Income Taxes - Net Deferred Tax Asset (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Allowance for loan losses	$ 3,981	$ 3,065
Loan fees	898	1,409
Deferred compensation	1,115	2,661
Benefit plans	56	98
Unrealized loss on securities	5,137	63
Lease adjustments	193	485
Business combination adjustments	2,066	4,067
Acquired NOL, Section 1231, and charitable contribution carryforwards	686	745
Rabbi Trust	985	0
Riverview AMT credits	771	777
Riverview subordinated debt fair value adjustment	353	0
Software renewal costs	420	525
Other	892	513
Deferred tax assets, gross, total	17,553	14,408
Deferred tax liabilities:
Depreciation	(1,175)	(843)
Bond accretion	(97)	(39)
Goodwill and intangibles	(362)	(364)
Prepaid expenses	(797)	(706)
Business combination adjustments	(398)	(547)
Benefit plans	(1,049)	(1,130)
Deferred tax liabilities, gross, total	(3,878)	(3,629)
Deferred tax asset, net	$ 13,675	$ 10,779

Deferred tax assets lease adjustments.

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Deferred tax assets, related to acquisition, adjustment.

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Deferred tax liabilities, related to acquisition.

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Amount of deferred tax liability attributable to taxable temporary differences.

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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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