Fair Values of Financial Instruments- Fair Value, Assets Measured on Recurring Basis (Details) - Fair Value, Recurring - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	$ 282,688	$ 284,900
Mortgage-backed securities - government-sponsored enterprises (GSE) residential
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	111,481	115,982
Corporate obligations
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	8,860	9,633
U.S. Treasury securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	2,976	3,460
SBA Pools
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	4,772	6,135
Federal agencies
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	13,153	12,648
State and municipal obligations
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	141,446	137,042
Quoted Prices in Active Markets for Identical   Assets (Level 1)
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	2,976	3,460
Quoted Prices in Active Markets for Identical   Assets (Level 1) | Mortgage-backed securities - government-sponsored enterprises (GSE) residential
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	0	0
Quoted Prices in Active Markets for Identical   Assets (Level 1) | Corporate obligations
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	0	0
Quoted Prices in Active Markets for Identical   Assets (Level 1) | U.S. Treasury securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	2,976	3,460
Quoted Prices in Active Markets for Identical   Assets (Level 1) | SBA Pools
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	0	0
Quoted Prices in Active Markets for Identical   Assets (Level 1) | Federal agencies
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	0	0
Quoted Prices in Active Markets for Identical   Assets (Level 1) | State and municipal obligations
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	279,712	281,440
Significant Other Observable Inputs (Level 2) | Mortgage-backed securities - government-sponsored enterprises (GSE) residential
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	111,481	115,982
Significant Other Observable Inputs (Level 2) | Corporate obligations
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	8,860	9,633
Significant Other Observable Inputs (Level 2) | U.S. Treasury securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	0	0
Significant Other Observable Inputs (Level 2) | SBA Pools
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	4,772	6,135
Significant Other Observable Inputs (Level 2) | Federal agencies
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	13,153	12,648
Significant Other Observable Inputs (Level 2) | State and municipal obligations
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	141,446	137,042
Significant Unobservable Inputs (Level 3)
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	0	0
Significant Unobservable Inputs (Level 3) | Mortgage-backed securities - government-sponsored enterprises (GSE) residential
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	0	0
Significant Unobservable Inputs (Level 3) | Corporate obligations
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	0	0
Significant Unobservable Inputs (Level 3) | U.S. Treasury securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	0	0
Significant Unobservable Inputs (Level 3) | SBA Pools
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	0	0
Significant Unobservable Inputs (Level 3) | Federal agencies
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	0	0
Significant Unobservable Inputs (Level 3) | State and municipal obligations
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value disclosure	$ 0	$ 0