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Business Combination & Asset Purchase - Summary of Changes in Accretable Yield or Income Expected to be Collected (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Peoples Federal Savings and Loan [Member]
Business Acquisition [Line Items]
Beginning Balance	$ 566	$ 798
Additions		6
Accretion	(231)	(232)
Disposals		(6)
Ending Balance	335	566
Perpetual Federal Savings Bank [Member]
Business Acquisition [Line Items]
Beginning Balance	2,795	4,236
Additions		39
Accretion	(1,342)	(1,480)
Ending Balance	1,453	2,795
Ossian Financial Services, Inc. [Member]
Business Acquisition [Line Items]
Beginning Balance	294	470
Accretion	(175)	(176)
Disposals	(12)
Ending Balance	107	294
Limberlost Bancshares, Inc. [Member]
Business Acquisition [Line Items]
Beginning Balance	363	785
Additions	1	11
Accretion	$ (364)	(433)
Ending Balance		$ 363

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- Definition

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+ References

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- Definition

Business combination certain loans acquired in transfer changes accretable yield or income expected accretion.

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- Definition

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- Definition

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-5

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