Fair Value of Financial Assets and Liabilities, Fair Value Measurements of Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	$ 1,090,322	$ 1,163,724
Equity securities at fair value	3,054	3,158
U.S. Treasury and Government Agencies [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	339,001	354,817
State and Political Subdivisions [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	258,142	264,945
U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	424,099	456,736
Asset-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	69,080	87,226
Recurring [Member]
Assets measured - recurring basis [Abstract]
Equity securities at fair value	3,054	3,158
Mortgage servicing rights	7,749	7,665
Recurring [Member] \| U.S. Treasury and Government Agencies [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	339,001	354,817
Recurring [Member] \| State and Political Subdivisions [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	258,142	264,945
Recurring [Member] \| U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	424,099	456,736
Recurring [Member] \| Asset-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	69,080	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	323,645	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	15,356	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	258,142	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	424,099	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	69,080	87,226
Significant Unobservable Inputs (Level 3) [Member] \| Recurring [Member]
Assets measured - recurring basis [Abstract]
Equity securities at fair value	3,054	3,158
Mortgage servicing rights	7,749	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