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Allowance for Loan Losses - Impaired Loans - Average Recorded Investment and Interest Income Recognized (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Recorded Investment | $ 1,496 | $ 1,375 | $ 1,367 | $ 1,735
Interest Income Recognized | 14 | 18 | 43 | 58
Commercial and Agriculture [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Recorded Investment | 172 |  | 86 | 19
Commercial Real Estate Owner Occupied [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Recorded Investment | 504 | 252 | 349 | 449
Interest Income Recognized | 3 | 4 | 10 | 15
Commercial Real Estate Non Owner Occupied [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Recorded Investment | 70 | 15 | 35 | 29
Interest Income Recognized |  |  |  | 1
Residential Real Estate [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Recorded Investment | 503 | 551 | 516 | 654
Interest Income Recognized | 9 | 8 | 19 | 24
Farm Real Estate [Member] |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |
Average Recorded Investment | 247 | 557 | 381 | 584
Interest Income Recognized | $ 2 | $ 6 | $ 14 | $ 18

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
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