Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Operating right-of-use assets	$ 1,600		$ 1,600
Operating lease liabilities	$ 1,610		$ 1,610		$ 1,837
Weighted-average remaining lease term (in years)	5 years 10 months 24 days		5 years 10 months 24 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	$ 280	$ 289
Operating lease expense	$ 21	$ 24	$ 65	$ 56
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