Interest Rate Derivatives - Cumulative Basis Adjustments for Fair Value Hedges (Parenthetical) (Details) - USD ($)		9 Months Ended
	Apr. 07, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2029	Dec. 31, 2028	Dec. 31, 2027	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2023	Dec. 07, 2023
Derivative [Line Items]
Derivative Notional Amount	$ 100,000,000	$ 81,800,000
Derivative, Fixed Interest Rate		3.208%
fair value of this swap contract		$ 213,000
Certain Loans Acquired In Transfer Not Accounted For Debt Securities Acquired During Period Consumer At Acquisition At Fair Value		1,100,000
Debt Conversion, Converted Instrument, Expiration or Due Date, Year	2035
Interest Rate Derivatives [Member]
Derivative [Line Items]
Derivative Notional Amount		73,100,000							$ 89,100,000
Derivative Asset		1,100,000							3,100,000
Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments		1,800,000	$ 1,500,000
Net Derivative Assets		875,000
Amount of designated hedging item		73,100,000
Interest Rate Swap [Member]
Derivative [Line Items]
Derivative Notional Amount				$ 15,000,000	$ 15,000,000	$ 10,000,000	$ 5,000,000	$ 5,000,000		$ 50,000,000
Interest Rate Swap [Member] | SOFR Member
Derivative [Line Items]
Derivative, Fixed Interest Rate				3.845%	3.887%	3.973%	4.136%	4.463%
Loans Receivable [Member]
Derivative [Line Items]
Amount of designated hedging item		137,900,000
Loans Receivable [Member] | Interest Rate Derivatives [Member]
Derivative [Line Items]
Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments		2,000,000	$ 1,500,000
Amount of designated hedging item		$ 131,800,000							$ 141,000,000