Nature of Operations and Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2024 USD ($) Entity	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Organization Consolidation And Presentation Of Financial Statements Disclosure And Significant Accounting Policies [Line Items]
Number of entities | Entity	2
Interest or penalties incurred	$ 0	$ 0	$ 0
Retained earnings	$ 194,920,000	$ 141,006,000
Minimum [Member] | Core Deposits [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure And Significant Accounting Policies [Line Items]
Estimated useful lives of core deposits	7 years
Maximum [Member] | Core Deposits [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure And Significant Accounting Policies [Line Items]
Estimated useful lives of core deposits	10 years
Buildings and Improvements [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure And Significant Accounting Policies [Line Items]
Estimated useful lives	39 years
Furniture and Fixtures [Member] | Minimum [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure And Significant Accounting Policies [Line Items]
Estimated useful lives	4 years
Furniture and Fixtures [Member] | Maximum [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure And Significant Accounting Policies [Line Items]
Estimated useful lives	7 years
Equipment [Member] | Minimum [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure And Significant Accounting Policies [Line Items]
Estimated useful lives	4 years
Equipment [Member] | Maximum [Member]
Organization Consolidation And Presentation Of Financial Statements Disclosure And Significant Accounting Policies [Line Items]
Estimated useful lives	7 years