debt Securities, Available-for-sale [Line Items]
Less Than 12 Months Fair Value		522
Less Than 12 Months Unrealized Losses		(41)
Fair Value		522
Unrealized Losses		$ (41)