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Allowance for Loan Losses - Changes in the Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	$ 26,641	$ 25,028	$ 14,767
Charge-offs	(222)	(159)	(465)
Recoveries	340	942	614
Provision (Credit)	1,752	830	10,112
Ending Balance	28,511	26,641	25,028
Commercial and Agriculture [Member]
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	2,600	2,810	2,219
Charge-offs	(22)	(15)	(20)
Recoveries	24	165	7
Provision (Credit)	409	(360)	604
Ending Balance	3,011	2,600	2,810
Commercial Real Estate Owner Occupied [Member]
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	4,464	4,057	2,541
Charge-offs			(148)
Recoveries	42	7	259
Provision (Credit)	59	400	1,405
Ending Balance	4,565	4,464	4,057
Commercial Real Estate Non Owner Occupied [Member]
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	13,860	12,451	6,584
Recoveries	74	395	48
Provision (Credit)	204	1,014	5,819
Ending Balance	14,138	13,860	12,451
Residential Real Estate [Member]
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	2,597	2,484	1,582
Charge-offs	(97)	(120)	(236)
Recoveries	163	302	218
Provision (Credit)	482	(69)	920
Ending Balance	3,145	2,597	2,484
Real Estate Construction [Member]
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	1,810	2,439	1,250
Recoveries	4	1	4
Provision (Credit)	479	(630)	1,185
Ending Balance	2,293	1,810	2,439
Farm Real Estate [Member]
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	287	338	344
Recoveries	6	12	13
Provision (Credit)	(2)	(63)	(19)
Ending Balance	291	287	338
Lease Financing Receivable [Member]
Accounts Notes And Loans Receivable [Line Items]
Charge-offs	(23)
Provision (Credit)	452
Ending Balance	429
Consumer and Other [Member]
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	176	209	247
Charge-offs	(80)	(24)	(61)
Recoveries	27	60	65
Provision (Credit)	(25)	(69)	(42)
Ending Balance	98	176	209
Unallocated [Member]
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	847	240
Provision (Credit)	(306)	607	240
Ending Balance	$ 541	$ 847	$ 240

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Amount of allowance for credit loss on accounts receivable.

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Amount of expense related to estimated loss from loan and lease transactions.

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