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Fair Value of Financial Assets and Liabilities, Fair Value Measurements of Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	$ 1,111,505	$ 1,163,724
Equity securities at fair value	3,529	3,158
U.S. Treasury and Government Agencies [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	340,501	354,817
State and Political Subdivisions [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	261,430	264,945
U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	436,376	456,736
Asset-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	73,198	87,226
Recurring [Member]
Assets measured - recurring basis [Abstract]
Equity securities at fair value	3,529	3,158
Mortgage servicing rights	7,792	7,665
Recurring [Member] | U.S. Treasury and Government Agencies [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	340,501	354,817
Recurring [Member] | State and Political Subdivisions [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	261,430	264,945
Recurring [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	436,376	456,736
Recurring [Member] | Asset-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	73,198	87,226
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring [Member]
Assets measured - recurring basis [Abstract]
Equity securities at fair value	0	0
Mortgage servicing rights	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring [Member] | U.S. Treasury and Government Agencies [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	323,332	336,285
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring [Member] | State and Political Subdivisions [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Recurring [Member] | Asset-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	0	0
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member]
Assets measured - recurring basis [Abstract]
Equity securities at fair value	0	0
Mortgage servicing rights	0	0
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | U.S. Treasury and Government Agencies [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	17,169	18,532
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | State and Political Subdivisions [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	261,430	264,945
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	436,376	456,736
Significant Other Observable Inputs (Level 2) [Member] | Recurring [Member] | Asset-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	73,198	87,226
Significant Unobservable Inputs (Level 3) [Member] | Recurring [Member]
Assets measured - recurring basis [Abstract]
Equity securities at fair value	3,529	3,158
Mortgage servicing rights	7,792	7,665
Significant Unobservable Inputs (Level 3) [Member] | Recurring [Member] | U.S. Treasury and Government Agencies [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring [Member] | State and Political Subdivisions [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	0	0
Significant Unobservable Inputs (Level 3) [Member] | Recurring [Member] | Asset-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	$ 0	$ 0

X

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents mortgage servicing right at fair value.

+ References

No definition available.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aa)
-Publisher FASB
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 45
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481830/320-10-45-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479130/326-30-45-1

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
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-Name Accounting Standards Codification
-Section 45
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483467/210-10-45-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
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-Name Accounting Standards Codification
-Section 45
-Paragraph 1A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482736/825-10-45-1A

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