Income Taxes - Schedule of Net Deferred Tax Asset (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets:
Allowance for loan losses	$ 8,031	$ 7,878
Loan fees	811	769
Deferred compensation	1,899	1,317
Benefit plans	46	50
Unrealized loss on securities	2,373	5,389
Lease adjustments	53	87
Business combination adjustments	7,057	4,659
Acquired NOL, Section 1231, and charitable contribution carryforwards	3,198	3,153
Rabbi trust	442	521
Riverview AMT credits	547	621
Equity compensation	776	249
Riverview subordinated debt fair value adjustment	0	139
Software renewal costs	194	222
Unfunded commitments and loan basis adjustments	609	491
Investments in flow-through entities	203	517
Other	276	482
Total deferred tax assets	26,515	26,544
Deferred tax liabilities:
Depreciation	(2,134)	(1,160)
Bond accretion	(401)	(269)
Goodwill and intangibles	(226)	(505)
Prepaid expenses	(818)	(74)
Benefit plans	(1,520)	(1,368)
Interest rate swaps	0	(421)
Total deferred tax liabilities	(5,099)	(3,797)
Deferred tax asset, net	$ 21,416	$ 22,747

Deferred Tax Asset, Unfunded And Loan Basis Adjustments

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Deferred tax assets lease adjustments.

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Deferred tax assets, related to acquisition, adjustment.

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Deferred Tax Assets, Subordinated Debt Fair Value Adjustment

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Deferred tax liabilities tax deferred expense compensation and benefits employee compensation.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from investments (excludes investments in subsidiaries and equity method investments).

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from employee compensation.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from allowance for credit loss on financing receivable.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of deferred tax liability attributable to taxable temporary differences from intangible assets including goodwill.

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Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses.

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Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

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