Allowance for Loan Losses - Impaired Loans Excluding PCI Loans - Recorded Investment and Unpaid Principal Balances (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2022	Jun. 30, 2022	Dec. 31, 2022
Financing Receivable, Impaired [Line Items]
Impaired financing receivables, with no related allowance recorded, Recorded Investment			$ 467
Impaired financing receivables, with no related allowance recorded, Unpaid Principal Balance			492
Impaired financing receivables, with no related allowance recorded, Average Recorded Investment			1,289
Impaired financing receivables, with no related allowance recorded, Interest Income Recognized			60
Impaired financing receivables, with an allowance recorded, Recorded Investment			157
Impaired financing receivables, with an allowance recorded, Unpaid Principal Balance			161
Impaired financing receivables, with an allowance recorded, Related Allowance			7
Impaired financing receivables, with an allowance recorded, Average Recorded Investment			233
Impaired financing receivables, Recorded Investment, Total			624
Impaired financing receivables, Unpaid Principal Balance, Total			653
Impaired financing receivables, Related Allowance, Total			7
Impaired financing receivables, Average Recorded Investment, Total	$ 1,145	$ 1,187	1,522
Impaired financing receivables, Interest Income Recognized, Total	15	31	60
Commercial and Agriculture [Member]
Financing Receivable, Impaired [Line Items]
Impaired financing receivables, with no related allowance recorded, Average Recorded Investment			86
Impaired financing receivables, with no related allowance recorded, Interest Income Recognized			6
Impaired financing receivables, Average Recorded Investment, Total			86
Commercial Real Estate Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired financing receivables, with no related allowance recorded, Recorded Investment			82
Impaired financing receivables, with no related allowance recorded, Unpaid Principal Balance			82
Impaired financing receivables, with no related allowance recorded, Average Recorded Investment			192
Impaired financing receivables, with an allowance recorded, Recorded Investment			150
Impaired financing receivables, with an allowance recorded, Unpaid Principal Balance			150
Impaired financing receivables, with an allowance recorded, Related Allowance			6
Impaired financing receivables, with an allowance recorded, Average Recorded Investment			214
Impaired financing receivables, Recorded Investment, Total			232
Impaired financing receivables, Unpaid Principal Balance, Total			232
Impaired financing receivables, Related Allowance, Total			6
Impaired financing receivables, Average Recorded Investment, Total	178	187	406
Impaired financing receivables, Interest Income Recognized, Total	3	6	6
Commercial Real Estate Non Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
Impaired financing receivables, with no related allowance recorded, Average Recorded Investment			35
Impaired financing receivables, Average Recorded Investment, Total			35
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired financing receivables, with no related allowance recorded, Recorded Investment			385
Impaired financing receivables, with no related allowance recorded, Unpaid Principal Balance			410
Impaired financing receivables, with no related allowance recorded, Average Recorded Investment			595
Impaired financing receivables, with no related allowance recorded, Interest Income Recognized			40
Impaired financing receivables, with an allowance recorded, Recorded Investment			7
Impaired financing receivables, with an allowance recorded, Unpaid Principal Balance			11
Impaired financing receivables, with an allowance recorded, Related Allowance			1
Impaired financing receivables, with an allowance recorded, Average Recorded Investment			19
Impaired financing receivables, Recorded Investment, Total			392
Impaired financing receivables, Unpaid Principal Balance, Total			421
Impaired financing receivables, Related Allowance, Total			1
Impaired financing receivables, Average Recorded Investment, Total	466	492	614
Impaired financing receivables, Interest Income Recognized, Total	6	13	40
Lease Financing Receivables [Member]
Financing Receivable, Impaired [Line Items]
Impaired financing receivables, Average Recorded Investment, Total			381
Impaired financing receivables, Interest Income Recognized, Total			14
Farm Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired financing receivables, with no related allowance recorded, Average Recorded Investment			381
Impaired financing receivables, with no related allowance recorded, Interest Income Recognized			$ 14
Impaired financing receivables, Average Recorded Investment, Total	501	508
Impaired financing receivables, Interest Income Recognized, Total	$ 6	$ 12

Impaired financing receivable with and no related allowance.

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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Amount of allowance for credit losses related to recorded investment.

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Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

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