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Securities - Continuous Unrealized Loss Position - Additional information (Details) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2021 USD ($) security | Dec. 31, 2020 USD ($) | Mar. 31, 2020 USD ($)
Schedule Of Available For Sale Securities |  |  |
Securities held to maturity, fair value | $ | $ 272 | $ 274 | $ 300
Securities of state and local municipalities - tax exempt |  |  |
Schedule Of Available For Sale Securities |  |  |
Securities held to maturity, fair value | $ | $ 272 | $ 274 |
Corporate bonds | BB |  |  |
Schedule Of Available For Sale Securities |  |  |
Number of investment securities | 1 |  |
Corporate bonds | BBB+ |  |  |
Schedule Of Available For Sale Securities |  |  |
Number of investment securities | 1 |  |
Corporate bonds | No rating |  |  |
Schedule Of Available For Sale Securities |  |  |
Number of investment securities | 9 |  |

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- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563 + Details
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