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Financial Derivative Instruments (Details)	Sep. 30, 2025 USD ($) derivative	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($) derivative	Sep. 30, 2024 USD ($) derivative
Interest rate swap agreements | Designated as Hedging Instrument
Derivative [Line Items]
Notional Amount	$ 135,000,000		$ 225,000,000	$ 225,000,000
Fair Value	(935,000)		(560,000)	(2,634,000)
Customer loan interest swap agreements
Derivative [Line Items]
Collateral posted	0
Cash Flow Hedges | Interest rate swap agreements | Designated as Hedging Instrument
Derivative [Line Items]
Notional Amount	75,000,000		75,000,000	75,000,000
Fair Value	$ 23,000		198,000	(172,000)
Cash Flow Hedges | Interest Rate Swap January 01 2026 | Designated as Hedging Instrument
Derivative [Line Items]
Fixed Rate Paid	3.836%
Cash Flow Hedges | Interest Rate Swap January 01 2026 | Designated as Hedging Instrument | Other Assets
Derivative [Line Items]
Notional Amount	$ 75,000,000		75,000,000
Fair Value	$ 23,000		$ 198,000
Cash Flow Hedges | Interest Rate Swap January 01 2026 | Designated as Hedging Instrument | Other Liabilities
Derivative [Line Items]
Notional Amount				75,000,000
Fair Value				$ (172,000)
Cash Flow Hedges | Customer loan interest swap agreements | Designated as Hedging Instrument
Derivative [Line Items]
Number of Positions | derivative	17		10	8
Cash Flow Hedges | Customer loan interest swap agreements | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Amount	$ 138,252,000		$ 95,514,000	$ 85,270,000
Fair Value	$ 0		$ 0	$ 0
Number of Positions | derivative	34		20	16
Cash Flow Hedges | Customer loan interest swap agreements | Not Designated as Hedging Instrument | Pay Fixed, Receive Variable
Derivative [Line Items]
Notional Amount	$ 69,126,000		$ 47,757,000	$ 42,635,000
Fair Value	$ 2,736,000		$ 4,685,000	$ 3,204,000
Number of Positions | derivative	17		10	8
Cash Flow Hedges | Customer loan interest swap agreements | Not Designated as Hedging Instrument | Receive Fixed, Pay Variable
Derivative [Line Items]
Notional Amount	$ 69,126,000		$ 47,757,000	$ 42,635,000
Fair Value	$ (2,736,000)		$ (4,685,000)	$ (3,204,000)
Number of Positions | derivative	17		10	8
Cash Flow Hedges | Customer loan interest swap agreements | Not Designated as Hedging Instrument | Other Assets | Pay Fixed, Receive Variable
Derivative [Line Items]
Notional Amount	$ 33,808,000		$ 43,415,000	$ 34,988,000
Fair Value	$ 3,517,000		$ 4,772,000	$ 3,478,000
Number of Positions | derivative	6		8	6
Cash Flow Hedges | Customer loan interest swap agreements | Not Designated as Hedging Instrument | Other Assets | Receive Fixed, Pay Variable
Derivative [Line Items]
Notional Amount	$ 35,318,000		$ 4,342,000	$ 7,647,000
Fair Value	$ 781,000		$ 87,000	$ 274,000
Number of Positions | derivative	11		2	2
Cash Flow Hedges | Customer loan interest swap agreements | Not Designated as Hedging Instrument | Other Liabilities | Pay Fixed, Receive Variable
Derivative [Line Items]
Notional Amount	$ 35,318,000		$ 4,342,000	$ 7,647,000
Fair Value	$ (781,000)		$ (87,000)	$ (274,000)
Number of Positions | derivative	11		2	2
Cash Flow Hedges | Customer loan interest swap agreements | Not Designated as Hedging Instrument | Other Liabilities | Receive Fixed, Pay Variable
Derivative [Line Items]
Notional Amount	$ 33,808,000		$ 43,415,000	$ 34,988,000
Fair Value	$ (3,517,000)		$ (4,772,000)	$ (3,478,000)
Number of Positions | derivative	6		8	6
Fair Value Hedges | Interest rate swap agreements
Derivative [Line Items]
Notional Amount		$ 40,000,000
Fair Value Hedges | Interest rate swap agreements | Designated as Hedging Instrument
Derivative [Line Items]
Notional Amount	$ 60,000,000		$ 150,000,000	$ 150,000,000
Fair Value	$ (958,000)		(758,000)	(2,462,000)
Fair Value Hedges | Interest Rate Swap March 01 2026 | Designated as Hedging Instrument
Derivative [Line Items]
Fixed Rate Paid	4.712%
Fair Value Hedges | Interest Rate Swap March 01 2026 | Designated as Hedging Instrument | Other Liabilities
Derivative [Line Items]
Notional Amount	$ 0		40,000,000	40,000,000
Fair Value	$ 0		(270,000)	(601,000)
Fair Value Hedges | Interest Rate Swap March 01 2027 | Designated as Hedging Instrument
Derivative [Line Items]
Fixed Rate Paid	4.402%
Fair Value Hedges | Interest Rate Swap March 01 2027 | Designated as Hedging Instrument | Other Liabilities
Derivative [Line Items]
Notional Amount	$ 30,000,000		30,000,000	30,000,000
Fair Value	$ (379,000)		(216,000)	(710,000)
Fair Value Hedges | Interest Rate Swap March 01 2028 | Designated as Hedging Instrument
Derivative [Line Items]
Fixed Rate Paid	4.189%
Fair Value Hedges | Interest Rate Swap March 01 2028 | Designated as Hedging Instrument | Other Liabilities
Derivative [Line Items]
Notional Amount	$ 30,000,000		30,000,000	30,000,000
Fair Value	$ (579,000)		(137,000)	(858,000)
Fair Value Hedges | Interest Rate Swap August 01 2025 | Designated as Hedging Instrument
Derivative [Line Items]
Fixed Rate Paid	4.703%
Fair Value Hedges | Interest Rate Swap August 01 2025 | Designated as Hedging Instrument | Other Liabilities
Derivative [Line Items]
Notional Amount	$ 0		50,000,000	50,000,000
Fair Value	0		(135,000)	(293,000)
Fair Value Hedges | Interest rate cap agreements | Designated as Hedging Instrument
Derivative [Line Items]
Notional Amount	100,000,000		0	0
Fair Value	$ 209,000		0	0
Fair Value Hedges | Interest Rate Cap July 01 2028 at 4.050% | Designated as Hedging Instrument
Derivative [Line Items]
Fixed Rate Paid	4.05%
Fair Value Hedges | Interest Rate Cap July 01 2028 at 4.050% | Designated as Hedging Instrument | Other Assets
Derivative [Line Items]
Notional Amount	$ 50,000,000		0	0
Fair Value	$ 135,000		0	0
Fair Value Hedges | Interest Rate Cap July 01 2028 at 4.550% | Designated as Hedging Instrument
Derivative [Line Items]
Fixed Rate Paid	4.55%
Fair Value Hedges | Interest Rate Cap July 01 2028 at 4.550% | Designated as Hedging Instrument | Other Assets
Derivative [Line Items]
Notional Amount	$ 50,000,000		0	0
Fair Value	$ 74,000		$ 0	$ 0

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- Definition

Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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