Fair Value Measurements - Mortgage Servicing Rights - Summary (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Assets:
Available for sale debt securities fair value	$ 183,454	$ 188,742
Loans held for sale	2,909	3,884
U.S. Treasury
Assets:
Available for sale debt securities fair value	993	1,978
U.S. government and federal agency obligations
Assets:
Available for sale debt securities fair value	392	427
U.S. government-sponsored enterprises
Assets:
Available for sale debt securities fair value	12,747	21,822
Obligations of states and political subdivisions
Assets:
Available for sale debt securities fair value	104,028	106,885
Mortgage-backed securities
Assets:
Available for sale debt securities fair value	53,394	45,640
Other debt securities
Assets:
Available for sale debt securities fair value	10,695	10,821
Bank-issued trust preferred securities
Assets:
Available for sale debt securities fair value	1,205	1,169
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Available for sale debt securities fair value	993	1,978
Loans held for sale	0	0
Other Observable Inputs (Level 2)
Assets:
Available for sale debt securities fair value	182,461	186,764
Loans held for sale	2,909	3,884
Significant Unobservable Inputs (Level 3)
Assets:
Available for sale debt securities fair value	0	0
Loans held for sale	0	0
Recurring
Assets:
Loans held for sale	2,909	3,884
Mortgage servicing rights	127	1,738
Total	186,621	194,485
Liabilities:
Total	16	43
Recurring | U.S. Treasury
Assets:
Available for sale debt securities fair value	993	1,978
Recurring | U.S. government and federal agency obligations
Assets:
Available for sale debt securities fair value	392	427
Recurring | U.S. government-sponsored enterprises
Assets:
Available for sale debt securities fair value	12,747	21,822
Recurring | Obligations of states and political subdivisions
Assets:
Available for sale debt securities fair value	104,028	106,885
Recurring | Mortgage-backed securities
Assets:
Available for sale debt securities fair value	53,394	45,640
Recurring | Other debt securities
Assets:
Available for sale debt securities fair value	10,695	10,821
Recurring | Bank-issued trust preferred securities
Assets:
Available for sale debt securities fair value	1,205	1,169
Recurring | Equity securities
Assets:
Available for sale debt securities fair value	78	78
Recurring | Interest rate lock commitments
Assets:
Commitments	43	43
Liabilities:
Commitments	7	2
Recurring | Forward sale commitments
Assets:
Commitments	10
Liabilities:
Commitments	9	41
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Loans held for sale	0	0
Mortgage servicing rights	0	0
Total	1,071	2,056
Liabilities:
Total	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Treasury
Assets:
Available for sale debt securities fair value	993	1,978
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. government and federal agency obligations
Assets:
Available for sale debt securities fair value	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. government-sponsored enterprises
Assets:
Available for sale debt securities fair value	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of states and political subdivisions
Assets:
Available for sale debt securities fair value	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed securities
Assets:
Available for sale debt securities fair value	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other debt securities
Assets:
Available for sale debt securities fair value	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Bank-issued trust preferred securities
Assets:
Available for sale debt securities fair value	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity securities
Assets:
Available for sale debt securities fair value	78	78
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate lock commitments
Assets:
Commitments	0	0
Liabilities:
Commitments	0	0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Forward sale commitments
Assets:
Commitments	0
Liabilities:
Commitments	0	0
Recurring | Other Observable Inputs (Level 2)
Assets:
Loans held for sale	2,909	3,884
Mortgage servicing rights	0	0
Total	185,380	190,648
Liabilities:
Total	9	41
Recurring | Other Observable Inputs (Level 2) | U.S. Treasury
Assets:
Available for sale debt securities fair value	0	0
Recurring | Other Observable Inputs (Level 2) | U.S. government and federal agency obligations
Assets:
Available for sale debt securities fair value	392	427
Recurring | Other Observable Inputs (Level 2) | U.S. government-sponsored enterprises
Assets:
Available for sale debt securities fair value	12,747	21,822
Recurring | Other Observable Inputs (Level 2) | Obligations of states and political subdivisions
Assets:
Available for sale debt securities fair value	104,028	106,885
Recurring | Other Observable Inputs (Level 2) | Mortgage-backed securities
Assets:
Available for sale debt securities fair value	53,394	45,640
Recurring | Other Observable Inputs (Level 2) | Other debt securities
Assets:
Available for sale debt securities fair value	10,695	10,821
Recurring | Other Observable Inputs (Level 2) | Bank-issued trust preferred securities
Assets:
Available for sale debt securities fair value	1,205	1,169
Recurring | Other Observable Inputs (Level 2) | Equity securities
Assets:
Available for sale debt securities fair value	0	0
Recurring | Other Observable Inputs (Level 2) | Interest rate lock commitments
Assets:
Commitments	0	0
Liabilities:
Commitments	0	0
Recurring | Other Observable Inputs (Level 2) | Forward sale commitments
Assets:
Commitments	10
Liabilities:
Commitments	9	41
Recurring | Significant Unobservable Inputs (Level 3)
Assets:
Loans held for sale	0	0
Mortgage servicing rights	127	1,738
Total	170	1,781
Liabilities:
Total	7	2
Recurring | Significant Unobservable Inputs (Level 3) | U.S. Treasury
Assets:
Available for sale debt securities fair value	0	0
Recurring | Significant Unobservable Inputs (Level 3) | U.S. government and federal agency obligations
Assets:
Available for sale debt securities fair value	0	0
Recurring | Significant Unobservable Inputs (Level 3) | U.S. government-sponsored enterprises
Assets:
Available for sale debt securities fair value	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Obligations of states and political subdivisions
Assets:
Available for sale debt securities fair value	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage-backed securities
Assets:
Available for sale debt securities fair value	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Other debt securities
Assets:
Available for sale debt securities fair value	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Bank-issued trust preferred securities
Assets:
Available for sale debt securities fair value	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Equity securities
Assets:
Available for sale debt securities fair value	0	0
Recurring | Significant Unobservable Inputs (Level 3) | Interest rate lock commitments
Assets:
Commitments	43	43
Liabilities:
Commitments	7	2
Recurring | Significant Unobservable Inputs (Level 3) | Forward sale commitments
Assets:
Commitments	0
Liabilities:
Commitments	$ 0	$ 0