Fair Value of Financial Assets and Liabilities, Fair Value Measurements of Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	$ 1,163,724	$ 1,256,226
Equity securities at fair value	3,158	2,166
Liabilities measured - recurring basis [Abstract]
Liabilities	0	0
U.S. Treasury and Government Agencies [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	354,817	381,932
State and Political Subdivisions [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	264,945	265,102
U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	456,736	520,085
Asset-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	87,226	89,107
Recurring [Member]
Assets measured - recurring basis [Abstract]
Equity securities at fair value	3,158	2,166
Mortgage servicing rights	7,665	8,468
Recurring [Member] | U.S. Treasury and Government Agencies [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	354,817	381,932
Recurring [Member] | State and Political Subdivisions [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	264,945	265,102
Recurring [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	456,736	520,085
Recurring [Member] | Asset-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	87,226	89,107
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets measured - recurring basis [Abstract]
Equity securities at fair value	0	0
Mortgage servicing rights	0	0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury and Government Agencies [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	336,285	346,265
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | State and Political Subdivisions [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	0	0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	0	0
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Asset-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	0	0
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets measured - recurring basis [Abstract]
Equity securities at fair value	0	0
Mortgage servicing rights	0	0
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Treasury and Government Agencies [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	18,532	35,667
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | State and Political Subdivisions [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	264,945	265,102
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	456,736	520,085
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Asset-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	87,226	89,107
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets measured - recurring basis [Abstract]
Equity securities at fair value	3,158	2,166
Mortgage servicing rights	7,665	8,468
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | U.S. Treasury and Government Agencies [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	0	0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | State and Political Subdivisions [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	0	0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | U.S. Government Sponsored Agency Mortgage-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	0	0
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Asset-backed Securities [Member]
Assets measured - recurring basis [Abstract]
Debt securities available-for-sale	$ 0	$ 0