Financial Derivative Instruments (Details)	Mar. 31, 2026 USD ($) derivative	Dec. 31, 2025 USD ($) derivative	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($) derivative
Customer loan interest swap agreements
Derivative [Line Items]
Collateral posted	$ 0
Designated as Hedging Instrument | Interest rate swap agreements
Derivative [Line Items]
Notional Amount	60,000,000	$ 135,000,000		$ 225,000,000
Fair Value	(502,000)	(910,000)		(1,016,000)
Cash Flow Hedges | Designated as Hedging Instrument | Interest rate swap agreements
Derivative [Line Items]
Notional Amount	0	75,000,000		75,000,000
Fair Value	$ 0	0		104,000
Cash Flow Hedges | Designated as Hedging Instrument | Interest Rate Swap January 01 2026
Derivative [Line Items]
Fixed Rate Paid	3.836%
Cash Flow Hedges | Designated as Hedging Instrument | Interest Rate Swap January 01 2026 | Other Assets
Derivative [Line Items]
Notional Amount	$ 0	75,000,000		75,000,000
Fair Value	$ 0	$ 0		$ 104,000
Cash Flow Hedges | Designated as Hedging Instrument | Customer loan interest swap agreements
Derivative [Line Items]
Number of Positions | derivative	19	18		12
Cash Flow Hedges | Not Designated as Hedging Instrument | Customer loan interest swap agreements
Derivative [Line Items]
Notional Amount	$ 185,084,000	$ 169,290,000		$ 116,258,000
Fair Value	$ 0	$ 0		$ 0
Number of Positions | derivative	38	36		24
Cash Flow Hedges | Not Designated as Hedging Instrument | Customer loan interest swap agreements | Pay Fixed, Receive Variable
Derivative [Line Items]
Notional Amount	$ 92,542,000	$ 84,645,000		$ 58,129,000
Fair Value	$ 3,130,000	$ 2,794,000		$ 3,652,000
Number of Positions | derivative	19	18		12
Cash Flow Hedges | Not Designated as Hedging Instrument | Customer loan interest swap agreements | Receive Fixed, Pay Variable
Derivative [Line Items]
Notional Amount	$ 92,542,000	$ 84,645,000		$ 58,129,000
Fair Value	$ (3,130,000)	$ (2,794,000)		$ (3,652,000)
Number of Positions | derivative	19	18		12
Cash Flow Hedges | Not Designated as Hedging Instrument | Customer loan interest swap agreements | Other Assets | Pay Fixed, Receive Variable
Derivative [Line Items]
Notional Amount	$ 35,380,000	$ 33,506,000		$ 34,398,000
Fair Value	$ 3,585,000	$ 3,551,000		$ 4,078,000
Number of Positions | derivative	7	6		6
Cash Flow Hedges | Not Designated as Hedging Instrument | Customer loan interest swap agreements | Other Assets | Receive Fixed, Pay Variable
Derivative [Line Items]
Notional Amount	$ 57,162,000	$ 51,139,000		$ 23,731,000
Fair Value	$ 455,000	$ 757,000		$ 426,000
Number of Positions | derivative	12	12		6
Cash Flow Hedges | Not Designated as Hedging Instrument | Customer loan interest swap agreements | Other Liabilities | Pay Fixed, Receive Variable
Derivative [Line Items]
Notional Amount	$ 57,162,000	$ 51,139,000		$ 23,731,000
Fair Value	$ (455,000)	$ (757,000)		$ (426,000)
Number of Positions | derivative	12	12		6
Cash Flow Hedges | Not Designated as Hedging Instrument | Customer loan interest swap agreements | Other Liabilities | Receive Fixed, Pay Variable
Derivative [Line Items]
Notional Amount	$ 35,380,000	$ 33,506,000		$ 34,398,000
Fair Value	$ (3,585,000)	$ (3,551,000)		$ (4,078,000)
Number of Positions | derivative	7	6		6
Fair Value Hedges | Interest rate swap agreements
Derivative [Line Items]
Notional Amount			$ 40,000,000
Fair Value Hedges | Designated as Hedging Instrument | Interest rate swap agreements
Derivative [Line Items]
Notional Amount	$ 60,000,000	$ 60,000,000		$ 150,000,000
Fair Value	$ (502,000)	(910,000)		(1,120,000)
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Swap March 01 2026
Derivative [Line Items]
Fixed Rate Paid	4.712%
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Swap March 01 2026 | Other Liabilities
Derivative [Line Items]
Notional Amount	$ 0	0		40,000,000
Fair Value	$ 0	0		(256,000)
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Swap March 01 2027
Derivative [Line Items]
Fixed Rate Paid	4.402%
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Swap March 01 2027 | Other Liabilities
Derivative [Line Items]
Notional Amount	$ 30,000,000	30,000,000		30,000,000
Fair Value	$ (190,000)	(352,000)		(367,000)
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Swap March 01 2028
Derivative [Line Items]
Fixed Rate Paid	4.189%
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Swap March 01 2028 | Other Liabilities
Derivative [Line Items]
Notional Amount	$ 30,000,000	30,000,000		30,000,000
Fair Value	$ (312,000)	(558,000)		(431,000)
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Swap August 01 2025
Derivative [Line Items]
Fixed Rate Paid	4.703%
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Swap August 01 2025 | Other Liabilities
Derivative [Line Items]
Notional Amount	$ 0	0		50,000,000
Fair Value	0	0		(66,000)
Fair Value Hedges | Designated as Hedging Instrument | Interest rate cap agreements
Derivative [Line Items]
Notional Amount	200,000,000	100,000,000		0
Fair Value	$ 1,312,000	154,000		0
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Cap July 01 2028 at 4.050%
Derivative [Line Items]
Fixed Rate Paid	4.05%
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Cap July 01 2028 at 4.050% | Other Assets
Derivative [Line Items]
Notional Amount	$ 50,000,000	50,000,000		0
Fair Value	$ 212,000	100,000		0
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Cap July 01 2028 at 4.550%
Derivative [Line Items]
Fixed Rate Paid	4.55%
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Cap July 01 2028 at 4.550% | Other Assets
Derivative [Line Items]
Notional Amount	$ 50,000,000	50,000,000		0
Fair Value	$ 120,000	54,000		0
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Cap March 01 2029 at 3.750%
Derivative [Line Items]
Fixed Rate Paid	3.75%
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Cap March 01 2029 at 3.750% | Other Assets
Derivative [Line Items]
Notional Amount	$ 50,000,000	0		0
Fair Value	$ 489,000	0		0
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Cap March 01 2030 at 4.250%
Derivative [Line Items]
Fixed Rate Paid	4.25%
Fair Value Hedges | Designated as Hedging Instrument | Interest Rate Cap March 01 2030 at 4.250% | Other Assets
Derivative [Line Items]
Notional Amount	$ 50,000,000	0		0
Fair Value	$ 491,000	$ 0		$ 0