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Fair Values - Recurring and Nonrecurring (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2020
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | $ 464,089 | $ 365,287 | $ 378,186
Equity Securities | 1,796 | 1,636 | 1,689
Fair Value, Measurements, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 464,089 | 365,287 | 378,186
Equity Securities | 1,796 | 1,636 | 1,689
Total Securities Measured on a Recurring Basis | 465,885 | 366,923 | 379,875
Derivatives, included in other assets | 2,298 | 5,080 | 5,191
Total Measured on a Recurring Basis | 468,183 | 372,003 | 385,066
Derivatives, included in other liabilities | 2,298 | 5,080 | 5,191
Total Measured on a Recurring Basis | 2,298 | 5,080 | 5,191
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 0 | 0 | 0
Equity Securities | 0 | 0 | 0
Total Securities Measured on a Recurring Basis | 0 | 0 | 0
Derivatives, included in other assets | 0 | 0 | 0
Total Measured on a Recurring Basis | 0 | 0 | 0
Derivatives, included in other liabilities | 0 | 0 | 0
Total Measured on a Recurring Basis | 0 | 0 | 0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 464,089 | 365,287 | 378,186
Equity Securities | 1,796 | 1,636 | 1,689
Total Securities Measured on a Recurring Basis | 465,885 | 366,923 | 379,875
Derivatives, included in other assets | 2,298 | 5,080 | 5,191
Total Measured on a Recurring Basis | 468,183 | 372,003 | 385,066
Derivatives, included in other liabilities | 2,298 | 5,080 | 5,191
Total Measured on a Recurring Basis | 2,298 | 5,080 | 5,191
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 0 | 0 | 0
Equity Securities | 0 | 0 | 0
Total Securities Measured on a Recurring Basis | 0 | 0 | 0
Derivatives, included in other assets | 0 | 0 | 0
Total Measured on a Recurring Basis | 0 | 0 | 0
Derivatives, included in other liabilities | 0 | 0 | 0
Total Measured on a Recurring Basis | 0 | 0 | 0
Fair Value, Measurements, Nonrecurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral Dependent Evaluated Loans | 2,423 | 594 | 582
Collateral Dependent Impaired Loans, Losses Recognized in Earnings |  |  |
Other Real Estate Owned and Repossessed Assets, Net | 242 | 155 | 942
Other Real Estate owned and Repossessed Assets, Net, Losses Recognized in Earnings | 0 | 0 | 0
Fair Value, Measurements, Nonrecurring | Quoted Prices In Active Markets for Indentical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral Dependent Evaluated Loans | 0 | 0 | 0
Other Real Estate Owned and Repossessed Assets, Net | 0 | 0 | 0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral Dependent Evaluated Loans | 0 | 0 | 0
Other Real Estate Owned and Repossessed Assets, Net | 0 | 0 | 0
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Collateral Dependent Evaluated Loans | 2,423 | 594 | 582
Other Real Estate Owned and Repossessed Assets, Net | 242 | 155 | 942
U.S. Government & Agency Obligations |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 108,370 | 65,112 | 5,181
U.S. Government & Agency Obligations | Fair Value, Measurements, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 108,370 | 65,112 | 5,181
U.S. Government & Agency Obligations | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 0 | 0 | 0
U.S. Government & Agency Obligations | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 108,370 | 65,112 | 5,181
U.S. Government & Agency Obligations | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 0 | 0 | 0
State and Municipal Obligations |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 508 | 528 | 723
State and Municipal Obligations | Fair Value, Measurements, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 508 | 528 | 723
State and Municipal Obligations | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 0 | 0 | 0
State and Municipal Obligations | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 508 | 528 | 723
State and Municipal Obligations | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 0 | 0 | 0
Mortgage-Backed Securities - Residential | Fair Value, Measurements, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 354,411 | 298,847 | 371,482
Mortgage-Backed Securities - Residential | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 0 | 0 | 0
Mortgage-Backed Securities - Residential | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 354,411 | 298,847 | 371,482
Mortgage-Backed Securities - Residential | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 0 | 0 | 0
Corporate and Other Debt Securities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 800 | 800 | 800
Corporate and Other Debt Securities | Fair Value, Measurements, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 800 | 800 | 800
Corporate and Other Debt Securities | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets for Indentical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 0 | 0 | 0
Corporate and Other Debt Securities | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | 800 | 800 | 800
Corporate and Other Debt Securities | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Available-for-Sale at Fair Value | $ 0 | $ 0 | $ 0

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 + Details
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