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Fair Value Measurements, Measured On A Recurring And Nonrecurring Basis (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Fair value assets and liabilities measured on non-recurring basis [Abstract] |  |
Impaired loans, estimated selling cost | $ 351,000 | $ 356,000
Recurring [Member] |  |
Assets [Abstract] |  |
Equity securities | 2,118,000 | 1,931,000
Available for sale securities [Abstract] |  |
U.S. Agency Securities | 79,709,000 | 81,416,000
U.S. Treasury securities | 40,362,000 | 28,043,000
Obligations of state and political subdivisions | 102,345,000 | 102,972,000
Corporate obligations | 6,983,000 | 6,509,000
Mortgage-backed securities in government sponsored entities | 92,568,000 | 76,249,000
Other Assets [Abstract] |  |
Derivative instruments | 4,651,000 | 1,111,000
Liabilities [Abstract] |  |
Derivative instruments | (2,615,000) | (1,122,000)
Recurring [Member] | Level I [Member] |  |
Assets [Abstract] |  |
Equity securities | 2,118,000 | 1,931,000
Available for sale securities [Abstract] |  |
U.S. Agency Securities | 0 | 0
U.S. Treasury securities | 40,362,000 | 28,043,000
Obligations of state and political subdivisions | 0 | 0
Corporate obligations | 0 | 0
Mortgage-backed securities in government sponsored entities | 0 | 0
Other Assets [Abstract] |  |
Derivative instruments | 0 | 0
Liabilities [Abstract] |  |
Derivative instruments | 0 | 0
Recurring [Member] | Level II [Member] |  |
Assets [Abstract] |  |
Equity securities | 0 | 0
Available for sale securities [Abstract] |  |
U.S. Agency Securities | 79,709,000 | 81,416,000
U.S. Treasury securities | 0 | 0
Obligations of state and political subdivisions | 102,345,000 | 102,972,000
Corporate obligations | 6,983,000 | 6,509,000
Mortgage-backed securities in government sponsored entities | 92,568,000 | 76,249,000
Other Assets [Abstract] |  |
Derivative instruments | 4,651,000 | 1,111,000
Liabilities [Abstract] |  |
Derivative instruments | (2,615,000) | (1,122,000)
Recurring [Member] | Level III [Member] |  |
Assets [Abstract] |  |
Equity securities | 0 | 0
Available for sale securities [Abstract] |  |
U.S. Agency Securities | 0 | 0
U.S. Treasury securities | 0 | 0
Obligations of state and political subdivisions | 0 | 0
Corporate obligations | 0 | 0
Mortgage-backed securities in government sponsored entities | 0 | 0
Other Assets [Abstract] |  |
Derivative instruments | 0 | 0
Liabilities [Abstract] |  |
Derivative instruments | 0 | 0
Nonrecurring [Member] |  |
Fair value assets and liabilities measured on non-recurring basis [Abstract] |  |
Impaired Loans | 3,264,000 | 3,243,000
Other real estate owned | 1,527,000 | 1,700,000
Nonrecurring [Member] | Level I [Member] |  |
Fair value assets and liabilities measured on non-recurring basis [Abstract] |  |
Impaired Loans | 0 | 0
Other real estate owned | 0 | 0
Nonrecurring [Member] | Level II [Member] |  |
Fair value assets and liabilities measured on non-recurring basis [Abstract] |  |
Impaired Loans | 0 | 0
Other real estate owned | 0 | 0
Nonrecurring [Member] | Level III [Member] |  |
Fair value assets and liabilities measured on non-recurring basis [Abstract] |  |
Impaired Loans | 3,264,000 | 3,243,000
Other real estate owned | $ 1,527,000 | $ 1,700,000

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- Definition Carrying amount as of the balance sheet date of all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance; includes real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5162-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4437-111522 + Details
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