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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
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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)

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