Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Allowance for credit losses	$ 2,866	$ 2,858
ASC 715 pension funding liability	1,952	4,656
Supplemental executive retirement plan accrual	2,293	2,220
Stock compensation	1,875	1,794
Lease liability	1,145	1,436
Other	633	0
Total deferred tax assets	10,764	12,964
Deferred tax liabilities:
Premises and equipment	(2,235)	(2,693)
Pension	(531)	(14)
Intangible assets	(1,493)	(1,761)
Unrealized gain on investment securities available-for-sale	(2,185)	(4,684)
Right of use asset	(1,032)	(1,291)
Other	(497)	(224)
Total deferred tax liabilities	(7,973)	(10,667)
Net deferred tax assets	$ 2,791	$ 2,297

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Deferred tax liabilities, pension costs.

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based 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 of deferred tax liability attributable to taxable temporary differences from unrealized gains on trading securities.

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