Business Combination and Asset Purchase - Schedule of Annual Amortization of Core Deposit Intangible Assets (Detail) $ in Thousands	Sep. 30, 2022 USD ($)
Core Deposits [Member]
Business Acquisition [Line Items]
2022	$ 795
2023	795
2024	795
2025	795
2026	235
Thereafter	356
Finite-Lived Intangible Assets, Net	3,771
Core Deposits [Member] \| Geneva [Member]
Business Acquisition [Line Items]
2022	560
2023	560
2024	560
2025	560
Finite-Lived Intangible Assets, Net	2,240
Core Deposits [Member] \| Ossian [Member]
Business Acquisition [Line Items]
2022	140
2023	140
2024	140
2025	140
2026	140
Thereafter	187
Finite-Lived Intangible Assets, Net	887
Core Deposits [Member] \| Perpetual Federal Savings Bank [Member]
Business Acquisition [Line Items]
2022	95
2023	95
2024	95
2025	95
2026	95
Thereafter	169
Finite-Lived Intangible Assets, Net	644
Customer Lists [Member]
Business Acquisition [Line Items]
2022	123
Customer Lists [Member] \| Adams County Financial Resources [Member]
Business Acquisition [Line Items]
2022	123
2023	123
2024	123
2025	123
2026	123
Thereafter	47
Finite-Lived Intangible Assets, Net	$ 662

Finite lived intangible assets amortization expense after year four.

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+ References

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 350
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-Paragraph 2
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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in remainder of current fiscal year.

+ References

No definition available.

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
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