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Securities (Narrative) (Details) | 3 Months Ended
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Mar. 31, 2021 USD ($) security | Mar. 31, 2020 USD ($)
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |
Securities evaluated for other than temporary impairment | 36 |
Available-for-sale Securities, Gross Realized Gains | $ |  | $ 431,000
Held-to-maturity securities sales | $ | $ 0 |
Sales of available for sale securities | $ | $ 0 | $ 14,619,000
US Agency Obligations [Member] |  |
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |
Securities evaluated for other than temporary impairment | 16 |
Municipals [Member] |  |
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |
Securities evaluated for other than temporary impairment | 20 |
S&P Rated AAA [Member] |  |
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |
Securities evaluated for other than temporary impairment | 13 |
S&P Rated AA [Member] |  |
Number Of Securities Evaluated For Other Than Temporary Impairment [Line Items] |  |
Securities evaluated for other than temporary impairment | 23 |

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- Definition The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121553693&loc=d3e26853-111562 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585 + Details
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