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Loans - Credit Risk Rating for Commercial, Construction and Non-Consumer Related Loans (Details) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2021 USD ($) rating | Dec. 31, 2020 USD ($)
Receivables [Abstract] |  |
Number of risk rating approaches | rating | 2 |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | $ 799,970 | $ 645,825
Commercial and Industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 51,135 | 47,514
Commercial Real Estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 309,727 | 282,951
Commercial Real Estate | Residential mortgages |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 172,120 | 37,236
Commercial Real Estate | Home improvement and home equity loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 83 | 107
Real Estate Construction and Development |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 165,370 | 175,016
Agricultural |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 56,091 | 51,079
Commercial, Construction and Other Non-Consumer Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 582,323 | 556,560
Installment and student loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 53,411 | 61,508
Real Estate and Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 225,614 | 98,851
Grades 1 and 2 | Commercial and Industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 6,564 | 9,811
Grades 1 and 2 | Commercial Real Estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 0
Grades 1 and 2 | Real Estate Construction and Development |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 0
Grades 1 and 2 | Agricultural |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 30
Grades 1 and 2 | Commercial, Construction and Other Non-Consumer Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 6,564 | 9,841
Grade 3 | Commercial and Industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 0
Grade 3 | Commercial Real Estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 263 | 519
Grade 3 | Real Estate Construction and Development |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 0
Grade 3 | Agricultural |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 0
Grade 3 | Commercial, Construction and Other Non-Consumer Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 263 | 519
Grades 4 and 5 – pass | Commercial and Industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 44,565 | 35,919
Grades 4 and 5 – pass | Commercial Real Estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 274,214 | 267,215
Grades 4 and 5 – pass | Real Estate Construction and Development |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 154,097 | 163,959
Grades 4 and 5 – pass | Agricultural |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 42,192 | 49,006
Grades 4 and 5 – pass | Commercial, Construction and Other Non-Consumer Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 515,068 | 516,099
Grade 6 – special mention | Commercial and Industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 1,307
Grade 6 – special mention | Commercial Real Estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 35,250 | 14,343
Grade 6 – special mention | Real Estate Construction and Development |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 0
Grade 6 – special mention | Agricultural |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 11,537 | 1,434
Grade 6 – special mention | Commercial, Construction and Other Non-Consumer Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 46,787 | 17,084
Grade 7 – substandard | Commercial and Industrial |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 6 | 477
Grade 7 – substandard | Commercial Real Estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 874
Grade 7 – substandard | Real Estate Construction and Development |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 11,273 | 11,057
Grade 7 – substandard | Agricultural |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 2,362 | 609
Grade 7 – substandard | Commercial, Construction and Other Non-Consumer Loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 13,641 | 13,017
Not graded | Commercial Real Estate | Residential mortgages |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 161,668 | 27,484
Not graded | Commercial Real Estate | Home improvement and home equity loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 70 | 92
Not graded | Installment and student loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 52,667 | 60,414
Not graded | Real Estate and Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 214,405 | 87,990
Pass | Commercial Real Estate | Residential mortgages |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 10,452 | 9,752
Pass | Commercial Real Estate | Home improvement and home equity loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 13 | 15
Pass | Installment and student loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 426 | 570
Pass | Real Estate and Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 10,891 | 10,337
Special mention | Commercial Real Estate | Residential mortgages |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 0
Special mention | Commercial Real Estate | Home improvement and home equity loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 0
Special mention | Installment and student loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 11
Special mention | Real Estate and Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 11
Substandard | Commercial Real Estate | Residential mortgages |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 0
Substandard | Commercial Real Estate | Home improvement and home equity loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 0
Substandard | Installment and student loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 318 | 513
Substandard | Real Estate and Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 318 | 513
Doubtful | Commercial Real Estate | Residential mortgages |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 0
Doubtful | Commercial Real Estate | Home improvement and home equity loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 0
Doubtful | Installment and student loans |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | 0 | 0
Doubtful | Real Estate and Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans outstanding | $ 0 | $ 0
Minimum | Grades 4 and 5 – pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Notes receivable, period of loss recognition | 3 years |
Maximum | Grades 4 and 5 – pass |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Notes receivable, period of loss recognition | 4 years |

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