Derivatives - Narrative (Details)	3 Months Ended		6 Months Ended		9 Months Ended	10 Months Ended
	Jun. 30, 2024 USD ($) swap	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) swap	Jun. 30, 2023 USD ($)	Sep. 15, 2023	Jun. 30, 2024 USD ($) swap	Dec. 31, 2023 USD ($)
Derivatives, Fair Value [Line Items]
Collateral requirement threshold			$ 250,000
Collateral posted	$ 566,000		566,000			$ 566,000	$ 566,000
Derivative notional amount	$ 228,000,000.0		$ 228,000,000.0			$ 228,000,000.0	218,000,000.0
Number of derivatives | swap	21		21			21
Interest and fee income, commercial loans	$ 10,000	$ 61,000	$ 73,000	$ 61,000
Residential Mortgage Holding Company
Derivatives, Fair Value [Line Items]
Commitments to originate mortgage loans held for sale	88,000,000.0		88,000,000.0			$ 88,000,000.0	22,900,000
Secured Overnight Financing Rate (SOFR)
Derivatives, Fair Value [Line Items]
Tenor spread adjustment						0.0026
Subordinated debt
Derivatives, Fair Value [Line Items]
Junior subordinated debenture	$ 10,000,000.0		$ 10,000,000.0			$ 10,000,000.0
Junior subordinated debenture, effective interest rate (percent)	3.72%		3.72%			3.72%
Debt instrument, interest rate during period (percent)			6.97%
Subordinated debt | LIBOR
Derivatives, Fair Value [Line Items]
Debt instrument, basis spread on variable rate (percent)					1.37%
Subordinated debt | Secured Overnight Financing Rate (SOFR)
Derivatives, Fair Value [Line Items]
Debt instrument, basis spread on variable rate (percent)						1.37%
Variable to Fixed
Derivatives, Fair Value [Line Items]
Derivative notional amount	$ 114,000,000.0		$ 114,000,000.0			$ 114,000,000.0
Number of derivatives | swap	21		21			21
Fixed to Variable
Derivatives, Fair Value [Line Items]
Derivative notional amount	$ 114,000,000.0		$ 114,000,000.0			$ 114,000,000.0
Number of derivatives | swap	21		21			21
Interest rate swaps | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Cash pledged to collateralize fair value exposure on interest rate swap	$ 130,000		$ 130,000			$ 130,000	130,000
Unrealized gain (loss) on interest rate swap	$ 1,200,000		$ 1,200,000			$ 1,200,000	$ 1,000,000.0