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Securities Continuous Unrealized Loss (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 59,849 | $ 67,601
Available-for-sale Securities Continuous Unrealized Loss Position Less Than 12 Months Accumulated Loss | 242 | 204
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 | 26,470
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss | 0 | 164
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 59,849 | 94,071
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Losses | 242 | 368
US Government and Government Agencies and Authorities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 15,416 | 24,734
Available-for-sale Securities Continuous Unrealized Loss Position Less Than 12 Months Accumulated Loss | 98 | 97
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 | 4,993
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss | 0 | 1
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 15,416 | 29,727
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Losses | 98 | 98
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 41,488 | 40,126
Available-for-sale Securities Continuous Unrealized Loss Position Less Than 12 Months Accumulated Loss | 133 | 98
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 | 21,477
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss | 0 | 163
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 41,488 | 61,603
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Losses | 133 | 261
US States and Political Subdivisions Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 2,945 | 2,741
Available-for-sale Securities Continuous Unrealized Loss Position Less Than 12 Months Accumulated Loss | 11 | 9
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 | 0
Available-for-sale Securities Continuous Unrealized Loss Position 12 Months Or Longer Accumulated Loss | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 2,945 | 2,741
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Losses | $ 11 | $ 9

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- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer. + References No definition available. + Details
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- Definition Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale in a continuous loss position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27337-111563 + Details
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