Derivatives - Narrative (Details)	4 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2023 USD ($) swap	Sep. 15, 2023	Dec. 31, 2023 USD ($) swap	Dec. 31, 2022 USD ($) swap	Dec. 31, 2021 USD ($)
Derivatives, Fair Value [Line Items]
Threshold for collateral requirements			$ 250,000
Collateral posted	$ 566,000		566,000	$ 553,000
Derivative notional amount	$ 218,000,000		$ 218,000,000	$ 226,200,000
Number of instruments | swap	40		40	40
Interest rate swap income			$ 61,000	$ 157,000	$ 452,000
Commitments to originate loans held for sale	$ 22,926,000		22,926,000	29,065,000
RML
Derivatives, Fair Value [Line Items]
Commitments to originate loans held for sale	$ 22,900,000		$ 22,900,000	29,100,000
Secured Overnight Financing Rate (SOFR)
Derivatives, Fair Value [Line Items]
Tenor spread adjustment (as a percent)	0.0026		0.0026
Subordinated Debt
Derivatives, Fair Value [Line Items]
Junior subordinated debenture	$ 10,000,000		$ 10,000,000
Effective interest rate on junior subordinated debenture	3.72%		3.72%
Debt instrument, interest rate during period			7.02%
Subordinated Debt | Secured Overnight Financing Rate (SOFR)
Derivatives, Fair Value [Line Items]
Debt instrument, basis spread on variable rate	1.37%
Subordinated Debt | London Interbank Offered Rate (LIBOR)
Derivatives, Fair Value [Line Items]
Debt instrument, basis spread on variable rate		1.37%
Variable to Fixed
Derivatives, Fair Value [Line Items]
Derivative notional amount	$ 109,000,000		$ 109,000,000
Number of instruments | swap	20		20
Fixed to Variable
Derivatives, Fair Value [Line Items]
Derivative notional amount	$ 109,000,000		$ 109,000,000
Number of instruments | swap	20		20
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
Unrealized gain (loss) on interest rate swap	$ 1,400,000		$ 1,400,000	$ (1,500,000)