Business Combination, Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Line Items]
Goodwill impairment	$ 1,107	$ 0	$ 0
Amortization of core deposit intangible	$ 46	47	47
Core Deposits
Goodwill [Line Items]
Finite-lived intangible asset, useful life	10 years
Amortization of core deposit intangible	$ 46	47	47
American Challenger | Project Expenses
Goodwill [Line Items]
Acquisition related costs	$ 0	$ 112	$ 1,900