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Fair Value (Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Loans Held-for-Sale	$ 17,459,000	$ 16,904,000
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	1,585,348,000	1,217,852,000
Loans Held-for-Sale	17,459,000	16,904,000
Derivative Assets	6,229,000	8,806,000
Derivative Liabilities	6,534,000	9,353,000
Fair Value, Measurements, Recurring | Obligations of State and Political Subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	733,897,000	581,247,000
Fair Value, Measurements, Recurring | MBS/CMO
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	706,495,000	548,307,000
Fair Value, Measurements, Recurring | US Gov't Sponsored Entities & Agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	144,956,000	88,298,000
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	0	0
Loans Held-for-Sale	0	0
Derivative Assets	0	0
Derivative Liabilities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of State and Political Subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | MBS/CMO
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | US Gov't Sponsored Entities & Agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	1,585,348,000	1,217,355,000
Loans Held-for-Sale	17,459,000	16,904,000
Derivative Assets	6,229,000	8,806,000
Derivative Liabilities	6,534,000	9,353,000
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Obligations of State and Political Subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	733,897,000	580,750,000
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | MBS/CMO
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	706,495,000	548,307,000
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | US Gov't Sponsored Entities & Agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	144,956,000	88,298,000
Fair Value, Measurements, Recurring | Significant Unobservable  Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	0	497,000
Loans Held-for-Sale	0	0
Derivative Assets	0	0
Derivative Liabilities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable  Inputs (Level 3) | Obligations of State and Political Subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	0	497,000
Fair Value, Measurements, Recurring | Significant Unobservable  Inputs (Level 3) | MBS/CMO
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable  Inputs (Level 3) | US Gov't Sponsored Entities & Agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Securities	$ 0	$ 0

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Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]

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Fair value as of the balance sheet date of all derivative assets not designated as hedging instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
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Fair value as of the balance sheet date of all derivative liabilities not designated as hedging instruments.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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