Finite lived tangible assets acquired.

No definition available.

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- Definition

Amount of amortization expense for finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.

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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.

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- Definition

Amount of amortization expense for finite-lived intangible asset expected to be recognized in remainder of current fiscal year. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.

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- Definition

Period remaining for amortization of finite-lived intangible asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.

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- Definition

Amount of increase in finite-lived intangible asset acquired in business combination, asset acquisition, and from joint venture formation. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.

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Business Combination and Asset Purchase - Additional Information (Detail) - USD ($) $ in Thousands		9 Months Ended		12 Months Ended
	Jan. 01, 2019	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2020
Business Acquisition [Line Items]
Amortization expense		$ 822	$ 1,242
Core Deposits [Member]
Business Acquisition [Line Items]
Amortization expense		822	1,200
Amortization expense for 2026		1,096
Customer Lists [Member]
Business Acquisition [Line Items]
Amortization expense		92	$ 92
Peoples Federal Savings and Loan [Member] \| Core Deposits [Member]
Business Acquisition [Line Items]
Recognition of core deposit tangible asset with acquired purchase		6,000
Amortization expense for 2026		861
Ossian State Bank [Member] \| Core Deposits [Member]
Business Acquisition [Line Items]
Recognition of core deposit tangible asset with acquired purchase		$ 980
Bank of Geneva [Member] \| Core Deposits [Member]
Business Acquisition [Line Items]
Remaining economic useful life		7 years
Amortization expense	$ 420
Perpetual Federal Savings Bank [Member] \| Core Deposits [Member]
Business Acquisition [Line Items]
Recognition of core deposit tangible asset with acquired purchase		$ 668
Adams County Financial Resources [Member] \| Customer Lists [Member]
Business Acquisition [Line Items]
Recognition of core deposit intangible asset with acquired purchase				$ 800
Remaining economic useful life				6 years 6 months
Amortization expense for 2026		$ 123