Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Lessee, Lease, Description [Line Items]
Operating right-of-use assets	$ 1,300		$ 1,300
Operating lease liabilities	$ 1,295		$ 1,295		$ 1,533
Weighted-average remaining lease term (in years)	5 years 3 months 18 days		5 years 3 months 18 days
Weighted-average discount rate (as a percent)	4.00%		4.00%
Operating lease, right-of-use asset, statement of financial position [Extensible Enumeration]	Premises and equipment - net		Premises and equipment - net
Operating lease cost	$ 93	$ 93	$ 279	$ 280
Operating lease expense	$ 33	$ 21	$ 95	$ 65
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease terms (in years)	1 year		1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease terms (in years)	10 years		10 years