Loans and Allowance for Credit Losses - Summary of Gross Charge-offs by Origination Year and Loan Class (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
Gross Charge-offs by Origination Year, 2024	$ (72)	$ (12)
Gross Charge-offs by Origination Year, 2023	(43)	(963)
Gross Charge-offs by Origination Year, 2022	(1,438)	(15)
Gross Charge-offs by Origination Year, 2021		(1,198)
Gross Charge-offs by Origination Year, Prior Years	(42)	(1,841)
Gross Charge-offs by Origination Revolving Loans Amortized Cost Basis	(1,702)	(287)
Total Charge-Offs	(3,297)	(4,316)
Non-Farm Non-Residential Non-Owner Occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Gross Charge-offs by Origination Year, Prior Years		(598)
Total Charge-Offs		(598)
Commercial & Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Gross Charge-offs by Origination Year, 2024	(72)
Gross Charge-offs by Origination Year, 2023	(43)	(923)
Gross Charge-offs by Origination Year, 2022	(1,408)
Gross Charge-offs by Origination Year, 2021		(1,198)
Gross Charge-offs by Origination Year, Prior Years	(32)	(1,243)
Gross Charge-offs by Origination Revolving Loans Amortized Cost Basis	(1,702)	(287)
Total Charge-Offs	(3,257)	(3,651)
Municipal and Other
Financing Receivable, Credit Quality Indicator [Line Items]
Gross Charge-offs by Origination Year, 2024		(12)
Gross Charge-offs by Origination Year, 2023		(40)
Gross Charge-offs by Origination Year, 2022	(30)	(15)
Gross Charge-offs by Origination Year, Prior Years	(10)
Total Charge-Offs	$ (40)	$ (67)